# 何日経った？ vs Simple ToDo Diary

The clearest difference is in-app purchases: 何日経った？ at none against Simple ToDo Diary's 1. Simple ToDo Diary's advantage is update cadence (daily vs every 16 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Simple ToDo Diary sells 1 one-off in-app purchase. 何日経った？ asks for nothing beyond the download.

何日経った？ ships an update every 16 months, Simple ToDo Diary daily. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 何日経った？ | Simple ToDo Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | **Daily** |
| Size | 4 MB | 4 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [KAZUKI KUBO](https://appshunter.io/developer/936625453) | [Kazuya Hashimoto](https://appshunter.io/developer/1857972259) |

## What reviewers say

### 何日経った？

[App page](https://appshunter.io/ios/app/id6475248021)

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

**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 何日経った？ free?

何日経った？ 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 何日経った？ or Simple ToDo Diary have ads?

Neither 何日経った？ nor Simple ToDo Diary shows ads.

### Which is updated more often, 何日経った？ or Simple ToDo Diary?

何日経った？ ships an update every 16 months, and Simple ToDo Diary daily. Most recently, 何日経った？ was updated on September 26, 2026 and Simple ToDo Diary 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.*