# Sleep Tracker vs ATMÓS

Sleep Tracker and ATMÓS both sit at 4.7 stars, but that hides the real split: 100% of ATMÓS's written reviews are positive against 49% of Sleep Tracker's. ATMÓS also leads on ads (none vs shown). Sleep Tracker's advantage is ratings volume (8K vs 5). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Sleep Tracker sells 16 in-app purchases, starting at $4.99 per month and ATMÓS sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Sleep Tracker against 4.8 for ATMÓS. That said, the two scores are not equally well evidenced: Sleep Tracker has 8K ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 49% of Sleep Tracker's written reviews are positive against 100% of ATMÓS's.

Sleep Tracker ships an update every 3 weeks, ATMÓS fortnightly. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Sleep Tracker | ATMÓS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (8K ratings)](https://appshunter.io/ios/app/sleep-tracker-recorder-sound/id1551928101/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/atmos/id6761055879/reviews)** |
| Number of ratings | **8K** | 5 |
| Positive reviews | 49.2% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 205 MB | 25 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Leap Health](https://appshunter.io/developer/1687598595) | [Hiroya Tanaka](https://appshunter.io/developer/1887542375) |

## What reviewers say

### Sleep Tracker

[App page](https://appshunter.io/ios/app/sleep-tracker-recorder-sound/id1551928101)

This intelligent sleep assistant helps you understand your sleep patterns with detailed analysis and recordings of snoring or sleep talking. It offers a library of relaxation tools, including meditation and sleep stories, to improve sleep quality and features a smart alarm to help you wake up refreshed.

**Highlights:** Sleep cycle analysis, Snore and sleep talk recording, Meditation and sleep stories, Soothing sounds and white noise, Smart alarm clock, Sleep notes and mood logging, Apple Health sync

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Quarterly Premium | $9.99 | per 3 months |
| Annual Purchase | $9.99 | per year |
| Monthly Premium | $9.99 | per month |
| Annual Purchase | $11.99 | per year |
| Monthly Premium | $12.49 | per month |
| Annual Purchase | $14.99 | per year |
| Monthly Premium | $14.99 | per month |
| Annual Purchase | $17.99 | per year |
| Premium Yearly | $19.99 | per year |
| Annual Purchase | $19.99 | per year |
| Quarterly Premium | $19.99 | per 3 months |
| Annual Purchase | $23.99 | per year |
| Annual Purchase | $29.99 | per year |
| Annual Purchase | $39.99 | per year |
| Annual Purchase | $39.99 | per year |

**What reviewers like**

- 🚀 Works now and user loves it
- 👍 Great app, fully genuine sleep tracker
- 👍 Helps user sleep better
- 👍 Gives insight into sleep quality
- 👍 Accurate most of the time

**What reviewers complain about**

- 🐛 Inaccurate, doesn't record wake-ups
- 🔋 Drains phone battery
- 💰 Too many features locked behind paywall
- 🐛 Recordings are just static
- 🐛 Doesn't always record sleep accurately

**Reported bugs**

- Recordings only allow 3 free clips
- Doesn't record wake-ups and movements accurately
- Alarm doesn't always work
- Charges during free trial period

**Requested features**

- Ability to filter out white noise and record actual sleep-talk/snoring
- Option to disable bedtime feature for shift workers
- Integration with smart home devices to adjust sleep environment
- Social sleep challenges with friends
- Personalized sleep coaching


### ATMÓS

[App page](https://appshunter.io/ios/app/atmos/id6761055879)

Enhance sleep, focus, and relaxation with a personal ambient sound companion. Offers three modes: Sleep with a timer, Focus with binaural beats, and Weather with realistic nature sounds. Designed for distraction-free use.

**Highlights:** Sleep mode with auto-fade timer, Focus mode with binaural beats, Realistic weather soundscapes, High-quality ambient audio, Minimalist dark interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sleep Timer | $2.99 | one-time |


## Frequently asked questions

### Is Sleep Tracker free?

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

### Is ATMÓS free?

ATMÓS is free to download, with in-app purchases available.

### Which has better reviews, Sleep Tracker or ATMÓS?

ATMÓS is rated higher. Sleep Tracker averages 4.7 out of 5 from 8K ratings, while ATMÓS averages 4.8 from 5 ratings.

### Do Sleep Tracker or ATMÓS have ads?

Sleep Tracker shows ads; ATMÓS does not.

### Which is updated more often, Sleep Tracker or ATMÓS?

Sleep Tracker ships an update every 3 weeks, and ATMÓS fortnightly. Most recently, Sleep Tracker was updated on October 25, 2026 and ATMÓS on October 10, 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.*