# TriadsPro Lite vs Key Changer

The clearest difference is device support: TriadsPro Lite at 3 against Key Changer's 1. TriadsPro Lite also leads on iOS requirement (15.6 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | TriadsPro Lite | Key Changer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/triadspro-lite/id6757892877/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Freemium | — |
| Size | 92 MB | 6 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CHRISTIAN TRUJILLO](https://appshunter.io/developer/1860950829) | [Joseph Ratterman](https://appshunter.io/developer/6777538376) |

## What reviewers say

### TriadsPro Lite

[App page](https://appshunter.io/ios/app/triadspro-lite/id6757892877)

This app helps guitarists understand and visualize triads and inversions on the fretboard. It offers interactive tools for learning chord movement and includes a game to test knowledge and build muscle memory.

**Highlights:** Visualize guitar triads instantly, Understand triad inversions, Learn through play with identification game, Clean, focused learning experience, No internet required after installation

**In-app purchases:** none


### Key Changer

[App page](https://appshunter.io/ios/app/key-changer/id6780648386)

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

**In-app purchases:** none


## Frequently asked questions

### Is TriadsPro Lite free?

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

### Is Key Changer free?

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

### Do TriadsPro Lite or Key Changer have ads?

Neither TriadsPro Lite nor Key Changer shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*