# Sleep Time vs Sleep Time Calc

The clearest difference is in-app purchases: Sleep Time Calc at none against Sleep Time's 10. Sleep Time Calc also leads on ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. Sleep Time sells 8 in-app purchases, starting at $4.99 per month. Sleep Time Calc asks for nothing beyond the download.

## The numbers

| Metric | Sleep Time | Sleep Time Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5.4K ratings)](https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825/reviews)** | — |
| Number of ratings | **5.4K** | — |
| Positive reviews | 75.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Freemium | — |
| Size | 165 MB | 1 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Azumio Inc.](https://appshunter.io/developer/439290207) | [Pavel Moslienko](https://appshunter.io/developer/1452430456) |

## What reviewers say

### Sleep Time

[App page](https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825)

This app helps you fall asleep, stay asleep, and wake up refreshed with advanced sleep cycle analysis and a smart alarm. It offers detailed sleep tracking, soundscapes, and integration with Apple Health.

**Highlights:** Smart alarm clock with single gesture setting, Sleep cycle analysis, Soundscapes and white noise for falling asleep, Detailed monthly and weekly sleep graphs, Apple Health integration, Instant Heart Rate integration, Cloud backup and restore

**Features:** Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per month |
| Premium | $8.99 | per month |
| Premium | $9.99 | per month |
| Premium | $9.99 | per month |
| Premium | $19.99 | per 3 months |
| Premium | $29.99 | per year |
| Premium | $29.99 | per year |
| Premium | $39.99 | per year |

**What reviewers like**

- 👍 Generally a great free app
- 👍 Accurate sleep tracking
- 👍 Gentle alarm wakeup
- 👍 Helpful for sleep insights
- 👍 Dependable app for years

**What reviewers complain about**

- 🐛 Alarm doesn't always go off
- 🔊 Loud ads that can't be closed
- 🔋 Drains battery
- 🤔 Inaccurate sleep tracking
- 🐛 Crashes and bugs after updates

**Reported bugs**

- Alarm not playing sound
- App crashes when trying to view sleep history
- Unable to change alarm time
- Sleep data not recording properly

**Requested features**

- Allow alarm to play through headphones
- Provide more sleep sound options in free version
- Add ability to manually input sleep time
- Improve ad placement and volume control


### Sleep Time Calc

[App page](https://appshunter.io/ios/app/sleep-time-calc/id1480080607)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Time free?

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

### Is Sleep Time Calc free?

Sleep Time Calc is free to download, with no in-app purchases.

### Do Sleep Time or Sleep Time Calc have ads?

Sleep Time shows ads; Sleep Time Calc does not.

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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.*