# わんログ vs ペトリ

The clearest difference is ads: ペトリ at none against わんログ's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. わんログ sells 2 in-app purchases, starting at $2.99 per month and ペトリ sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | わんログ | ペトリ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | Every 5 days |
| Size | 68 MB | 127 MB |
| Requires iOS | **16.2** | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shin Matsumaru](https://appshunter.io/developer/1509647345) | [shinji hagihara](https://appshunter.io/developer/1859404930) |

## What reviewers say

### わんログ

[App page](https://appshunter.io/ios/app/id6775680314)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| wanlog Premium Monthly | $2.99 | per month |
| wanlog Premium Annual | $22.99 | per year |


### ペトリ

[App page](https://appshunter.io/ios/app/id6776859985)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ペトリ プレミアム 月額プラン | $2.99 | per month |
| ペトリ プレミアム 年額プラン | $29.99 | per year |


## Frequently asked questions

### Is わんログ free?

わんログ is free to download, with in-app purchases available.

### Is ペトリ free?

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

### Do わんログ or ペトリ have ads?

わんログ shows ads; ペトリ does not.

### Which is updated more often, わんログ or ペトリ?

わんログ ships an update every 5 days, and ペトリ every 5 days. Most recently, わんログ was updated on November 5, 2026 and ペトリ on November 5, 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.*