# SHIMA vs Simple ToDo Diary

The clearest difference is in-app purchases: SHIMA at none against Simple ToDo Diary's 1. SHIMA also leads on iOS requirement (13.0 vs 18.6). Simple ToDo Diary's advantage is update cadence (daily vs every 15 months). On price, ads and device support there is nothing between them.

Both are free to download. Simple ToDo Diary sells 1 one-off in-app purchase. SHIMA asks for nothing beyond the download.

SHIMA ships an update every 15 months, Simple ToDo Diary daily. The most recent releases landed on October 17, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | SHIMA | Simple ToDo Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Daily** |
| Size | 3 MB | 4 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [shingo kamei](https://appshunter.io/developer/1256845824) | [Kazuya Hashimoto](https://appshunter.io/developer/1857972259) |

## What reviewers say

### SHIMA

[App page](https://appshunter.io/ios/app/shima/id1175985016)

**In-app purchases:** none


### Simple ToDo Diary

[App page](https://appshunter.io/ios/app/simple-todo-diary/id6756016949)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告を非表示にする | $1.99 | one-time |


## Frequently asked questions

### Is SHIMA free?

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

### Is Simple ToDo Diary free?

Simple ToDo Diary is free to download, with in-app purchases available.

### Do SHIMA or Simple ToDo Diary have ads?

Neither SHIMA nor Simple ToDo Diary shows ads.

### Which is updated more often, SHIMA or Simple ToDo Diary?

SHIMA ships an update every 15 months, and Simple ToDo Diary daily. Most recently, SHIMA was updated on October 17, 2026 and Simple ToDo Diary on November 9, 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.*