# ReefKeep

> ReefKeep (iPhone/iPad app by Enovira AB.)

- Source: https://appshunter.io/ios/app/reefkeep/id6762442240 (this page in markdown: same URL + `.md`)
- Developer: [Enovira AB](https://appshunter.io/developer/1878624311)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-04-21
- Data updated: 2026-06-16
- User reviews in markdown: https://appshunter.io/ios/app/reefkeep/id6762442240/reviews.md

## What is ReefKeep?

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/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| ReefKeep Pro - monthly | $4.99 | per month |
| ReefKeep Pro - Yearly | $29.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| ReefKeep Lifetime Subscription | $79.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-04-22

• Redesigned Pro screen: clearer plan selection and an actual "Continue"
  button so you don't have to guess where to tap.
• Free-trial introductory offers are now supported when enabled for your
  Apple account.
• Minor polish and fixes.

### 1.0 — 2026-04-21

No release notes.

## More apps by Enovira AB

- [Misoki App](https://appshunter.io/ios/app/misoki-app/id6759444284)
- [HiveKeep](https://appshunter.io/ios/app/hivekeep/id6762450723)

All apps by Enovira AB: https://appshunter.io/developer/1878624311

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-16.*