# Lesson AI vs MU

The clearest difference is in-app purchases: Lesson AI at none against MU's 4. Lesson AI also leads on iOS requirement (13.0 vs 15.1). MU's advantage is update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. MU sells 4 one-off in-app purchases. Lesson AI asks for nothing beyond the download.

Lesson AI ships an update every 2 months, MU every 4 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Lesson AI | MU |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 90.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 40 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [LOOINSOFT](https://appshunter.io/developer/1896244390) | [Jisoo Kim](https://appshunter.io/developer/6800597796) |

## What reviewers say

### Lesson AI

[App page](https://appshunter.io/ios/app/lesson-ai/id6770632179)

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

**In-app purchases:** none


### MU

[App page](https://appshunter.io/ios/app/munote/id6800597794)

This app automatically tracks your actual instrument playing time, excluding pauses. It analyzes sound on-device without recording, allowing you to log practice sessions, pieces, and notes. Connect with friends and visualize your progress with shareable cards.

**Highlights:** Automatic playing time detection, Sound analysis on-device (no recording), Practice session logging, Progress tracking and calendar view, Friend connectivity, Customizable practice room and avatar

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 300 Notes | $1.99 | one-time |
| 600 Notes | $2.99 | one-time |
| 1,250 Notes | $6.99 | one-time |
| 3,000 Notes | $14.99 | one-time |


## Frequently asked questions

### Is Lesson AI free?

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

### Is MU free?

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

### Do Lesson AI or MU have ads?

Neither Lesson AI nor MU shows ads.

### Which is updated more often, Lesson AI or MU?

Lesson AI ships an update every 2 months, and MU every 4 days. Most recently, Lesson AI was updated on October 31, 2026 and MU on November 1, 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.*