# Calendar ToDo vs 1分の習慣

The clearest difference is in-app purchases: 1分の習慣 at none against Calendar ToDo's 2. 1分の習慣 also leads on iOS requirement (16.4 vs 26.0). Calendar ToDo's advantage is update cadence (weekly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Calendar ToDo sells 2 in-app purchases, starting at $1.99 per month. 1分の習慣 asks for nothing beyond the download.

Calendar ToDo ships an update weekly, 1分の習慣 monthly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Calendar ToDo | 1分の習慣 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 18 MB | 46 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yugo Okugawa](https://appshunter.io/developer/1861088480) | [YUYA MASUDA](https://appshunter.io/developer/1840203331) |

## What reviewers say

### Calendar ToDo

[App page](https://appshunter.io/ios/app/calendar-todo-progress-log/id6756511434)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calendar ToDo Plus Monthly | $1.99 | per month |
| Calendar ToDo Plus Annual | $14.99 | per year |


### 1分の習慣

[App page](https://appshunter.io/ios/app/1/id6758957376)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calendar ToDo free?

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

### Is 1分の習慣 free?

1分の習慣 is free to download, with no in-app purchases.

### Do Calendar ToDo or 1分の習慣 have ads?

Neither Calendar ToDo nor 1分の習慣 shows ads.

### Which is updated more often, Calendar ToDo or 1分の習慣?

Calendar ToDo ships an update weekly, and 1分の習慣 monthly. Most recently, Calendar ToDo was updated on November 9, 2026 and 1分の習慣 on October 31, 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.*