# Quartet 6 vs Otoo

The clearest difference is price: Otoo at $6.99 against Quartet 6's $16.99. Otoo also leads on update cadence (every 6 days vs every 2 weeks). Quartet 6's advantage is chart position (#116 vs unranked). On rating, review sentiment, ratings volume and ads there is nothing between them.

Quartet 6 costs $16.99 and Otoo $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Quartet 6 against 5.0 for Otoo. Both are backed by a comparable volume of ratings — 24 and 30 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Quartet 6 ships an update every 2 weeks, Otoo every 6 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Quartet 6 | Otoo |
| --- | --- | --- |
| Price | $16.99 | **$6.99** |
| Rating | [5.0 (24 ratings)](https://appshunter.io/ios/app/quartet-6/id6753187058/reviews) | **[5.0 (30 ratings)](https://appshunter.io/ios/app/otoo/id6759285903/reviews)** |
| Number of ratings | 24 | **30** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 6 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#116** | — |
| Size | 522 MB | 64 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [UK Music Apps Ltd](https://appshunter.io/developer/579320222) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### Quartet 6

[App page](https://appshunter.io/ios/app/quartet-6/id6753187058)

**Currently charting:** #116 Top Paid · Music (US App Store)

Enhance your jazz performance with a vast library of live-recorded standards. Mute your instrument to play along, change keys, adjust tempo, and loop sections for focused practice. Features animated chord diagrams and royalty-free multitrack exports for further development.

**Highlights:** Live jazz standards play-along, Mute instrument tracks, Adjustable tempo and key, Looping practice sections, Animated chord diagrams, Multitrack audio export, Royalty-free content

**Features:** macOS Compatibility

**In-app purchases:** none


### Otoo

[App page](https://appshunter.io/ios/app/otoo/id6759285903)

This music creation app offers a unique free-form sequencer for building beats and melodies. It supports built-in sounds, sampling, and AUv3 instruments, with live performance effects and song arrangement tools.

**Highlights:** Free-form step sequencer, Single-screen workflow, Built-in sounds and sampler, AUv3 instrument support, Performance Mode effects, Export WAV, MP3, and MIDI

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quartet 6 free?

Quartet 6 costs $16.99, with no in-app purchases.

### Is Otoo free?

Otoo costs $6.99, with no in-app purchases.

### Which has better reviews, Quartet 6 or Otoo?

Otoo is rated higher. Quartet 6 averages 5.0 out of 5 from 24 ratings, while Otoo averages 5.0 from 30 ratings.

### Do Quartet 6 or Otoo have ads?

Neither Quartet 6 nor Otoo shows ads.

### Which is updated more often, Quartet 6 or Otoo?

Quartet 6 ships an update every 2 weeks, and Otoo every 6 days. Most recently, Quartet 6 was updated on October 28, 2026 and Otoo on October 28, 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.*