# Harmony vs In what Box?

The clearest difference is ads: In what Box? at none against Harmony's shown. Harmony's advantage is update cadence (every 6 days vs every 3 weeks) and iOS requirement (16.4 vs 18.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Harmony sells 9 in-app purchases, starting at $4.99 per 7 days and In what Box? sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Harmony ships an update every 6 days, In what Box? every 3 weeks. The most recent releases landed on November 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Harmony | In what Box? |
| --- | --- | --- |
| Price | Free | 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 | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 6 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 181 MB | 40 MB |
| Requires iOS | **16.4** | 18.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Rocapine](https://appshunter.io/developer/1755706866) | [Blom Development](https://appshunter.io/developer/1222965617) |

## What reviewers say

### Harmony

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

This app helps you understand and align your daily life with your menstrual cycle. It offers personalized guidance on nutrition, movement, and mindset, along with smart tracking and daily insights. Connect with a partner for better support and enjoy a privacy-focused experience.

**Highlights:** Cycle syncing guidance, Smart cycle tracking, Daily insights and rituals, AI lifestyle assistant, Partner connection, Privacy-focused data

**In-app purchases (9)**

| 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 Premium | $39.99 | per 3 months |
| Yearly Subscription | $49.99 | per year |
| Yearly Subscription | $59.99 | 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


### In what Box?

[App page](https://appshunter.io/ios/app/in-what-box/id6780516781)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $4.99 | per month |


## Frequently asked questions

### Is Harmony free?

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

### Is In what Box? free?

In what Box? is free to download, with in-app purchases available.

### Do Harmony or In what Box? have ads?

Harmony shows ads; In what Box? does not.

### Which is updated more often, Harmony or In what Box??

Harmony ships an update every 6 days, and In what Box? every 3 weeks. Most recently, Harmony was updated on November 7, 2026 and In what Box? 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.*