Reefly
Aquarium Water & Tank Tracker
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
KNOW YOUR REEF IS HEALTHY. IN SECONDS.
ReefLog turns raw water test numbers into a clear tank health score - so you stop guessing and start knowing.
Log your parameters, see instant colour-coded feedback (Good · Near limit · Out of range), and track trends over time. Whether you keep a
saltwater reef, freshwater community, or planted aquarium, ReefLog gives your tank a grade every time you log.
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WHAT YOU CAN DO
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- Log pH, alkalinity, calcium, magnesium, ammonia, nitrate, salinity and temperature
- See instant status feedback as you type — no guesswork
- View trend charts with safe-range bands so problems are visible before they become emergencies
- Set maintenance reminders — water changes, feeding, dosing — so nothing slips
- Works for reef, saltwater, freshwater, and planted aquariums
TANK HEALTH SCORE
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After every log session, ReefLog grades your tank (A+, A, B+…) based on how your parameters compare to proven safe ranges. One glance tells you
everything.
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FREE TO START
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Log parameters and view charts for free. Upgrade to Pro for:
- Unlimited parameter history (beyond 30 days)
- Unlimited maintenance reminders
- iCloud sync across all your Apple devices
- Full historical charts
Built for hobbyists who take their tanks seriously.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes and performance improvements.
The developer, Justinas Kristopaitis, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Justinas Kristopaitis
- Size
- 3.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- ReefLog Pro $3.99
- ReefLog Pro $17.99
- Copyright
- © 2026 Justinas Kristopaitis