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ReefTracker Feature Overview

Last updated: 25 August 2026 Β· covers published version 1.3.2

ReefTracker is an offline-first reef-aquarium companion for Android and iOS. Log your water tests in seconds and see at a glance whether every value is healthy – with color-coded safe ranges, history graphs, trends and early warnings, dosing tools, maintenance reminders, and safe backups. Everything is stored on your device unless you choose your own cloud backup: no account, no cloud requirement, no ads.

Each feature below is either included for everyone (STANDARD) or part of the ReefTracker Pro tier (PRO). Features marked EXPERIMENTAL stay hidden until you switch them on from the welcome screen or later in Settings β†’ Experimental.

Founder's Edition: the Pro tier hasn't launched yet – install ReefTracker now and every Pro feature on this page stays free for you forever, even on a new device.

Water parameter tracking

FeatureEdition
Core reef parameters: temperature, pH, salinity, alkalinity, calcium, magnesium, nitrate, phosphate, ammonia, nitrite, ORPSTANDARD
Color-coded health zones – every value classified green / amber / red against its safe range, including a built-in recommended ORP range when you add an ORP probeSTANDARD
Setup-type presets: fish-only, soft coral, LPS, SPS and mixed tanks each come with recommended parameters and safe rangesSTANDARD
Safe ranges follow the recommended values for your aquarium type on their own – change the type and every range you have not touched follows along, and improvements to the recommended ranges reach your tank automatically. Any range stays fully editable per parameter, per aquarium – tune the app to your tank's targets, and reset a parameter back to the recommended range whenever you wantSTANDARD
Choose which parameters to track, and in what order they appear – and untrack one at any time without losing anything: its readings stay, and adding it back restores the full history and your custom rangesSTANDARD
Batch reading entry – log a whole test session at once, kept together as one sessionSTANDARD
Test sets – named parameter groups (e.g. "Daily test", "Weekly test") to speed up routine entrySTANDARD
Typo protection – physically impossible values are rejected, implausible ones ask for confirmation before savingSTANDARD
Notes on every reading, water change and maintenance eventSTANDARD
Sensible display precision and units per parameter (e.g. nitrite in ppb)STANDARD

Multiple aquariums

FeatureEdition
Up to 2 aquariums (e.g. a display tank and a quarantine tank), each with its own parameters, ranges, history and dosingSTANDARD
Unlimited aquariumsPRO
One-tap aquarium switcher from the top barSTANDARD
All your aquariums at a glance – the aquarium list shows each tank's health score in its own color and when it was last tested, so you can see which tank needs you before opening it; tapping one switches to it and takes you straight backSTANDARD
Per-tank profile: name, setup type, volume, start date, vendor/model, notesSTANDARD
Deleted aquariums can be restored with Undo before the deletion becomes finalSTANDARD

Dashboard & tank health

FeatureEdition
Grouped dashboard with gauge dials for chemistry and nutrients, compact environment pills, and a combined ratios cardSTANDARD
Alternative "Flat" dashboard layout – one custom-ordered grid of cardsSTANDARD
"Flat with graphs" dashboard layout – the flat grid where every card also shows a small two-week graph of recent readings above the color-coded current valueSTANDARD
Tank health score – a 0–100 score with a grade (excellent / good / caution / critical), weighted by parameter importance and never letting one red value hide behind greensSTANDARD
Per-parameter health breakdown – see exactly which values drag the score downSTANDARD
Tank stability score – the second axis of tank health: how much values have been swinging over the last 30/60/90 days, independent of where they sit nowPRO
Smart insights – a short, prioritized list of plain-language observations: out-of-range values, predicted problems, recovering parameters and overdue tests. Computed entirely on-device by deterministic rules – no AI service, no networkPRO
Freshness awareness – readings older than 30 days are surfaced as stale instead of silently coloring the dashboardSTANDARD
Parameter ratios with recommended zones: POβ‚„ : NO₃, Mg : Ca, Ca : Alk, Mg : AlkSTANDARD
Free (toxic) ammonia estimate – derives un-ionized NH₃ from your ammonia, pH, temperature and salinity using published scientific models (Emerson 1975, US EPA 1989), shown against EPA-anchored toxicity limitsSTANDARD

