# Harmony vs HeartString

The clearest difference is in-app purchases: HeartString at none against Harmony's 1. HeartString also leads on update cadence (monthly vs every 5 months) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Harmony sells 1 in-app purchase, starting at $59.99 per year. HeartString asks for nothing beyond the download.

Harmony ships an update every 5 months, HeartString monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Harmony | HeartString |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/harmony-relationship-coach-ai/id6499267412/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Freemium | — |
| Size | 55 MB | 49 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [LIMBIC APPS YAZILIM LIMITED SIRKETI](https://appshunter.io/developer/887645424) | [CrankApps, Inc.](https://appshunter.io/developer/526250961) |

## What reviewers say

### Harmony

[App page](https://appshunter.io/ios/app/harmony-relationship-coach-ai/id6499267412)

This AI-powered coaching app helps couples improve communication and resolve conflicts. It offers personalized guidance through interactive voice sessions, practical tools, and exercises for a more harmonious relationship.

**Highlights:** AI-powered voice coaching, Personalized guidance, 24/7 availability, Confidential and secure, Practical tools and exercises

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual Subscription | $59.99 | per year |


### HeartString

[App page](https://appshunter.io/ios/app/heartstring-couples-advisor/id6755789571)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harmony free?

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

### Is HeartString free?

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

### Do Harmony or HeartString have ads?

Neither Harmony nor HeartString shows ads.

### Which is updated more often, Harmony or HeartString?

Harmony ships an update every 5 months, and HeartString monthly. Most recently, Harmony was updated on October 24, 2026 and HeartString on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*