Acro Reef vs ReefPilot
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Acro Reef
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Track every coral, catch water swings early, and never miss a treatment. Acro Reef is a private, offline reef tank tracker built for serious coral keepers. Follow growth with photo timelines, monitor alkalinity and other water parameters, schedule recurring care, and track treatment outcomes in one place. Every Acropora, Stylophora, and Montipora gets its own record โ not a line in a spreadsheet. Track where you got it, what you paid, and how it's growing. Compare today's photo against last month's, mark affected tissue directly on photos, and follow treatments, outcomes, and recurrences in a unified case timeline. WATER TRENDS THAT MATTER Daily alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature, and pH readings stop being numbers and start being a line. Customize targets and swing thresholds, add parameters such as ORP or potassium, enter a batch of tests at once, and see tank events directly on the chart. REEF CARE, ON SCHEDULE Create recurring water tests, water changes, dosing, cleaning, and equipment tasks with local reminders. Estimate 14-day ALK, calcium, and magnesium consumption, calculate a dose, and keep a chronological tank-event log. TREATMENT SCHEDULING, DONE RIGHT Built-in protocols for the dips and tank treatments serious SPS keepers actually use โ Bayer Dip (AEFW), Interceptor (Red Bugs), Levamisole (AEFW), Peroxide Dip (algae/cyano), Fluconazole (Bryopsis). Dose-progress pips track which doses you actually completed, not just what was scheduled. Today-screen reminders surface what's due. ON-DEVICE, NO ACCOUNTS Your reef data lives on your device. No cloud account to sign up for, no analytics, no telemetry, no tracking. Create a complete backup containing tanks, corals, photos, readings, care schedules, and preferences, then restore it when needed. Acro adapts to both iPhone and iPad. FREE TO TRY Free tier: track up to 2 corals, keep 30 days of water history, and store up to 3 photos per coral. Treatment logging is unlimited so new SPS keepers can get help with the protocols immediately. ACRO PRO โ ONE-TIME PURCHASE Unlock unlimited corals, full water history, unlimited photos per coral, and CSV export. Buy once. Yours forever. No subscription, no recurring charge. IMPORTANT โ TREATMENT DISCLAIMER Treatment protocols, dosages, and durations shown in Acro are hobbyist references compiled from public reefkeeping sources. They are not veterinary advice. Always verify dosing with the chemical's product label and your own research before use; some compounds (e.g. levamisole, fluconazole, imidacloprid-based dips) are hazardous to invertebrates, pets, and humans if misused. Acro runs on iPhone and iPad. Requires iOS / iPadOS 17 or later.
ReefPilot
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ReefPilot is the offline-first command center for your saltwater reef aquarium โ water chemistry, dosing, livestock compatibility, and maintenance, all on your iPhone and iPad with nothing leaving your devices. PARAMETERS & DOSING Log alkalinity, calcium, magnesium, salinity and more in seconds. See trends with target bands, get drift alerts before a parameter drifts out of range, and calculate the exact dose to fix it. LIVESTOCK & COMPATIBILITY Browse a built-in library of reef species. Before you buy, check any fish or coral against your own tank for aggression, reef-safety, adult size and water needs. MAINTENANCE Never miss a water change, test, or dose. Recurring reminders keep your routine on track. PRIVATE, AND YOURS FOREVER One-time purchase. No subscription. No account. Optional private iCloud sync keeps your tanks together across your devices. Built for beginners and experienced reefers alike, with a Simple mode and a Pro mode.
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Verdict
Acro Reef and ReefPilot are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Acro Reef sells 1 one-off in-app purchase and ReefPilot sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Acro Reef | ReefPilot |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | โ |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details โ not scored | ||
| Size | 3 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Chih Han Lin | Sahil Jain |
In-app purchases
Acro Reef
- Acro Pro$5.99
ReefPilot
- ReefPilot Unlocked$19.99
Questions
Is Acro Reef free?
Is ReefPilot free?
Do Acro Reef or ReefPilot have ads?
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