# UniSync vs SleepDev

UniSync and SleepDev are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | UniSync | SleepDev |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 29 MB | 25 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | +4 | 4+ |
| Developer | [Shenzhen Lefu Scale Co., Ltd.](https://appshunter.io/developer/1267775489) | [高铭 张](https://appshunter.io/developer/1846527898) |

## What reviewers say

### UniSync

[App page](https://appshunter.io/ios/app/unisync/id6753839203)

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

**In-app purchases:** none


### SleepDev

[App page](https://appshunter.io/ios/app/sleepdev/id6754155833)

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

**In-app purchases:** none


## Frequently asked questions

### Is UniSync free?

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

### Is SleepDev free?

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

### Do UniSync or SleepDev have ads?

Neither UniSync nor SleepDev shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*