# Sleep Cycle Tracker vs Sleep Cycle Simple Calculator

The clearest difference is in-app purchases: Sleep Cycle Simple Calculator at none against Sleep Cycle Tracker's 3. Sleep Cycle Simple Calculator also leads on update cadence (every 2 days vs monthly). Sleep Cycle Tracker's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Sleep Cycle Tracker sells 3 in-app purchases, starting at $1.99 per month. Sleep Cycle Simple Calculator asks for nothing beyond the download.

Sleep Cycle Tracker ships an update monthly, Sleep Cycle Simple Calculator every 2 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sleep Cycle Tracker | Sleep Cycle Simple Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sleep-cycle-tracker-harmoni/id6498994045/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 104 MB | 31 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ready Apps LLC (WA)](https://appshunter.io/developer/1703345490) | [Marius Kuzminskas](https://appshunter.io/developer/1859767355) |

## What reviewers say

### Sleep Cycle Tracker

[App page](https://appshunter.io/ios/app/sleep-cycle-tracker-harmoni/id6498994045)

This app offers a unique blend of curated sounds, compelling stories, and soothing music to alleviate stress, reduce anxiety, and enhance sleep quality. It provides a user-friendly interface with personalized relaxation experiences and unguided relaxation paths.

**Highlights:** Curated sound library, Bedtime stories, Calming music, User-friendly design, Customizable playlists, Unguided relaxation paths

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $9.99 | per year |
| Lifetime subscription | $19.99 | one-time |


### Sleep Cycle Simple Calculator

[App page](https://appshunter.io/ios/app/sleep-cycle-simple-calculator/id6756280217)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sleep Cycle Tracker free?

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

### Is Sleep Cycle Simple Calculator free?

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

### Do Sleep Cycle Tracker or Sleep Cycle Simple Calculator have ads?

Neither Sleep Cycle Tracker nor Sleep Cycle Simple Calculator shows ads.

### Which is updated more often, Sleep Cycle Tracker or Sleep Cycle Simple Calculator?

Sleep Cycle Tracker ships an update monthly, and Sleep Cycle Simple Calculator every 2 days. Most recently, Sleep Cycle Tracker was updated on October 28, 2026 and Sleep Cycle Simple Calculator on October 25, 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.*