# ペトリ vs いいことみっけ 感謝と達成の3行日記

The clearest difference is in-app purchases: いいことみっけ 感謝と達成の3行日記 at none against ペトリ's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ペトリ sells 2 in-app purchases, starting at $2.99 per month. いいことみっけ 感謝と達成の3行日記 asks for nothing beyond the download.

ペトリ ships an update fortnightly, いいことみっけ 感謝と達成の3行日記 monthly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | ペトリ | いいことみっけ 感謝と達成の3行日記 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Size | 118 MB | 44 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [shinji hagihara](https://appshunter.io/developer/1859404930) | [SHINYA TANIMOTO](https://appshunter.io/developer/1877842483) |

## What reviewers say

### 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 |


### いいことみっけ 感謝と達成の3行日記

[App page](https://appshunter.io/ios/app/3/id6799087971)

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

**In-app purchases:** none


## Frequently asked questions

### Is ペトリ free?

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

### Is いいことみっけ 感謝と達成の3行日記 free?

いいことみっけ 感謝と達成の3行日記 is free to download, with no in-app purchases.

### Do ペトリ or いいことみっけ 感謝と達成の3行日記 have ads?

Neither ペトリ nor いいことみっけ 感謝と達成の3行日記 shows ads.

### Which is updated more often, ペトリ or いいことみっけ 感謝と達成の3行日記?

ペトリ ships an update fortnightly, and いいことみっけ 感謝と達成の3行日記 monthly. Most recently, ペトリ was updated on October 6, 2026 and いいことみっけ 感謝と達成の3行日記 on October 16, 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.*