# SleepSync vs Sleep Aid

The clearest difference is rating: SleepSync at 3.7 against Sleep Aid's 1.0. SleepSync also leads on in-app purchases (none vs 1). Sleep Aid's advantage is ads (none vs shown) and iOS requirement (11.0 vs 16.0). On price, ratings volume and device support there is nothing between them.

Both are free to download. Sleep Aid sells 1 in-app purchase, starting at $3.99 per month. SleepSync asks for nothing beyond the download.

SleepSync holds the better App Store score, 3.7 against 1.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

## The numbers

| Metric | SleepSync | Sleep Aid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/sleepsync-sleep-calculator/id6479617244/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/sleep-aid-for-shift-workers/id6504048232/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Daily |
| Monetization | **Ad-supported** | Subscription |
| Size | 10 MB | 27 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [Tunde Alao](https://appshunter.io/developer/957218204) |

## What reviewers say

### SleepSync

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

Optimize your sleep cycles to wake up feeling refreshed. This app calculates your ideal bedtime and wake-up time based on sleep science, offering insights into deep sleep and REM stages. Enjoy a user-friendly interface designed for a better night's rest.

**Highlights:** Personalized sleep schedule, Deep sleep and REM analysis, Intuitive sleep calculator, Advanced sleep cycle tracking, User-friendly interface, Privacy focused

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

**In-app purchases:** none


### Sleep Aid

[App page](https://appshunter.io/ios/app/sleep-aid-for-shift-workers/id6504048232)

This app helps shift workers optimize their sleep schedules using scientific recommendations. It provides personalized sleep and coffee timing advice, and syncs with your work calendar for seamless planning. Improve your well-being with a consistent and restorative sleep cycle.

**Highlights:** Personalized sleep recommendations, Coffee timing tips, Work calendar sync, Health-optimized scheduling, Scientifically backed advice, User-friendly design

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| US | $3.99 | per month |


## Frequently asked questions

### Is SleepSync free?

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

### Is Sleep Aid free?

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

### Which has better reviews, SleepSync or Sleep Aid?

SleepSync is rated higher. SleepSync averages 3.7 out of 5 from 3 ratings, while Sleep Aid averages 1.0 from 2 ratings.

### Do SleepSync or Sleep Aid have ads?

SleepSync shows ads; Sleep Aid 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.*