# PostStreak vs Shift Calendar

The clearest difference is ads: PostStreak at none against Shift Calendar's shown. PostStreak also leads on update cadence (every 4 days vs every 5 weeks) and iOS requirement (13.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PostStreak ships an update every 4 days, Shift Calendar every 5 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PostStreak | Shift Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Size | 24 MB | 39 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [mingyu sim](https://appshunter.io/developer/1784996928) | [Berke YILMAZ](https://appshunter.io/developer/6779793160) |

## What reviewers say

### PostStreak

[App page](https://appshunter.io/ios/app/poststreak/id6756211243)

**Features:** macOS Compatibility

**In-app purchases:** none


### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-work-roster/id6779793158)

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

**In-app purchases:** none


## Frequently asked questions

### Is PostStreak free?

PostStreak 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 PostStreak or Shift Calendar have ads?

Shift Calendar shows ads; PostStreak does not.

### Which is updated more often, PostStreak or Shift Calendar?

PostStreak ships an update every 4 days, and Shift Calendar every 5 weeks. Most recently, PostStreak was updated on October 28, 2026 and Shift Calendar 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.*