# AquaKeeper vs Reef Analysis

The clearest difference is in-app purchases: Reef Analysis at none against AquaKeeper's 3. Reef Analysis also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price there is nothing between them.

Both are free to download. AquaKeeper sells 3 in-app purchases, starting at $0.99 per month. Reef Analysis asks for nothing beyond the download.

AquaKeeper ships an update every 2 months, Reef Analysis every 3 days. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | AquaKeeper | Reef Analysis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 17 MB | 10 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trang Le](https://appshunter.io/developer/1797500654) | [Ark Technology Ltd](https://appshunter.io/developer/6781222453) |

## What reviewers say

### AquaKeeper

[App page](https://appshunter.io/ios/app/aquakeeper-fish-tank-tracker/id6773038204)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month | $0.99 | per month |
| One Year | $8.99 | per year |
| Lifetime | $12.99 | one-time |


### Reef Analysis

[App page](https://appshunter.io/ios/app/reef-analysis/id6781222451)

**In-app purchases:** none


## Frequently asked questions

### Is AquaKeeper free?

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

### Is Reef Analysis free?

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

### Do AquaKeeper or Reef Analysis have ads?

AquaKeeper shows ads; Reef Analysis does not.

### Which is updated more often, AquaKeeper or Reef Analysis?

AquaKeeper ships an update every 2 months, and Reef Analysis every 3 days. Most recently, AquaKeeper was updated on October 5, 2026 and Reef Analysis on October 6, 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.*