# Lune vs Chord Training Assistant

The clearest difference is in-app purchases: Lune at none against Chord Training Assistant's 3. Chord Training Assistant's advantage is update cadence (every 2 weeks vs every 41 months) and iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Chord Training Assistant sells 3 in-app purchases, starting at $1.99 per month. Lune asks for nothing beyond the download.

Lune ships an update every 41 months, Chord Training Assistant every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Lune | Chord Training Assistant |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/chord-training-assistant/id1558325872/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 237 MB | 40 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [宏岩 王](https://appshunter.io/developer/1440584986) | [世杰 宋](https://appshunter.io/developer/1558135988) |

## What reviewers say

### Lune

[App page](https://appshunter.io/ios/app/lune-private-period-tracker/id1494115565)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Chord Training Assistant

[App page](https://appshunter.io/ios/app/chord-training-assistant/id1558325872)

This app helps musicians learn and practice chords with a vast library of over 800 options. It includes a metronome, practice history tracking, and a chord library, with a VIP plan offering unlimited practice and an ad-free experience.

**Highlights:** Supports 800+ chords, Built-in metronome, Practice history and statistics, Comprehensive chord library, Dark mode support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $13.49 | per year |
| Permanent VIP | $19.99 | one-time |


## Frequently asked questions

### Is Lune free?

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

### Is Chord Training Assistant free?

Chord Training Assistant is free to download, with in-app purchases available.

### Do Lune or Chord Training Assistant have ads?

Neither Lune nor Chord Training Assistant shows ads.

### Which is updated more often, Lune or Chord Training Assistant?

Lune ships an update every 41 months, and Chord Training Assistant every 2 weeks. Most recently, Lune was updated on October 24, 2026 and Chord Training Assistant on October 24, 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.*