# Music Theory Intervals vs Resolve

The clearest difference is price: Music Theory Intervals at $1.99 against Resolve's $17.99. Music Theory Intervals also leads on rating (4.7 vs 4.5). Resolve's advantage is update cadence (every 9 days vs every 28 months) and iOS requirement (18.0 vs 26.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Music Theory Intervals costs $1.99 and Resolve $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Music Theory Intervals holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 3 and 6 respectively.

Music Theory Intervals ships an update every 28 months, Resolve every 9 days. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Music Theory Intervals | Resolve |
| --- | --- | --- |
| Price | **$1.99** | $17.99 |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/music-theory-intervals/id511630157/reviews)** | [4.5 (6 ratings)](https://appshunter.io/ios/app/resolve-reactive-ear-training/id6737443921/reviews) |
| Number of ratings | 3 | **6** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 43 MB | 89 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Q. Kelly](https://appshunter.io/developer/310068987) | [Trio Software Ltd](https://appshunter.io/developer/1537057701) |

## What reviewers say

### Music Theory Intervals

[App page](https://appshunter.io/ios/app/music-theory-intervals/id511630157)

This app helps musicians of all levels identify musical intervals by ear or sight. It offers various training modes, clef support, and customizable settings for practice. Results can be saved and printed for progress tracking.

**Highlights:** Interval recognition by sight and sound, Simple and compound interval training, Audio, Visual, and combined modes, Treble, Alto, Tenor, Bass clef support, Customizable interval playback, Printable Grade Book for results

**In-app purchases:** none


### Resolve

[App page](https://appshunter.io/ios/app/resolve-reactive-ear-training/id6737443921)

This app offers a structured video course and a practice tool to develop a direct connection between your ear and your instrument. It generates random chord voicings for you to play along with, enhancing musical instincts and harmonic understanding.

**Highlights:** Integrated video course and practice tool, Random harmonic voicings, Harmonic complexity slider, Train real musical instincts, Designed for use with your instrument, Complements functional ear training

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Music Theory Intervals free?

Music Theory Intervals costs $1.99, with no in-app purchases.

### Is Resolve free?

Resolve costs $17.99, with no in-app purchases.

### Which has better reviews, Music Theory Intervals or Resolve?

Music Theory Intervals is rated higher. Music Theory Intervals averages 4.7 out of 5 from 3 ratings, while Resolve averages 4.5 from 6 ratings.

### Do Music Theory Intervals or Resolve have ads?

Neither Music Theory Intervals nor Resolve shows ads.

### Which is updated more often, Music Theory Intervals or Resolve?

Music Theory Intervals ships an update every 28 months, and Resolve every 9 days. Most recently, Music Theory Intervals was updated on October 12, 2026 and Resolve on October 7, 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.*