# Functional Harmony vs LoopTrainer

The clearest difference is rating: Functional Harmony at 4.9 against LoopTrainer's 3.7. Functional Harmony also leads on ratings volume (24 vs 3). LoopTrainer's advantage is update cadence (every 6 weeks vs every 6 months) and iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Functional Harmony holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: Functional Harmony has 24 ratings behind it against 3, so its average is the more settled of the two.

Functional Harmony ships an update every 6 months, LoopTrainer every 6 weeks. The most recent releases landed on September 21, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Functional Harmony | LoopTrainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (24 ratings)](https://appshunter.io/ios/app/functional-harmony/id1564025162/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/looptrainer/id1634854221/reviews) |
| Number of ratings | **24** | 3 |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 24 MB | 1 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dylan Shade](https://appshunter.io/developer/1564023750) | [Panittha Suwannajang](https://appshunter.io/developer/1736296879) |

## What reviewers say

### Functional Harmony

[App page](https://appshunter.io/ios/app/functional-harmony/id1564025162)

This music theory app helps users spell chords and scales by entering a root note. It also identifies intervals when two notes are provided. Learn music theory concepts quickly and easily.

**Highlights:** Spell chords, Spell scales, Identify intervals, Enter root note for chords/scales, Enter two notes for interval identification

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

**In-app purchases:** none


### LoopTrainer

[App page](https://appshunter.io/ios/app/looptrainer/id1634854221)

Learn songs by ear with this music app. It allows you to loop specific sections of songs from the Apple Music catalog, adjust playback speed, and access guitar tabs. Progressively increase song speed to master challenging parts.

**Highlights:** Loop specific song sections, Adjust playback speed, Access guitar tabs, Progressive speed training, Save loop settings, Apple Music catalog integration

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Functional Harmony free?

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

### Is LoopTrainer free?

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

### Which has better reviews, Functional Harmony or LoopTrainer?

Functional Harmony is rated higher. Functional Harmony averages 4.9 out of 5 from 24 ratings, while LoopTrainer averages 3.7 from 3 ratings.

### Do Functional Harmony or LoopTrainer have ads?

Neither Functional Harmony nor LoopTrainer shows ads.

### Which is updated more often, Functional Harmony or LoopTrainer?

Functional Harmony ships an update every 6 months, and LoopTrainer every 6 weeks. Most recently, Functional Harmony was updated on September 21, 2026 and LoopTrainer on September 18, 2026.

---

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