# SleepSync vs OffShift

The clearest difference is in-app purchases: SleepSync at none against OffShift's 2. SleepSync also leads on iOS requirement (16.0 vs 26.1). OffShift's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. OffShift sells 2 in-app purchases, starting at $3.99 per month. SleepSync asks for nothing beyond the download.

## The numbers

| Metric | SleepSync | OffShift |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 weeks |
| Size | 10 MB | 3 MB |
| Requires iOS | **16.0** | 26.1 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [JONATHAN ALEXANDER WRIGHT](https://appshunter.io/developer/1853376663) |

## What reviewers say

### SleepSync

[App page](https://appshunter.io/ios/app/sleepsync-sleep-calculator/id6479617244)

**Features:** macOS Compatibility

**In-app purchases:** none


### OffShift

[App page](https://appshunter.io/ios/app/offshift-shift-work-sleep/id6756209316)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OffShift Pro Monthly | $3.99 | per month |
| OffShift Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is SleepSync free?

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

### Is OffShift free?

OffShift is free to download, with in-app purchases available.

### Do SleepSync or OffShift have ads?

SleepSync shows ads; OffShift does not.

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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.*