# Kotobee Reader vs Music Theory 101

The clearest difference is rating: Music Theory 101 at 4.8 against Kotobee Reader's 3.6. Music Theory 101 also leads on review sentiment (82% vs 50%) and update cadence (every 5 days vs every 2 months). Kotobee Reader's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, 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.

Music Theory 101 holds the better App Store score, 4.8 against 3.6. Both are backed by a comparable volume of ratings — 22 and 64 respectively. Written reviews point the same way: 50% of Kotobee Reader's written reviews are positive against 82% of Music Theory 101's.

Kotobee Reader ships an update every 2 months, Music Theory 101 every 5 days. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Kotobee Reader | Music Theory 101 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (22 ratings)](https://appshunter.io/ios/app/kotobee-reader/id1109764395/reviews) | **[4.8 (64 ratings)](https://appshunter.io/ios/app/music-theory-101-study-course/id1629995579/reviews)** |
| Number of ratings | 22 | **64** |
| Positive reviews | 50.0% of reviews | **82.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | Free |
| Size | 14 MB | 78 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vijua](https://appshunter.io/developer/843229887) | [Poesie Inc](https://appshunter.io/developer/1505664474) |

## What reviewers say

### Kotobee Reader

[App page](https://appshunter.io/ios/app/kotobee-reader/id1109764395)

This app provides an ad-free digital reading experience for interactive ebooks. It supports EPUB 3.0, offers note-taking, highlighting, bookmarking, and text-to-speech functionalities. Access a free digital library for offline reading.

**Highlights:** EPUB 3.0 support, Note-taking and highlighting, Bookmarking, Aggregate annotations to PDF, Offline reading, Text-to-speech, Google lookup

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

**In-app purchases:** none


### Music Theory 101

[App page](https://appshunter.io/ios/app/music-theory-101-study-course/id1629995579)

An interactive music theory training app covering classical fundamentals. It features 19 units with audio, exercises, and definitions, mirroring AP Music Theory exam curriculum. Practice skills with over 90 exercise types.

**Highlights:** Interactive music theory course, 19 comprehensive units, Audio samples and key definitions, Skill practice exercises, AP Music Theory exam curriculum, Over 90 exercise types, Aural recognition and dictation

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

**In-app purchases:** none


## Frequently asked questions

### Is Kotobee Reader free?

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

### Is Music Theory 101 free?

Music Theory 101 is free to download, with no in-app purchases.

### Which has better reviews, Kotobee Reader or Music Theory 101?

Music Theory 101 is rated higher. Kotobee Reader averages 3.6 out of 5 from 22 ratings, while Music Theory 101 averages 4.8 from 64 ratings.

### Do Kotobee Reader or Music Theory 101 have ads?

Neither Kotobee Reader nor Music Theory 101 shows ads.

### Which is updated more often, Kotobee Reader or Music Theory 101?

Kotobee Reader ships an update every 2 months, and Music Theory 101 every 5 days. Most recently, Kotobee Reader was updated on October 10, 2026 and Music Theory 101 on October 17, 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.*