# Three Lines vs シンプル3行日記

The clearest difference is ads: Three Lines at none against シンプル3行日記's shown. シンプル3行日記's advantage is update cadence (every 3 days vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Three Lines ships an update every 5 weeks, シンプル3行日記 every 3 days. Both last shipped on October 3, 2026.

## The numbers

| Metric | Three Lines | シンプル3行日記 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Every 3 days** |
| Size | 5 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Naoki Chiba](https://appshunter.io/developer/1895372512) | [Searial, Inc.](https://appshunter.io/developer/1875914396) |

## What reviewers say

### Three Lines

[App page](https://appshunter.io/ios/app/three-lines-daily-journal/id6790292467)

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

**In-app purchases:** none


### シンプル3行日記

[App page](https://appshunter.io/ios/app/3/id6791351877)

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

**In-app purchases:** none


## Frequently asked questions

### Is Three Lines free?

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

### Is シンプル3行日記 free?

シンプル3行日記 is free to download, with no in-app purchases.

### Do Three Lines or シンプル3行日記 have ads?

シンプル3行日記 shows ads; Three Lines does not.

### Which is updated more often, Three Lines or シンプル3行日記?

Three Lines ships an update every 5 weeks, and シンプル3行日記 every 3 days. Most recently, Three Lines was updated on October 3, 2026 and シンプル3行日記 on October 3, 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.*