# Petriii! vs FishLog

The clearest difference is update cadence: Petriii! at every 10 days against FishLog's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Petriii! ships an update every 10 days, FishLog every 2 months. The most recent releases landed on October 16, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Petriii! | FishLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Size | 110 MB | 4 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Marcel Meyer](https://appshunter.io/developer/1892344058) | [Florian Leistner](https://appshunter.io/developer/1893176225) |

## What reviewers say

### Petriii!

[App page](https://appshunter.io/ios/app/petriii/id6761992703)

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

**In-app purchases:** none


### FishLog

[App page](https://appshunter.io/ios/app/fishlog/id6762161411)

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

**In-app purchases:** none


## Frequently asked questions

### Is Petriii! free?

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

### Is FishLog free?

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

### Do Petriii! or FishLog have ads?

Neither Petriii! nor FishLog shows ads.

### Which is updated more often, Petriii! or FishLog?

Petriii! ships an update every 10 days, and FishLog every 2 months. Most recently, Petriii! was updated on October 16, 2026 and FishLog on October 19, 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.*