# Reef Stability: Dosing Tracker — Alkalinity, calcium, nutrients

> Alkalinity, calcium, nutrients (iPhone/iPad app by YUSUF AYDIN.)

- Source: https://appshunter.io/ios/app/reef-stability-dosing-tracker/id6799461220 (this page in markdown: same URL + `.md`)
- Developer: [YUSUF AYDIN](https://appshunter.io/developer/6771871523)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 9 MB
- Languages: American English
- Released: 2026-08-19
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/reef-stability-dosing-tracker/id6799461220/reviews.md

## What is Reef Stability?

Reef Stability turns your own test results into the two things every reef keeper actually needs: how much to dose, and when to leave the tank alone.

Log your alkalinity, calcium, magnesium and nutrients, and Reef Stability learns how fast your tank uses each one. Then it works out the daily dose to hold it steady — from your data, not a generic chart. When a wobble is just test-kit noise, it says so, instead of sending you chasing a number.

WHAT IT DOES
- Know what to change — a daily dose from your own tank's measured uptake
- Stability first — it tells you when to do nothing
- Every parameter on one clean screen: alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature, pH
- Trends that filter out test-kit scatter, so you see real drift
- Safe by design — dose changes stay within reef-safe daily limits, with extra caution for SPS
- Honest by design — sourced chemistry, and it never invents a number it can't stand behind
- Your data is yours — full history and CSV export, free, forever
- No account, no sign-up — your logs stay on your device

FREE
Log, track and export everything — free, with no time limit.

REEF STABILITY PREMIUM
Unlocks the dose recommendations, supplement forecasting and cross-parameter interpretation. Available monthly, annually, or as a one-time lifetime purchase.

Stability over chasing numbers.

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Privacy Policy: https://reefstability.com/privacy
Terms of Use: https://reefstability.com/terms

Subscriptions are billed to your Apple ID. An auto-renewing subscription renews unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. A lifetime purchase is a one-time payment.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Annual | $39.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Lifetime | $89.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-20

No release notes.

## More apps by YUSUF AYDIN

- [ROKE - AI Discipline Assistant](https://appshunter.io/ios/app/roke-ai-discipline-assistant/id6771871521)

All apps by YUSUF AYDIN: https://appshunter.io/developer/6771871523

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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 2026-08-26.*