# SleepMi vs DNT

The clearest difference is review sentiment: SleepMi at 50% against DNT's 32%. SleepMi also leads on iOS requirement (9.0 vs 15.6). DNT's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads, in-app purchases and monetization model 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, DNT every 5 weeks. Both last shipped on September 9, 2026.

## The numbers

| Metric | SleepMi | DNT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.1 (31 ratings)](https://appshunter.io/ios/app/dnt/id6504674914/reviews)** |
| Number of ratings | — | **31** |
| Positive reviews | **50.0% of reviews** | 31.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 11 MB | 25 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen LINGXI Technology Co., Ltd](https://appshunter.io/developer/957619029) | [DNT Optics, LLC](https://appshunter.io/developer/1753242385) |

## 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

**In-app purchases:** none


### DNT

[App page](https://appshunter.io/ios/app/dnt/id6504674914)

This application connects to a proprietary digital scope via Wi-Fi to provide video preview and management of recorded videos and photos. It also offers ballistic calculation settings and basic digital scope functions like video recording control and zeroing.

**Highlights:** Wi-Fi connection to digital scope, Video preview, Video recording control, Zeroing function, Recorded video/photo management, Ballistic calculation settings

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

**In-app purchases:** none


## Frequently asked questions

### Is SleepMi free?

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

### Is DNT free?

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

### Do SleepMi or DNT have ads?

Neither SleepMi nor DNT shows ads.

### Which is updated more often, SleepMi or DNT?

SleepMi ships an update every 3 months, and DNT every 5 weeks. Most recently, SleepMi was updated on September 9, 2026 and DNT on September 9, 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.*