# ReefMate vs Reef Stability

The clearest difference is update cadence: Reef Stability at weekly against ReefMate's every 5 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ReefMate sells 2 in-app purchases, starting at $4.99 per month and Reef Stability sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReefMate ships an update every 5 weeks, Reef Stability weekly. The most recent releases landed on October 26, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ReefMate | Reef Stability |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 133 MB | 9 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Kulac](https://appshunter.io/developer/1782678392) | [YUSUF AYDIN](https://appshunter.io/developer/6771871523) |

## What reviewers say

### ReefMate

[App page](https://appshunter.io/ios/app/reefmate-aquarium-tracker-and-log/id6754282635)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $4.99 | per month |
| Annual | $34.99 | per year |


### 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 ReefMate free?

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

### Is Reef Stability free?

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

### Do ReefMate or Reef Stability have ads?

Neither ReefMate nor Reef Stability shows ads.

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

ReefMate ships an update every 5 weeks, and Reef Stability weekly. Most recently, ReefMate was updated on October 26, 2026 and Reef Stability on October 11, 2026.

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