Graphs, history & trends

FeatureEdition
History graph for every parameter with the safe range shaded behind the dataSTANDARD
Pinch-zoom and pan on all graphs, double-tap to resetSTANDARD
Min / Avg / Max / test-count statistics per parameter and time rangeSTANDARD
Compare view – all parameter graphs on one screenSTANDARD
Ratio graphs with the same zoom, pan and value popups as parameter graphsSTANDARD
Trend detection – a regression over your recent readings shows the direction and per-day rate of changeSTANDARD
Early-warning forecast – projects when a drifting value will leave its safe range ("amber in ~5 d"), before it happensSTANDARD
Recovery detection – a value moving back toward its safe range is recognized as improving, not flagged as a problemSTANDARD
Swing detection – a parameter that bounces around instead of drifting is reported as swinging, with the size of the typical swing, rather than given a forecast its readings cannot supportSTANDARD
Forecasts that know when to stay quiet – no prediction is made from readings more than a month old, and a nutrient falling toward zero (a tank finishing its cycle) is not warned about for approaching the bottom of the scaleSTANDARD
Share any graph as an imageSTANDARD
Edit or delete past readings, including whole test sessions, with UndoSTANDARD

Microelements & ICP

FeatureEdition
Full 39-element ICP panel, whether you enter results yourself or import ATI, Fauna Marin and Oceamo reports; equivalent lab measurements are converted into the matching aquarium parameterSTANDARD
Default safe ranges per element anchored on natural seawater and ICP-lab targets; contaminants use one-sided "up to a ceiling" rangesSTANDARD
ICP-style units: mg/L for majors, Β΅g/L for traces and contaminantsSTANDARD
Manual ICP-style batch entry – record any selection of all 39 elements together with one test date and note, with the same value checks used for every other readingSTANDARD
Hobby-kit filter – quick entry for the elements home test kits exist for (strontium, iodine, iron)STANDARD
Microelement summary card on the dashboard: how many measured, how many out of range, worst status, last test dateSTANDARD
ICP report import – load a Fauna Marin or ZIMS CSV, or an ATI, Fauna Marin or Oceamo PDF report, and store the whole aquarium analysis in one step; separate osmosis-water results stay out of the aquarium readingsPRO

