# Aquawiz vs Reef Stability

The clearest difference is in-app purchases: Aquawiz at none against Reef Stability's 3. Aquawiz also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Reef Stability's advantage is update cadence (weekly vs every 2 months). On price and ads there is nothing between them.

Both are free to download. Reef Stability sells 3 in-app purchases, starting at $6.99 per month. Aquawiz asks for nothing beyond the download.

Aquawiz ships an update every 2 months, Reef Stability weekly. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Aquawiz | Reef Stability |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/aquawiz/id6739469479/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free | — |
| Size | 52 MB | 9 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KUAN TING PAN](https://appshunter.io/developer/1783726527) | [YUSUF AYDIN](https://appshunter.io/developer/6771871523) |

## What reviewers say

### Aquawiz

[App page](https://appshunter.io/ios/app/aquawiz/id6739469479)

Automate and monitor your aquarium's water quality for optimal coral health. This app provides real-time tracking of key parameters like KH and pH, with automated dosing and seamless integration with smart aquarium gear.

**Highlights:** Real-time KH and pH tracking, Automated dosing control, Calcium reactor control, Trace element dosing system, Remote monitoring and alerts, Trend charting and insights

**Features:** macOS Compatibility

**In-app purchases:** none


### Reef Stability

[App page](https://appshunter.io/ios/app/reef-stability-dosing-tracker/id6799461220)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $6.99 | per month |
| Premium Annual | $39.99 | per year |
| Premium Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is Aquawiz free?

Aquawiz is free to download, with no in-app purchases.

### Is Reef Stability free?

Reef Stability is free to download, with in-app purchases available.

### Do Aquawiz or Reef Stability have ads?

Neither Aquawiz nor Reef Stability shows ads.

### Which is updated more often, Aquawiz or Reef Stability?

Aquawiz ships an update every 2 months, and Reef Stability weekly. Most recently, Aquawiz was updated on October 24, 2026 and Reef Stability on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*