# Harmony vs Ovul Simple

The clearest difference is review sentiment: Ovul Simple at 100% against Harmony's 36%. Ovul Simple also leads on in-app purchases (none vs 18) and rating (5.0 vs 4.7). Harmony's advantage is ratings volume (10K vs 4) and update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Harmony sells 13 in-app purchases, starting at $4.99 per 7 days. Ovul Simple asks for nothing beyond the download.

Ovul Simple holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Harmony has 10K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 36% of Harmony's written reviews are positive against 100% of Ovul Simple's.

Harmony ships an update every 6 days, Ovul Simple every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Harmony | Ovul Simple |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (10K ratings)](https://appshunter.io/ios/app/harmony-cycle-syncing-period/id6736703227/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/ovul-simple/id6741582781/reviews)** |
| Number of ratings | **10K** | 4 |
| Positive reviews | 35.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 180 MB | 55 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Rocapine](https://appshunter.io/developer/1755706866) | [Ovulio Corp.](https://appshunter.io/developer/1738236160) |

## What reviewers say

### 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


### Ovul Simple

[App page](https://appshunter.io/ios/app/ovul-simple/id6741582781)

This app offers a stress-free method to track your menstrual cycle and understand your body's natural rhythms using saliva samples. Gentle AI provides insights into hormonal patterns, fertile windows, and wellness changes, especially during perimenopause.

**Highlights:** Saliva-based cycle tracking, AI-supported hormonal insights, Fertile window detection, Perimenopause wellness tracking, Intuitive pattern analysis, Daily wellness signals

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harmony free?

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

### Is Ovul Simple free?

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

### Which has better reviews, Harmony or Ovul Simple?

Ovul Simple is rated higher. Harmony averages 4.7 out of 5 from 10K ratings, while Ovul Simple averages 5.0 from 4 ratings.

### Do Harmony or Ovul Simple have ads?

Both Harmony and Ovul Simple show ads.

### Which is updated more often, Harmony or Ovul Simple?

Harmony ships an update every 6 days, and Ovul Simple every 3 weeks. Most recently, Harmony was updated on October 24, 2026 and Ovul Simple on October 24, 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.*