Reeflo vs ReefKeeper
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Reeflo
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Reeflo is the focused, beautiful tracker for your saltwater reef aquarium β like Apple Health for your tank. Log a full water test in under 5 seconds. Reeflo pre-fills your last values, so you just tweak what changed and save. Watch your parameters trend over time with clean charts, target zones and out-of-range alerts. β’ Quick Log: temperature, salinity, pH, alkalinity, calcium, magnesium, nitrate, phosphate and more β’ Beautiful trend charts with target ranges (7/30/90 days) β’ Maintenance routines with one-tap completion and reliable reminders β’ Livestock inventory with photos and growth timelines β’ Dosing helper for Ca / KH / Mg β’ Dark-first design made for the reef β’ Private by design β your data stays on device and syncs via iCloud Reeflo Pro unlocks unlimited tanks, trends, routines, dosing, livestock and export. Keep your corals thriving. Download Reeflo and dial in your reef. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://develak.com/privacy-policy/
ReefKeeper
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ReefKeeper helps aquarium hobbyists and maintenance professionals keep tanks healthy through fast water parameter tracking, maintenance reminders, and visual trend analysis. Whether you manage a freshwater aquarium, reef tank, or saltwater system, ReefKeeper keeps your data organized and accessible. FirstβWeek Livestock Watch gives every new livestock introduction its own seven-day record. Log daily observations and equipment checks, follow guided core water checks, and keep results in your normal aquarium history. If something looks concerning, ReefKeeper provides measured next steps, not a diagnosis or treatment plan. FEATURES β’ Track water parameters β’ Log pH, salinity, nitrate, phosphate, alkalinity, calcium, magnesium, temperature, and more β’ View historical trends with interactive charts β’ Create recurring maintenance schedules β’ Track water changes and equipment maintenance β’ Manage multiple aquariums β’ Offline-first architecture β’ Export aquarium data PRO FEATURES β’ Unlimited aquariums β’ Advanced graphing β’ Custom safe ranges β’ Dosing calculators β’ Data export β’ Professional maintenance tools Designed by aquarium enthusiasts who wanted a faster and cleaner alternative to paper notebooks and complicated enterprise software. Privacy Policy: https://beartrailworks.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
Reeflo and ReefKeeper are too close to call on the numbers: across 6 compared parameters β price, update cadence, ads and in-app purchases among them β neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Reeflo sells 2 in-app purchases, starting at $4.99 per month and ReefKeeper sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Reeflo ships an update every 6 days, ReefKeeper weekly. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.
| Parameter | Reeflo | ReefKeeper |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days β better | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details β not scored | ||
| Size | 8 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Develak | Jose Salcido |
In-app purchases
Reeflo
- Reeflo Pro Monthly$4.991 Month
- Reeflo Pro Annual7 Days trial$29.991 Year
ReefKeeper
- Reef Keeper Pro Monthly$4.991 Month
- Reef Keeper Pro Yearly$44.991 Year
- Reef Keeper Pro: Lifetime$99.99









