# Deep Sleep Tracker vs ScreenTime Study

The clearest difference is in-app purchases: ScreenTime Study at none against Deep Sleep Tracker's 20. ScreenTime Study also leads on ads (none vs shown). Deep Sleep Tracker's advantage is update cadence (every 9 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Deep Sleep Tracker sells 17 in-app purchases, starting at $4.99 per 7 days. ScreenTime Study asks for nothing beyond the download.

Deep Sleep Tracker ships an update every 9 days, ScreenTime Study every 3 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Deep Sleep Tracker | ScreenTime Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (89 ratings)](https://appshunter.io/ios/app/deep-sleep-tracker-best-sleep/id6473385052/reviews)** | — |
| Number of ratings | **89** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 282 MB | 65 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [深圳市喜噜科技有限公司](https://appshunter.io/developer/1686359419) | [Avicenna Research Inc.](https://appshunter.io/developer/1137173051) |

## What reviewers say

### Deep Sleep Tracker

[App page](https://appshunter.io/ios/app/deep-sleep-tracker-best-sleep/id6473385052)

This app helps you understand your sleep patterns with features like snore detection and sleep talk recording. It offers a customizable alarm and a library of sleep-inducing sounds to promote better rest and reduce stress.

**Highlights:** Sleep cycle tracking and analysis, Snore detection and risk assessment, Sleep talk recording, Customizable smart alarm clock, Extensive library of sleep sounds, Mindfulness sessions and bedtime stories

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Best Sleep Subscription | $4.99 | per 7 days |
| Best Sleep Subscription | $6.99 | per 7 days |
| Best Sleep Subscription | $6.99 | per 7 days |
| Best Sleep Subscription | $9.99 | per 7 days |
| Best Sleep week Subscription | $9.99 | per 7 days |
| Best Sleep Subscription | $12.99 | per 7 days |
| Best Sleep Subscription | $19.99 | per year |
| Best Sleep Subscription | $24.99 | per year |
| Best Sleep Subscription | $24.99 | per year |
| Best Sleep Subscription | $29.99 | per year |
| Best Sleep Subscription | $29.99 | per year |
| Best Sleep Subscription | $35.99 | per year |
| Best Sleep Subscription | $39.99 | per year |
| Best Sleep Subscription | $39.99 | per year |
| Best Sleep Subscription | $49.99 | per year |
| Best Sleep Subscription | $59.99 | per year |
| Lifetime Subscription | $59.99 | one-time |


### ScreenTime Study

[App page](https://appshunter.io/ios/app/screentime-study/id6758717536)

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

**In-app purchases:** none


## Frequently asked questions

### Is Deep Sleep Tracker free?

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

### Is ScreenTime Study free?

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

### Do Deep Sleep Tracker or ScreenTime Study have ads?

Deep Sleep Tracker shows ads; ScreenTime Study does not.

### Which is updated more often, Deep Sleep Tracker or ScreenTime Study?

Deep Sleep Tracker ships an update every 9 days, and ScreenTime Study every 3 weeks. Most recently, Deep Sleep Tracker was updated on October 13, 2026 and ScreenTime Study on September 29, 2026.

---

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