# シフトカレンダー共有 vs ダブラクカレンダー

The clearest difference is ads: シフトカレンダー共有 at none against ダブラクカレンダー's shown. シフトカレンダー共有 also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.1 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. シフトカレンダー共有 sells 2 in-app purchases, starting at $1.99 per month and ダブラクカレンダー sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

シフトカレンダー共有 ships an update every 5 days, ダブラクカレンダー every 2 weeks. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | シフトカレンダー共有 | ダブラクカレンダー |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 34 MB | 7 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Saki Umemoto](https://appshunter.io/developer/6795706286) | [AKITO YAMAZAKI](https://appshunter.io/developer/1879795929) |

## What reviewers say

### シフトカレンダー共有

[App page](https://appshunter.io/ios/app/id6797460840)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン | $1.99 | per month |
| AI解析追加パック | $0.99 | one-time |


### ダブラクカレンダー

[App page](https://appshunter.io/ios/app/id6802880849)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ダブラクカレンダー Pro | $1.99 | one-time |


## Frequently asked questions

### Is シフトカレンダー共有 free?

シフトカレンダー共有 is free to download, with in-app purchases available.

### Is ダブラクカレンダー free?

ダブラクカレンダー is free to download, with in-app purchases available.

### Do シフトカレンダー共有 or ダブラクカレンダー have ads?

ダブラクカレンダー shows ads; シフトカレンダー共有 does not.

### Which is updated more often, シフトカレンダー共有 or ダブラクカレンダー?

シフトカレンダー共有 ships an update every 5 days, and ダブラクカレンダー every 2 weeks. Most recently, シフトカレンダー共有 was updated on October 31, 2026 and ダブラクカレンダー on November 6, 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.*