# 簡単に行動を記録 vs ThreeLinesDiary

The clearest difference is ads: 簡単に行動を記録 at none against ThreeLinesDiary's shown. 簡単に行動を記録 also leads on iOS requirement (12.0 vs 15.0). ThreeLinesDiary's advantage is review sentiment (75% vs 57%). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 簡単に行動を記録 | ThreeLinesDiary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 57.5% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | Every 6 months |
| Monetization | — | Ad-supported |
| Size | 16 MB | 7 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masato Takahashi](https://appshunter.io/developer/767386750) | [Seiji Nagano](https://appshunter.io/developer/689628441) |

## What reviewers say

### 簡単に行動を記録

[App page](https://appshunter.io/ios/app/id812791884)

**In-app purchases:** none


### ThreeLinesDiary

[App page](https://appshunter.io/ios/app/threelinesdiary/id1161808671)

A simple journaling app designed to improve sleep quality by encouraging users to write a three-line diary entry before bed. It allows for photo attachments and provides daily reminders to help build a consistent writing habit.

**Highlights:** Three-line daily journal entries, Attach photos to entries, Daily writing reminders, Improve sleep quality, Simple and intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 簡単に行動を記録 free?

簡単に行動を記録 is free to download, with no in-app purchases.

### Is ThreeLinesDiary free?

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

### Do 簡単に行動を記録 or ThreeLinesDiary have ads?

ThreeLinesDiary shows ads; 簡単に行動を記録 does not.

### Which is updated more often, 簡単に行動を記録 or ThreeLinesDiary?

簡単に行動を記録 ships an update every 6 months, and ThreeLinesDiary every 6 months. Most recently, 簡単に行動を記録 was updated on October 20, 2026 and ThreeLinesDiary on October 10, 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.*