# Sleep Calculator Pro vs Sleep Time Calc

The clearest difference is iOS requirement: Sleep Time Calc at 14.0 against Sleep Calculator Pro's 16.4. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Sleep Calculator Pro | Sleep Time Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (76 ratings)](https://appshunter.io/ios/app/sleep-calculator-pro/id1416795317/reviews)** | — |
| Number of ratings | **76** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free | — |
| Size | 24 MB | 1 MB |
| Requires iOS | 16.4 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DealWatch24 LLC](https://appshunter.io/developer/1366306458) | [Pavel Moslienko](https://appshunter.io/developer/1452430456) |

## What reviewers say

### Sleep Calculator Pro

[App page](https://appshunter.io/ios/app/sleep-calculator-pro/id1416795317)

This app helps you determine the optimal times to go to sleep and wake up to align with your natural 90-minute sleep cycles. It calculates ideal bedtime based on your desired wake-up time and vice-versa, promoting a more rested feeling upon waking. It also includes features for tracking sleep phases and a smart alarm to wake you gently.

**Highlights:** Calculate best time to go to sleep, Calculate best time to wake up, Track and analyze sleep cycles, Identify light, deep, and REM sleep phases, Smart alarm for gentle wake-ups, Bedtime notifications

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Calculator Pro free?

Sleep Calculator Pro is free to download, with no in-app purchases.

### Is Sleep Time Calc free?

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

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

Neither Sleep Calculator Pro nor Sleep Time Calc 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.*