# Pocketbook Appendix Lite vs Guitar Chord Composer

The clearest difference is in-app purchases: Pocketbook Appendix Lite at none against Guitar Chord Composer's 1. Pocketbook Appendix Lite also leads on iOS requirement (11.0 vs 17.0). Guitar Chord Composer's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). On price and device support there is nothing between them.

Both are free to download. Guitar Chord Composer sells 1 one-off in-app purchase. Pocketbook Appendix Lite asks for nothing beyond the download.

Pocketbook Appendix Lite ships an update every 6 months, Guitar Chord Composer every 3 weeks. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Pocketbook Appendix Lite | Guitar Chord Composer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/guitar-chord-composer/id6760860421/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 7 MB | 16 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TECHNO SQUARE Inc.](https://appshunter.io/developer/416751392) | [SANWA Inc.](https://appshunter.io/developer/1878028373) |

## What reviewers say

### Pocketbook Appendix Lite

[App page](https://appshunter.io/ios/app/pocketbook-appendix-lite/id417002893)

This app provides a comprehensive collection of Japanese reference data, including postal charges, holidays, age tables, and conversion charts. It is regularly updated with new information and bug fixes to ensure accuracy and usability.

**Highlights:** Age table, Conversion table, Postal charges, Emergency numbers, Japanese holidays, Calendar, Solar system information

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

**In-app purchases:** none


### Guitar Chord Composer

[App page](https://appshunter.io/ios/app/guitar-chord-composer/id6760860421)

Instantly find, hear, and build over 370 guitar chords with multiple voicings. Explore classic progressions, compose your own songs, and utilize practice tools like a metronome and capo calculator. Includes a beginner's guide and left-handed mode.

**Highlights:** 370+ instant guitar chords, Tap to hear chord voicings, Auto-play chord progressions, Compose and save song progressions, Capo calculator, Metronome and strum patterns, Beginner's guide and practice log

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 作曲サポート Pro | $5.99 | one-time |


## Frequently asked questions

### Is Pocketbook Appendix Lite free?

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

### Is Guitar Chord Composer free?

Guitar Chord Composer is free to download, with in-app purchases available.

### Do Pocketbook Appendix Lite or Guitar Chord Composer have ads?

Pocketbook Appendix Lite shows ads; Guitar Chord Composer does not.

### Which is updated more often, Pocketbook Appendix Lite or Guitar Chord Composer?

Pocketbook Appendix Lite ships an update every 6 months, and Guitar Chord Composer every 3 weeks. Most recently, Pocketbook Appendix Lite was updated on November 1, 2026 and Guitar Chord Composer on November 5, 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.*