# Harmonizer vs LoopDeLoop

The clearest difference is review sentiment: Harmonizer at 45% against LoopDeLoop's 0%. Harmonizer also leads on rating (4.1 vs 1.0) and in-app purchases (none vs 2). LoopDeLoop's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 17.0). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. LoopDeLoop sells 2 one-off in-app purchases. Harmonizer asks for nothing beyond the download.

Harmonizer holds the better App Store score, 4.1 against 1.0. That said, the two scores are not equally well evidenced: Harmonizer has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 45% of Harmonizer's written reviews are positive against 0% of LoopDeLoop's.

Harmonizer ships an update every 33 months, LoopDeLoop every 39 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Harmonizer | LoopDeLoop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (16 ratings)](https://appshunter.io/ios/app/harmonizer/id393762975/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/loopdeloop/id982766020/reviews) |
| Number of ratings | **16** | 2 |
| Positive reviews | **45.5% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 33 months** | Every 39 months |
| Monetization | Free | Free |
| Size | 3 MB | 9 MB |
| Requires iOS | 17.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew McLaughlin](https://appshunter.io/developer/1671041622) | [MoonC.mobi](https://appshunter.io/developer/953550125) |

## What reviewers say

### Harmonizer

[App page](https://appshunter.io/ios/app/harmonizer/id393762975)

This app helps infants develop perfect pitch by playing Shepard tones, aiding in pitch identity development. It also facilitates the study of chord relationships and displays the pitch of your singing.

**Highlights:** Shepard tone playback, Pitch identity development, Chord relationship study, Vocal pitch display, Infant music education

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

**In-app purchases:** none


### LoopDeLoop

[App page](https://appshunter.io/ios/app/loopdeloop/id982766020)

Record and play back musical parts to practice with a band or orchestra. Create multi-instrument songs by layering up to 8 loops per tune. Ideal for musicians to improve rhythm and timing.

**Highlights:** Record and play musical parts, Layer up to 8 loops per song, Practice with synchronized playback, Large record/play/stop button, Stereo/mono recording, Adjustable loop synchronization, Multilingual support

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MoonC.mobi: LoopDeLoop Pro | $3.99 | one-time |
| MoonC.mobi: LoopDeLoop Pro5 | $3.99 | one-time |


## Frequently asked questions

### Is Harmonizer free?

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

### Is LoopDeLoop free?

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

### Which has better reviews, Harmonizer or LoopDeLoop?

Harmonizer is rated higher. Harmonizer averages 4.1 out of 5 from 16 ratings, while LoopDeLoop averages 1.0 from 2 ratings.

### Do Harmonizer or LoopDeLoop have ads?

Neither Harmonizer nor LoopDeLoop shows ads.

### Which is updated more often, Harmonizer or LoopDeLoop?

Harmonizer ships an update every 33 months, and LoopDeLoop every 39 months. Most recently, Harmonizer was updated on October 14, 2026 and LoopDeLoop on October 3, 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.*