# Algae Scanner for Aquariums vs fishkeepr

The clearest difference is in-app purchases: fishkeepr at none against Algae Scanner for Aquariums's 2. fishkeepr also leads on update cadence (every 4 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Algae Scanner for Aquariums sells 2 in-app purchases, starting at $4.99 per 7 days. fishkeepr asks for nothing beyond the download.

Algae Scanner for Aquariums ships an update every 9 days, fishkeepr every 4 days. The most recent releases landed on September 16, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Algae Scanner for Aquariums | fishkeepr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Size | 39 MB | 66 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Szymon Niemiec](https://appshunter.io/developer/1853026562) | [CADEN ALEC HENDERSON](https://appshunter.io/developer/1890594919) |

## What reviewers say

### Algae Scanner for Aquariums

[App page](https://appshunter.io/ios/app/algae-scanner-for-aquariums/id6761097229)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Premium | $29.99 | per year |


### fishkeepr

[App page](https://appshunter.io/ios/app/fishkeepr/id6761639983)

**Features:** Family Sharing

**In-app purchases:** none


## Frequently asked questions

### Is Algae Scanner for Aquariums free?

Algae Scanner for Aquariums is free to download, with in-app purchases available.

### Is fishkeepr free?

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

### Do Algae Scanner for Aquariums or fishkeepr have ads?

Neither Algae Scanner for Aquariums nor fishkeepr shows ads.

### Which is updated more often, Algae Scanner for Aquariums or fishkeepr?

Algae Scanner for Aquariums ships an update every 9 days, and fishkeepr every 4 days. Most recently, Algae Scanner for Aquariums was updated on September 16, 2026 and fishkeepr on September 15, 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.*