Measurement import & meters

FeatureEdition
Hanna Lab file import – import the test history CSV shared from the Hanna Lab app (HI97115 Marine Master): original timestamps, grouped test sessions, smart de-duplication so re-imports only add what's new, and a one-tap undoPRO
Hanna checker direct connection EXPERIMENTAL – run measurements live over Bluetooth on a Hanna HI97115C photometer, method by method or via saved test sets, and save the confirmed results with the meter's timestamps. Before saving you can untick any value you don't trust, or send it back to the meter to be measured again – the new reading replaces it and shows what it replaced. Built-in reagent reaction timers (15 s / 30 s / 2 min) beep when the wait is over, the app beeps again as each result arrives, and the screen stays awake while a test is running. Once connected, the checker also gets its own card on the Connected devices page – name, serial number, when it last measured, and a button that starts the next measurement right there. Measurements only: meter settings and firmware updates stay in Hanna's own Hanna Lab appPRO
Environment capture on live measurements EXPERIMENTAL – when saving a Hanna checker session, also record the aquarium's current salinity, temperature, pH and ORP from the connected meters assigned to it (ReefFactory meters and Red Sea ReefControl), all in the same session. Opt-in and remembered; any value can be excluded with a tap, values the checker itself measured are never duplicated, and when several devices report the same parameter the first one in your chosen brand and device order winsPRO
Checker display scan EXPERIMENTAL – point the camera at a Hanna pocket checker's LCD and save the shown value without typing; 14 checker models supported, recognition runs fully on-device (no photos stored or uploaded)PRO
Automatic checker recognition – the scanned checker's model is identified from its case color and the reading's display format, so scanning is truly one-tap; the app only asks when models would interpret the value differently, and never guesses silentlyPRO
Scan viewfinder with pinch-to-zoom (starts at 2Γ—) – read the display from a comfortable distance instead of holding the phone against the checkerPRO
Experimental features are opt-in – they stay completely hidden until switched on from the welcome screen or later in Settings β†’ ExperimentalSTANDARD
Optional quick-scan camera button next to "Add reading" – one-tap scanning for checker owners, no lost screen space for everyone else (off by default)STANDARD
ReefFactory device live values EXPERIMENTAL – read the current salinity, pH and temperature from ReefFactory local meters (Salinity Guardian, pH Monitor, Temperature Controller) over your Wi-Fi and save them as measurements. Add a meter by its IP address or hostname and the app identifies the model for you, naming it after its ReefFactory product. Every meter is read when you open the dashboard; pull to refresh or use Refresh all to re-read them, save one card from its menu, or use Save all for the lot. The Temperature Controller's card also shows a Heating or Cooling badge whenever it is actually running that output, straight from the controller itself. Press and hold a card to move it into the order you prefer. Read-only: it only reads values – settings, calibration and firmware stay in the ReefFactory app. Works on your local network only: your phone has to be on the same Wi-Fi network as the meters, there is no cloud connectionPRO
Red Sea ReefBeat dosing-pump status EXPERIMENTAL – see your ReefDose pump (2- or 4-head) live over your Wi-Fi: each head's supplement, a gauge of today's dosing progress against the scheduled daily amount, and days of supplement remaining colored green, amber or red as the container runs low – plus warnings for missed doses, needed recalibration, a low backup battery or a wrong pump clock. The card's menu opens today's dosing queue – every dose the pump still has to deliver before midnight, with its time, supplement and volume, and the running total. Add the pump by its IP address or hostname and the app identifies it for you, then press and hold a card to move it into the order you prefer when several devices share the dashboard. Read-only: dosing, schedules and calibration stay in the ReefBeat app. Works on your local network only: your phone has to be on the same Wi-Fi network as the pump, there is no cloud connectionPRO
Red Sea ReefATO+ status EXPERIMENTAL – see your auto-top-off unit live on the same dashboard: water level, the sensor's temperature probe, today's top-offs (fills and volume), your tank's average daily evaporation, and how much reserve water is left – volume and days until empty, colored green, amber or red as the reservoir runs low. The leak-sensor row always tells you whether the sensor is disconnected, not enabled or standing by Dry, and a red warning names whether it found RO/DI or aquarium water when a leak is detected – alongside warnings for level-sensor trouble or the fill pump running. Read-only: settings and calibration stay in the ReefBeat app. Works on your local network only: your phone has to be on the same Wi-Fi network as the unit, there is no cloud connectionPRO
Red Sea ReefMat status EXPERIMENTAL – see your roller filter live on the same dashboard: how much fleece is left on the roll, as a gauge against the roll's full length with the days left at the current rate, colored green, amber or red as it runs out – plus how much the mat advanced today, its daily average, and the date you fitted the roll with its age in days. Warns you when the roll is spent or nearly spent, when the sensor needs cleaning, when automatic advancing is switched off, and while the mat is advancing. Read-only: settings and manual advancing stay in the ReefBeat app. Works on your local network only: your phone has to be on the same Wi-Fi network as the mat, there is no cloud connectionPRO
Red Sea ReefRun status EXPERIMENTAL – see your return and skimmer pumps live on the same dashboard: each pump's name, its speed as a circular gauge, and its motor temperature, with a green Sensor badge on any pump the overflow sensor controls. Warns when a pump or its water-level sensor isn't detected, when a pump reports a problem – a skimmer paused with a full collection cup says "Full cup" plainly – when the level sensor a pump depends on has gone offline, and about a low backup battery or a wrong clock. Read-only: speeds and schedules stay in the ReefBeat app. Works on your local network only: your phone has to be on the same Wi-Fi network as the controller, there is no cloud connectionPRO
Red Sea ReefLED status EXPERIMENTAL – see your light live on the same dashboard: current white, blue and moon output as gauges, the moon phase being simulated, fan speed and heatsink temperature. Warns you when the fixture has been knocked or hung at an angle, while an acclimation ramp is running (with the days left), and about a low backup battery or a wrong clock. Read-only: programs and intensities stay in the ReefBeat app. Works on your local network only: your phone has to be on the same Wi-Fi network as the light, there is no cloud connectionPRO
Red Sea ReefWave status EXPERIMENTAL – see all your wave pumps on the dashboard in one card, one line each: the flow they're set to run right now, shown as a circular gauge that follows their own schedule through the day, next to the pump's name. The pumps don't report their live speed over the local network, so the figure comes from their schedule; a pump taken off auto is dimmedPRO
