# Flight Rest II vs Shift Work Calendar

The clearest difference is ads: Flight Rest II at none against Shift Work Calendar's shown. Shift Work Calendar's advantage is update cadence (every 9 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Flight Rest II sells 1 in-app purchase, starting at $9.99 per year and Shift Work Calendar sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Flight Rest II ships an update monthly, Shift Work Calendar every 9 days. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Flight Rest II | Shift Work Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 9 days** |
| Size | 9 MB | 134 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Jose Villarroel Cuevas](https://appshunter.io/developer/558476272) | [Salomo Interiors S.L.](https://appshunter.io/developer/1688530007) |

## What reviewers say

### Flight Rest II

[App page](https://appshunter.io/ios/app/flight-rest-ii/id1523364841)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscripcion Autorenovable | $9.99 | per year |


### Shift Work Calendar

[App page](https://appshunter.io/ios/app/shift-work-calendar-simple/id6751168161)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Premium | $1.99 | one-time |
| Unlock All | $1.99 | one-time |
| Unlock All + Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Flight Rest II free?

Flight Rest II is free to download, with in-app purchases available.

### Is Shift Work Calendar free?

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

### Do Flight Rest II or Shift Work Calendar have ads?

Shift Work Calendar shows ads; Flight Rest II does not.

### Which is updated more often, Flight Rest II or Shift Work Calendar?

Flight Rest II ships an update monthly, and Shift Work Calendar every 9 days. Most recently, Flight Rest II was updated on September 25, 2026 and Shift Work Calendar on October 12, 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.*