# Check Habit vs Harmony

The clearest difference is price: Harmony at Free against Check Habit's $0.99. Harmony also leads on update cadence (every 6 days vs every 3 months). Check Habit's advantage is in-app purchases (none vs 18) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Harmony is free to download; Check Habit costs $0.99 up front. Harmony sells 13 in-app purchases, starting at $4.99 per 7 days. Check Habit asks for nothing beyond the download.

Check Habit ships an update every 3 months, Harmony every 6 days. Both last shipped on October 26, 2026.

## The numbers

| Metric | Check Habit | Harmony |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.7 (10K ratings)](https://appshunter.io/ios/app/harmony-cycle-syncing-period/id6736703227/reviews)** |
| Number of ratings | — | **10K** |
| Positive reviews | — | 35.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 180 MB |
| Requires iOS | 16.4 | 16.4 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SHUJI FUKUNAGA](https://appshunter.io/developer/469076836) | [Rocapine](https://appshunter.io/developer/1755706866) |

## What reviewers say

### Check Habit

[App page](https://appshunter.io/ios/app/check-habit/id469076833)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Harmony

[App page](https://appshunter.io/ios/app/harmony-cycle-syncing-period/id6736703227)

This app helps you understand and sync your lifestyle with your natural body rhythms. It offers personalized guidance for energy, meals, movement, and mindset based on your cycle phase. It also includes smart tracking, daily insights, and an AI assistant for daily organization and self-awareness.

**Highlights:** Cycle Syncing Guidance, Smart Cycle Tracking, Daily Insights & Rituals, AI Lifestyle Assistant, Partner Connection, Privacy-Focused Data

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $4.99 | per 7 days |
| Harmony Monthly Plan | $9.99 | per month |
| Monthly Subscription | $14.99 | per month |
| Harmony Premium Pan | $14.99 | per month |
| Harmony Yearly Plan | $34.99 | per year |
| Yearly Premium | $34.99 | per year |
| Harmony Yearly Plan | $34.99 | per year |
| Harmony Premium | $39.99 | per 3 months |
| Premium Subscription | $39.99 | per 6 months |
| Yearly Subscription | $49.99 | per year |
| Yearly Subscription | $59.99 | per year |
| Harmony Yearly Plan | $79.99 | per year |
| Harmony Yearly Plan | $89.99 | per year |

**What reviewers like**

- 👍 Empowering experience
- 🚀 Easy to use
- 💡 Personalized insights
- 👍 Helpful for managing cycle
- 👍 Informative and useful

**What reviewers complain about**

- 🐛 Inaccurate calendar and period tracking
- 💰 Paid subscription required
- 🔧 Needs more customization options
- 👎 Issues with selecting period dates

**Reported bugs**

- Calendar issues with incorrect period dates
- Inability to select accurate period dates

**Requested features**

- More community features
- Longer meditation exercises
- Additional recipes and meal plans


## Frequently asked questions

### Is Check Habit free?

Check Habit costs $0.99, with no in-app purchases.

### Is Harmony free?

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

### Do Check Habit or Harmony have ads?

Harmony shows ads; Check Habit does not.

### Which is updated more often, Check Habit or Harmony?

Check Habit ships an update every 3 months, and Harmony every 6 days. Most recently, Check Habit was updated on October 26, 2026 and Harmony on October 26, 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.*