Red Sea ReefControl probe monitoring EXPERIMENTAL – see salinity, pH and ORP from a ReefControl Lite or Pro together on one clean live card. Salinity follows your selected ppt or SG unit, ORP is shown in mV, and the temperature built into each combined probe gets its own clearly labelled row in your selected Β°C or Β°F. If a leak detector is attached, the card also shows green Dry or a red Leak detected warning. Save the controller's salinity, pH, ORP and first available probe temperature from its menu or with Save all; the same current values can be proposed alongside a Hanna checker session. Value colors follow the ranges configured for your aquarium in ReefTracker, just like the Wall display, where each attached primary water parameter and the first available probe temperature gets its own large card and 24-hour line. Read-only control: rules, calibration and notifications stay in the ReefBeat app. Works on your local network onlyPRO
Neptune Apex probe values EXPERIMENTAL – read your Apex over your Wi-Fi and save its probe values as measurements: temperature, pH, ORP and salinity, plus a Trident’s alkalinity, calcium and magnesium alongside them. Add a controller by its IP address and the login you use on its own web page – current Apex controllers and older Apex, Apex Jr and Apex Classic units are all supported, and the app works out which it is talking to. It also reads whether your Apex is set to Β°C or Β°F, so the temperature is stored correctly either way. Read-only: outlets, feed cycles and programs stay in Fusion. Works on your local network only: your phone has to be on the same Wi-Fi network as the controller, there is no cloud connectionPRO
Neptune Apex outlet status EXPERIMENTAL – see what every outlet is doing on the same card, and get a warning when one has been switched by hand and is no longer following its program – the forgotten override that leaves a return pump off after a water change. A running feed cycle is flagged too, so you know why the pumps are paused. Outlets driven by a profile are shown as exactly that, rather than pretending to be simply on or offPRO
Find devices on your Wi-Fi EXPERIMENTAL – tap Add and the app searches your network for ReefFactory meters and Red Sea ReefBeat devices, then lists what it found so you can add each one with a single tap. No hunting for IP addresses in your router's settings. Devices the app can't read yet are still listed, so you always know what was found, and typing an IP address by hand remains available for unusual network setupsPRO
Automatic address repair EXPERIMENTAL – devices are recognised by their hardware identity, not their address, so when your router hands a device a new IP and it stops responding, a scan spots it and one tap points the app back at it – keeping the device's name, aquarium and position on the dashboardPRO
Rename any device EXPERIMENTAL – the Edit item in a card's menu renames the meter or ReefBeat device, so the dashboard calls it what you call it. The card carries that name alone: the model code and IP address the app needs are no longer printed under itPRO
All your devices on one page EXPERIMENTAL – every meter, pump, filter, light and controller you've connected lives on a single Connected devices page with its own tab in the bottom bar. A row of brand buttons across the top scopes it – tap All to see the lot grouped by brand, or one brand to see only its devices. Brands you don't own never appear, and with a single brand the buttons disappear entirely. Swipe left or right anywhere on the page to move to the next or previous brand – no scrolling back up to the buttons, and the page returns to the top so you can see where you landed. Each device keeps its own full card – nothing is summarised away. Refresh all and Save all float within thumb's reach however far the list is scrolled, and adding a device sits in the top barSTANDARD
Refresh and save only what you're looking at EXPERIMENTAL – the page refreshes the devices in view when you return to it, reopen the app on it, or revisit a brand after two minutes; filtering to one brand doesn't wake the rest of your equipment. Pull down past the top or tap Refresh whenever you want a reading immediately. Save all writes the readings of every meter in view in one go, and merges values taken moments apart into a single measurement instead of several. Its count tells you how many distinct parameters will be saved, without counting duplicate probe readings. It only appears when the devices in view can actually measure somethingPRO
Choose which brand wins EXPERIMENTAL – when two devices report the same reading for the same aquarium, the one higher up the page is the one that gets saved, and the confirmation tells you which device it came from rather than picking silently. Reorder brands from the button beside them, or press and hold a card and move it above its neighbours, and you've set that preference – there's no separate setting to hunt forPRO
Wrong-looking device readings are questioned, not stored EXPERIMENTAL – before a reading from a connected device joins your history the app checks it, the same way it checks what you type in by hand. A value far outside the typical range for that parameter, or one that reads as nothing at all – 0 dKH, no salt in the water, the classic sign a probe has come loose – is shown to you with its typical range beside it. Keep it if you know it's real, or skip just that value and still save everything else the other devices reportedPRO
Connected devices list – see what you own even without a Pro entitlement: the Connected devices page always lists your hardware with its brand, model, address and when the app last reached it (in each card's Details), whether or not live reading is unlockedSTANDARD
Wall display mode – turn a wall-mounted tablet into an always-on board of your aquarium: big color-coded value cards readable across the room, one per device and parameter (plus cards fed by your own measurements for everything else). Each device card has its own independently scaled 24-hour graph built only from that device's online readings, with a min/max band showing swings; your hand tests stay on their own manual-measurement cards. Wall settings can clear the collected online graph history completely or keep its latest 1, 4 or 12 hours without touching those hand-entered measurements. A ReefFactory Temperature Controller's temperature card also says Heating or Cooling while that output is running. Status tiles show the ATO water level, leak sensor and reservoir – the days it lasts turning amber, then red, as it runs low – every dosing head's remaining supplement – green, amber or red as the container runs low, in days or months – the fleece roll and the skimmer cup, and a bottom strip lists today's due tasks. The board never scrolls: tiles size themselves to the screen and extra pages rotate through automatically. It keeps the screen awake, hides the system bars, dims itself at night (a tap wakes it for a minute), and gently shifts the layout against OLED burn-in. Works with zero devices too – your stored readings still make a useful boardPRO
Wall display cards, your way – every value every device reports starts on the board; hide the duplicates you don't want and drag the rest into your own order. Hide all of a device's cards and the wall stops contacting that device entirely – and an app update can never quietly turn it back onPRO
Wall display auto-start – flip one switch and the app boots straight into the board, so a rebooted tablet finds its way back to the wall by itself; leaving the mode takes a deliberate press-and-hold, so a brushed-past panel stays putPRO

