# SleepSync vs MiEye

The clearest difference is ads: MiEye at none against SleepSync's shown. On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

## The numbers

| Metric | SleepSync | MiEye |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/sleepsync-sleep-calculator/id6479617244/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 4 months |
| Monetization | Ad-supported | — |
| Size | 10 MB | 2 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [APPS BAY LIMITED](https://appshunter.io/developer/1599035519) | [Circadian Health Innovations](https://appshunter.io/developer/1742411829) |

## 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


### MiEye

[App page](https://appshunter.io/ios/app/mieye/id6499090691)

**In-app purchases:** none


## Frequently asked questions

### Is SleepSync free?

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

### Is MiEye free?

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

### Do SleepSync or MiEye have ads?

SleepSync shows ads; MiEye 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.*