# えらたん vs Shift Calendar

The clearest difference is ads: Shift Calendar at none against えらたん's shown. えらたん's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, update cadence 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.

えらたん ships an update every 10 days, Shift Calendar every 3 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | えらたん | Shift Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Size | 41 MB | 12 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuuki Takahashi](https://appshunter.io/developer/1805499560) | [Vu Trong](https://appshunter.io/developer/1878635735) |

## What reviewers say

### えらたん

[App page](https://appshunter.io/ios/app/id6744003209)

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

**In-app purchases:** none


### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-shift-planner/id6760978159)

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

**In-app purchases:** none


## Frequently asked questions

### Is えらたん free?

えらたん is free to download, with no in-app purchases.

### Is Shift Calendar free?

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

### Do えらたん or Shift Calendar have ads?

えらたん shows ads; Shift Calendar does not.

### Which is updated more often, えらたん or Shift Calendar?

えらたん ships an update every 10 days, and Shift Calendar every 3 weeks. Most recently, えらたん was updated on October 12, 2026 and Shift Calendar on October 18, 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.*