Dosing & supplements

FeatureEdition
Dosing plan per aquarium – record what you dose, how much and on which schedule (daily, every N days, or fixed weekdays)STANDARD
Built-in supplement catalog of reef brands and dosing programs, with verified product potenciesSTANDARD
Custom products for anything not in the catalogSTANDARD
Manual dose log – one-off doses, vitamins and medications, logged outside the regular planSTANDARD
Dosing history – every past plan and change is kept as dated history, with swipe-left deletion for mistakesSTANDARD
Element status tags – each supplement is tagged with the current dashboard status of the element it targetsSTANDARD
Dose calculator (consumption mode) – computes your tank's actual daily consumption from recent readings and doses, and recommends whether to raise, lower or keep the current dosePRO
Correction dose calculator – computes the one-off dose to lift an element to its target, and automatically splits it over several days when the rise would exceed the element's safe daily limitPRO
Salinity-adjusted targets – correction targets stated for 35 ppt seawater can be scaled to your tank's actual measured salinity, per tank, using your recent salinity readingsPRO
Per-parameter correction targets, pre-seeded from your tank's setup typeSTANDARD
Calculator shortcuts from a parameter's graph, including a "below range" prompt that jumps straight into correction modePRO

Maintenance, actions & reminders

FeatureEdition
Action log: water changes (with volume), carbon/media changes (with weight), equipment cleanings – all with notes and full historySTANDARD
Maintenance schedule – recurring or one-off tasks: every N days/weeks/months, fixed weekdays ("every Monday"), or a fixed day of month ("every 1st")STANDARD
Elastic scheduling – completing a task resets its timer, so a late water change doesn't stack phantom overdue warningsSTANDARD
Due and overdue tasks surfaced on the Actions tab, one tap to mark doneSTANDARD
Testing reminders – "remind me to test every N days" per parameter, including microelementsSTANDARD
Dosing reminders at the scheduled dose timeSTANDARD
Local notifications, grouped per aquarium and kind, with a configurable delivery time – all opt-inSTANDARD

Reverse-osmosis unit

FeatureEdition
RO/DI unit tracking, shared across all aquariums – sediment, carbon block, membrane and DI resin stages plus custom stagesSTANDARD
Per-stage lifespan with a remaining-life bar and green/amber/red due statusSTANDARD
Usage-intensity presets – say whether your unit makes light, moderate or heavy volumes of water and every standard stage takes that level's typical replacement interval, replacing any interval you had set yourself; custom stages are left alone and every part stays editable afterwardsSTANDARD
Replacement log with full history and UndoSTANDARD
Replacement remindersSTANDARD

