# ReefKeep

> Utilities

Canonical page: [https://chrome-stats.com/d/id6762442240](https://chrome-stats.com/d/id6762442240)

## Overview

- **ID:** `id6762442240`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Enovira AB
- **Category:** Utilities
- **Version:** 1.1
- **Last updated:** 2026-04-22
- **First published:** 2026-04-21
- **Size:** 2.19 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/reefkeep/id6762442240)
- **Privacy policy:** [https://www.enovira.com/en/ios/privacy](https://www.enovira.com/en/ios/privacy)

## Description

Keep your reef tank healthy. Log parameters in under a minute, spot problems before they happen, and never forget a water change again.

ReefKeep is a modern, private tracker for saltwater and freshwater aquariums — built for hobbyists who want fast logging and proactive insights, not just prettier graphs.

WHAT YOU CAN DO
• Log 8 parameters in under a minute with a clean one-screen entry
• Scan Hanna Checker readings with the camera — no more transcribing numbers
• Track alkalinity, calcium, magnesium, nitrate, phosphate, pH, salinity, temperature and any custom parameter you care about
• See trends as native charts with your target ranges overlaid
• Schedule recurring tasks (water changes, filter swaps, skimmer cleaning) with local reminders
• Record livestock with timelines for spawning, fragging, moves and notes

THE INSIGHTS ENGINE
Other apps show you numbers. ReefKeep tells you what they mean.
• Trend alerts — "Alkalinity has fallen 8% over your last 5 tests"
• Correlation hints — "Alk and calcium are both dropping. Check your 2-part dosing."
• Stale data warnings — "You haven't tested nitrate in 12 days"
• Smart water-change recommendations based on your actual nitrate trajectory, not a fixed schedule

Everything runs on your device. Nothing leaves your phone unless iCloud sync is enabled.

ASK THE ON-DEVICE COACH
With Apple Intelligence (iPhone 15 Pro and later), tap any insight and get a plain-language explanation grounded in your own tank's readings — all processed on-device, no accounts, no servers.

BUILT FOR REEFERS
• Dark mode first — matches how you actually use the app next to a lit tank
• Dual units everywhere: L/gal, °C/°F, ppt/SG, dKH/meq/ppm
• Multiple tanks (Pro)
• iCloud sync across your iPhone and iPad — included, not an upgrade
• Zero ads, zero tracking SDKs, zero account required

PRO UNLOCKS
• Unlimited tanks
• Unlimited parameter history
• Insights engine
• CSV export for your records
• Photo galleries
• Apple Watch (coming soon)

Monthly and yearly subscriptions, or a one-time lifetime unlock if you prefer to own your tools.

ReefKeep is built by a small team that uses it on their own tanks. We're not trying to be everything for every hobby. We're trying to be the tool you open once a week without thinking, and the app that catches a problem before it costs you a fish.

The app applies the standard Apple Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Rankings

- #2,310,555 — Overall

## Similar extensions and apps

- [ReefKeeper: Aquarium Tracker](https://chrome-stats.com/d/id6780324072)
- [ReefNote: Aquarium Log](https://chrome-stats.com/d/id6788604575)
- [ReefLog - Reef Tank Tracker](https://chrome-stats.com/d/id6791190017)
- [ReefLog: Reef & Tank Care](https://chrome-stats.com/d/id6782130260)
- [Reef Metrics](https://chrome-stats.com/d/id6758943121)
- [Reefly](https://chrome-stats.com/d/id6766267836)
- [Aquarium Water Tracker - Reef](https://chrome-stats.com/d/id6759508580)
- [ReefFlow: Reef & Aquarium](https://chrome-stats.com/d/id6748268688)
- [ReefTracker - Aquarium Log](https://chrome-stats.com/d/id6791877746)
- [ReefLog: Reef Tank Tracker](https://chrome-stats.com/d/id6761686043)
- [Aquarium Log Reef Tank Manager](https://chrome-stats.com/d/id6777471471)
- [ReefCompanion](https://chrome-stats.com/d/id6758550121)

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6762442240)