# AquaStable

> AquaStable (iPhone/iPad app by GENTARO KIMURA.)

- Source: https://appshunter.io/ios/app/aquastable/id6779032846 (this page in markdown: same URL + `.md`)
- Developer: [GENTARO KIMURA](https://appshunter.io/developer/6779032848)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 65 MB
- Languages: Japanese
- Released: 2026-06-28
- Data updated: 2026-10-13

## What is AquaStable?

AquaStable helps you track and manage the water quality of your freshwater and saltwater aquariums with ease.

■ Features
- Log water parameters with real-time charts (pH, temperature, NO₂, NO₃, GH, KH, Ca, Mg, salinity, chlorine, plus your own custom parameters)
- Scan test strips with your camera for automatic readings (supports Tetra 6-in-1 / 5-in-1)
- Calculators for water changes, dosing, specific gravity, and tank volume
- A dashboard with recommended-range bars and trend indicators to see your tank's status at a glance
- Manage and switch between multiple tanks
- Available in English and Japanese

■ AquaStable Pro (subscription)
- Unlimited tanks
- Unlimited water test logs
- Custom parameters
- KH / Ca / specific gravity calculators
- Data backup & restore

Subscriptions are available monthly or yearly and can be cancelled anytime.

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 |
| --- | --- | --- |
| AquaStable Pro (Monthly) | $0.99 | per month |
| AquaStable Pro (Yearly) | $9.99 | per year |


## Is AquaStable safe?

Not enough ratings yet to assess AquaStable.

## Is AquaStable legit?

AquaStable has limited verification signals. The AppsHunter Legitimacy Score for AquaStable is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.5.5 — 2026-09-29

- Fixed a bug where the app could become unresponsive when opening the dashboard, most likely to happen with several parameters enabled. Also made backup restore faster for larger amounts of data.

### 1.5.4 — 2026-06-28

No release notes.

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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 2026-10-13.*