Backup, export & sync

FeatureEdition
Full backup to a single file, shared anywhere via the system share sheetSTANDARD
Safe restore – every backup is integrity-checked, validated and rehearsed on a scratch database before it touches your data; a bad file can never wipe the appSTANDARD
Automatic local backups on a schedule, with a configurable number keptSTANDARD
Cloud backup sync – backups upload automatically to your own cloud and restore on a new device: Google Drive on Android (the app can only see its own folder), iCloud Drive on iOS (a ReefTracker folder you can browse in the Files app, no account setup in the app)PRO
Multi-device restore (Google Drive on Android, iCloud Drive on iOS) – when another of your devices uploaded a newer backup, the app offers to restore it on start; a local safety copy is saved first, and if both devices changed you choose which data winsPRO
New-device restore (Google Drive on Android, iCloud Drive on iOS) – a fresh install can pull your newest cloud backup straight from the welcome screen; recovering your data never requires PROSTANDARD
Named devices – each device labels its cloud backups (e.g. "Living room tablet"). On Android the label travels with the file, so Manage backups tells you which device wrote which backup; iCloud cannot carry it, so on iOS the name reaches you only in the launch offer to restore another device's newer backupPRO
Measurement export as CSV for spreadsheets, using stable column names that compare across app languagesSTANDARD
"Ask your AI" export – a ready-to-paste summary of your tank (values, ranges, trends, dosing, maintenance) for ChatGPT, Claude or any AI chat; prepared entirely on your device, nothing is sent anywhereSTANDARD
Backups carry everything: aquariums, readings, ranges, dosing, maintenance, RO unit, import state, connected devices – while device preferences (language, units, theme) stay per-deviceSTANDARD

Tools & calculators

FeatureEdition
Water-change planner – project how one or repeated batch changes or a continuous automatic exchange may move a measured dissolved parameter. It starts from the active aquarium’s water volume, latest reading, target, preferred units and last logged change size, then shows the value after each planned step, the effective cumulative replacement and how many equal changes can reach the target. Results clearly state the complete-mixing and no-new-production assumptions, so the projection stays an estimate to verify with a new measurementSTANDARD
Salinity, salt-mix and correction planner – convert among ppt, specific gravity and density readings from European glass hydrometers (areometers) such as ARKA and Tropic Marin. Enter the prepared water’s measurement temperature when it differs from the hydrometer’s 25 Β°C calibration point, and ReefTracker normalizes the result. Choose from 16 popular salt mixes for a manufacturer-backed first estimate, then calibrate each product from a batch you measured so ReefTracker remembers your aquarium’s value even when you switch salts. You can also enter a custom mix or calculate how much water to replace with RO/DI or separately prepared saltwater to bring an aquarium toward its target. Uses the active aquarium’s volume, latest reading, preferred units and target range; every result stays a starting estimate to mix outside the aquarium, measure and adjustSTANDARD
Reef unit converter – enter a value in any unit and see every equivalent update instantly: alkalinity in dKH, meq/L and ppm CaCO₃, temperature in Β°C and Β°F, and volume in litres, US gallons and Imperial gallonsSTANDARD
Free ammonia explanation view – see the toxic-fraction math and the inputs behind the estimateSTANDARD

Experience & platform

FeatureEdition
Offline-first – your aquarium log lives on your device and the core app needs no account, sign-up or cloud; no tracking and no ads. Network access is limited to features you choose, such as your own cloud backup or local aquarium devicesSTANDARD
Android and iOS from one codebase, with platform-native controls and styling on eachSTANDARD
Light and dark themes: follow the system or pick oneSTANDARD
Unit preferences: Β°C/Β°F, ppt/SG, liters/gallons – switching units never changes health colors, because values are stored canonicallySTANDARD
7 languages: English, Czech, German, French, Italian, Polish, Russian – including locale-aware number entrySTANDARD
First-run feature tourSTANDARD
Update notice – a quiet heads-up when a newer ReefTracker version is on your store: on Android the update downloads in place through Google Play while you keep using the app, on iOS one tap opens the App Store page. One notice per new version, never a nagSTANDARD
Built-in help links – the illustrated user guide, support page and privacy policy on reeftracker.org, one tap from SettingsSTANDARD
Undo everywhere – deleting readings, tanks, plans, tasks or stopping a dosing plan can always be taken backSTANDARD
Share diagnostics – the app keeps a small log of its own internal errors on your device, sent nowhere by itself, and can share it as a text file from Settings β†’ About, so a problem that only happens on your phone can be attached to a support messageSTANDARD

This page describes what each feature does, not how to use it – the illustrated user guide walks through every screen. Experimental features are marked as such in the app and stay hidden until enabled from the welcome screen or later in Settings β†’ Experimental.