# SleepMi vs UGREEN NAS

The clearest difference is update cadence: UGREEN NAS at monthly against SleepMi's every 3 months. UGREEN NAS also leads on device support (4 vs 2). SleepMi's advantage is iOS requirement (9.0 vs 15.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

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

SleepMi ships an update every 3 months, UGREEN NAS monthly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SleepMi | UGREEN NAS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (312 ratings)](https://appshunter.io/ios/app/ugreen-nas/id6458647408/reviews)** |
| Number of ratings | — | **312** |
| Positive reviews | 50.0% of reviews | **53.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 11 MB | 725 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen LINGXI Technology Co., Ltd](https://appshunter.io/developer/957619029) | [深圳市绿联科技股份有限公司](https://appshunter.io/developer/1489890545) |

## What reviewers say

### SleepMi

[App page](https://appshunter.io/ios/app/sleepmi/id6443874901)

This app focuses on improving sleep quality through intelligent wearable devices and comprehensive data analysis. It aims to leverage technology for a better sleep experience.

**Highlights:** Intelligent wearable device integration, Comprehensive sleep data showcasing, Technology-driven sleep enhancement, Improved user experience for sleep, Deep software integration

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

**In-app purchases:** none


### UGREEN NAS

[App page](https://appshunter.io/ios/app/ugreen-nas/id6458647408)

Manage your personal data across devices with this application for a UGOS Pro system. It offers comprehensive control over user access, hardware, network, and file services. Organize and access your files, photos, and media libraries efficiently with advanced features and security.

**Highlights:** User and access permission management, Hardware and network configuration, Multiple storage modes (RAID, JBOD), Intelligent file filtering and sharing, Photo and video album creation, Automated media library poster walls, Integrated virus scanning

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast and responsive
- 💡 Frequent updates and improvements
- 🔒 Secure remote access
- 🔥 Great value for money

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔋 Battery drain problems
- 🤔 Unintuitive user interface
- 🌐 Limited language support
- 🔍 Lacking advanced features

**Reported bugs**

- Crashes when uploading large files
- Sync issues causing data loss
- Remote access not working as expected
- Incompatibility with certain devices/OSes
- Media player bugs (audio/video desync, choppy playback)

**Requested features**

- Dedicated photo/video viewer app for Apple TV
- Ability to edit metadata for media files
- Integration with Files app for seamless storage
- Dark mode option
- Improved media playback performance


## Frequently asked questions

### Is SleepMi free?

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

### Is UGREEN NAS free?

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

### Do SleepMi or UGREEN NAS have ads?

Neither SleepMi nor UGREEN NAS shows ads.

### Which is updated more often, SleepMi or UGREEN NAS?

SleepMi ships an update every 3 months, and UGREEN NAS monthly. Most recently, SleepMi was updated on October 6, 2026 and UGREEN NAS on October 16, 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.*