# Sleep Calculator Pro vs iMakeTime

The clearest difference is rating: Sleep Calculator Pro at 5.0 against iMakeTime's 4.0. Sleep Calculator Pro also leads on ratings volume (76 vs 1) and update cadence (every 7 months vs every 27 months). iMakeTime's advantage is iOS requirement (12.2 vs 16.4). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Sleep Calculator Pro holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Sleep Calculator Pro has 76 ratings behind it against 1, so its average is the more settled of the two.

Sleep Calculator Pro ships an update every 7 months, iMakeTime every 27 months. The most recent releases landed on October 21, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Sleep Calculator Pro | iMakeTime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (76 ratings)](https://appshunter.io/ios/app/sleep-calculator-pro/id1416795317/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/imaketime/id1473347192/reviews) |
| Number of ratings | **76** | 1 |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 27 months |
| Monetization | Free | Free |
| Size | 24 MB | 41 MB |
| Requires iOS | 16.4 | **12.2** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DealWatch24 LLC](https://appshunter.io/developer/1366306458) | [iMakeTime LLC](https://appshunter.io/developer/1473347191) |

## 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


### iMakeTime

[App page](https://appshunter.io/ios/app/imaketime/id1473347192)

This app helps busy individuals prioritize self-care, family, and personal growth. It offers quick, personalized tools to manage daily challenges, reduce regrets, and foster balance. Reclaim your day and feel better with just a few minutes of focused attention.

**Highlights:** Daily self-care prioritization, Regret reduction tools, Personalized balance tracking, Quick daily check-ins, Customizable goal setting, Positive habit formation

**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 iMakeTime free?

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

### Which has better reviews, Sleep Calculator Pro or iMakeTime?

Sleep Calculator Pro is rated higher. Sleep Calculator Pro averages 5.0 out of 5 from 76 ratings, while iMakeTime averages 4.0 from 1 ratings.

### Do Sleep Calculator Pro or iMakeTime have ads?

Neither Sleep Calculator Pro nor iMakeTime shows ads.

### Which is updated more often, Sleep Calculator Pro or iMakeTime?

Sleep Calculator Pro ships an update every 7 months, and iMakeTime every 27 months. Most recently, Sleep Calculator Pro was updated on October 21, 2026 and iMakeTime on October 19, 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.*