# Ear Training L3 vs Kritus

The clearest difference is price: Kritus at Free against Ear Training L3's $7.99. Ear Training L3's advantage is in-app purchases (none vs 2) and update cadence (every 5 days vs fortnightly). On ads, device support and iOS requirement there is nothing between them.

Kritus is free to download; Ear Training L3 costs $7.99 up front. Kritus sells 2 in-app purchases, starting at $8.99 per month. Ear Training L3 asks for nothing beyond the download.

Ear Training L3 ships an update every 5 days, Kritus fortnightly. Both last shipped on October 31, 2026.

## The numbers

| Metric | Ear Training L3 | Kritus |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ear-training-l3-the-moons/id6760356899/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Fortnightly |
| Monetization | Paid | — |
| Size | 32 MB | 132 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Russell](https://appshunter.io/developer/1883542878) | [Mi Lin](https://appshunter.io/developer/6793242806) |

## What reviewers say

### Ear Training L3

[App page](https://appshunter.io/ios/app/ear-training-l3-the-moons/id6760356899)

Explore and internalize chords and progressions with this interactive ear training app. Hear diatonic chords and custom progressions against a vocal drone, and test your knowledge with challenging modes. Works offline with adjustable settings.

**Highlights:** Interactive moons diagram for chords, Chord progression designer, Two test modes (Chords & Progressions), 12 tonal centers and 5 modes, Adjustable drone/chord mix balance, Works offline

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

**In-app purchases:** none


### Kritus

[App page](https://appshunter.io/ios/app/kritus/id6812365185)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kritus Serious User (Monthly) | $8.99 | per month |
| Kritus Serious User (Annual) | $49.99 | per year |


## Frequently asked questions

### Is Ear Training L3 free?

Ear Training L3 costs $7.99, with no in-app purchases.

### Is Kritus free?

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

### Do Ear Training L3 or Kritus have ads?

Neither Ear Training L3 nor Kritus shows ads.

### Which is updated more often, Ear Training L3 or Kritus?

Ear Training L3 ships an update every 5 days, and Kritus fortnightly. Most recently, Ear Training L3 was updated on October 31, 2026 and Kritus on October 31, 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.*