# MaestLog vs By Ear PRO

The clearest difference is in-app purchases: By Ear PRO at none against MaestLog's 3. MaestLog's advantage is ads (none vs shown) and update cadence (weekly vs every 3 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. MaestLog sells 3 in-app purchases, starting at $4.99 per month. By Ear PRO asks for nothing beyond the download.

MaestLog ships an update weekly, By Ear PRO every 3 months. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MaestLog | By Ear PRO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 3 months |
| Monetization | — | Paid |
| Size | 40 MB | 44 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sho Ayuba](https://appshunter.io/developer/1839930093) | [Kenichi Ando](https://appshunter.io/developer/1764800769) |

## What reviewers say

### MaestLog

[App page](https://appshunter.io/ios/app/maestlog-classical-diary/id6752569728)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $4.99 | per month |
| Premium Yearly | $39.99 | per year |
| Ad Removal | $2.99 | one-time |


### By Ear PRO

[App page](https://appshunter.io/ios/app/by-ear-pro-slow-down-notate/id6760327561)

This app helps musicians transcribe songs by automatically analyzing chords from audio. It allows for slow playback of difficult phrases and visualizes chords on a piano roll for accurate copying. Users can also create their own transcriptions from scratch.

**Highlights:** AI chord analysis from audio, Pitch-preserving slow playback, Piano roll visualization of chords, Freehand transcription with chord insertion, Project saving and loading, MIDI export

**In-app purchases:** none


## Frequently asked questions

### Is MaestLog free?

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

### Is By Ear PRO free?

By Ear PRO is free to download, with no in-app purchases.

### Do MaestLog or By Ear PRO have ads?

By Ear PRO shows ads; MaestLog does not.

### Which is updated more often, MaestLog or By Ear PRO?

MaestLog ships an update weekly, and By Ear PRO every 3 months. Most recently, MaestLog was updated on October 30, 2026 and By Ear PRO 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.*