# sleepytime calculator vs ATMÓS

sleepytime calculator and ATMÓS are too close to call on the numbers: across 9 compared parameters — price, rating, review sentiment and ratings volume 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. sleepytime calculator sells 1 one-off in-app purchase 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 — 4.9 for sleepytime calculator against 4.8 for ATMÓS. Both are backed by a comparable volume of ratings — 14 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | sleepytime calculator | ATMÓS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (14 ratings)](https://appshunter.io/ios/app/sleepytime-calculator/id6445925006/reviews)** | [4.8 (5 ratings)](https://appshunter.io/ios/app/atmos/id6761055879/reviews) |
| Number of ratings | **14** | 5 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 209 MB | 25 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Artur Pokusin](https://appshunter.io/developer/1674907965) | [Hiroya Tanaka](https://appshunter.io/developer/1887542375) |

## What reviewers say

### sleepytime calculator

[App page](https://appshunter.io/ios/app/sleepytime-calculator/id6445925006)

This app helps you determine optimal sleep and wake times to feel more rested. It calculates ideal bedtimes based on your desired sleep duration and natural sleep cycles.

**Highlights:** Suggests ideal bedtimes, Calculates wake-up times, Based on desired sleep length, Utilizes sleep cycles, Improves sleep quality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Dreams | $9.99 | one-time |


### 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 sleepytime calculator free?

sleepytime calculator 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, sleepytime calculator or ATMÓS?

sleepytime calculator is rated higher. sleepytime calculator averages 4.9 out of 5 from 14 ratings, while ATMÓS averages 4.8 from 5 ratings.

### Do sleepytime calculator or ATMÓS have ads?

Neither sleepytime calculator nor ATMÓS shows ads.

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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.*