# Calendar ToDo vs Atode

The clearest difference is in-app purchases: Atode at none against Calendar ToDo's 2. Atode also leads on iOS requirement (17.6 vs 26.0). Calendar ToDo's advantage is update cadence (weekly vs every 3 months). 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. Atode asks for nothing beyond the download.

Calendar ToDo ships an update weekly, Atode every 3 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Calendar ToDo | Atode |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 months |
| Size | 17 MB | 2 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yugo Okugawa](https://appshunter.io/developer/1861088480) | [IBUKI YOSHIDA](https://appshunter.io/developer/1856209051) |

## 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 |


### Atode

[App page](https://appshunter.io/ios/app/atode-todo/id6761688601)

**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 Atode free?

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

### Do Calendar ToDo or Atode have ads?

Neither Calendar ToDo nor Atode shows ads.

### Which is updated more often, Calendar ToDo or Atode?

Calendar ToDo ships an update weekly, and Atode every 3 months. Most recently, Calendar ToDo was updated on October 28, 2026 and Atode on October 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.*