# Sleep Cycle Tracker vs Sleep Harmony

The clearest difference is in-app purchases: Sleep Harmony at none against Sleep Cycle Tracker's 3. Sleep Cycle Tracker's advantage is update cadence (monthly vs every 7 months) and iOS requirement (13.0 vs 15.6). 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 Harmony asks for nothing beyond the download.

Sleep Cycle Tracker ships an update monthly, Sleep Harmony every 7 months. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Sleep Cycle Tracker | Sleep Harmony |
| --- | --- | --- |
| 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 7 months |
| Monetization | Freemium | — |
| Size | 104 MB | 144 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ready Apps LLC (WA)](https://appshunter.io/developer/1703345490) | [Ergomotion, Inc.](https://appshunter.io/developer/765697157) |

## 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 Harmony

[App page](https://appshunter.io/ios/app/sleep-harmony/id6743784636)

**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 Harmony free?

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

### Do Sleep Cycle Tracker or Sleep Harmony have ads?

Neither Sleep Cycle Tracker nor Sleep Harmony shows ads.

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

Sleep Cycle Tracker ships an update monthly, and Sleep Harmony every 7 months. Most recently, Sleep Cycle Tracker was updated on June 10, 2026 and Sleep Harmony on September 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.*