# 簡易デコメ vs ThreeLinesDiary

The clearest difference is iOS requirement: 簡易デコメ at 11.0 against ThreeLinesDiary's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

簡易デコメ ships an update every 3 months, ThreeLinesDiary every 6 months. The most recent releases landed on September 29, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 簡易デコメ | ThreeLinesDiary |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | — | Ad-supported |
| Size | 18 MB | 7 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Silver Soft](https://appshunter.io/developer/554369138) | [Seiji Nagano](https://appshunter.io/developer/689628441) |

## What reviewers say

### 簡易デコメ

[App page](https://appshunter.io/ios/app/id554369135)

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

**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 簡易デコメ free?

簡易デコメ is free to download, with no in-app purchases.

### Is ThreeLinesDiary free?

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

### Do 簡易デコメ or ThreeLinesDiary have ads?

Both 簡易デコメ and ThreeLinesDiary show ads.

### Which is updated more often, 簡易デコメ or ThreeLinesDiary?

簡易デコメ ships an update every 3 months, and ThreeLinesDiary every 6 months. Most recently, 簡易デコメ was updated on September 29, 2026 and ThreeLinesDiary on September 24, 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.*