# Pocketbook Appendix Lite vs 郵便番号検索アプリ

The clearest difference is iOS requirement: Pocketbook Appendix Lite at 11.0 against 郵便番号検索アプリ's 15.0. On price, update cadence, 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.

Pocketbook Appendix Lite ships an update every 6 months, 郵便番号検索アプリ every 11 months. The most recent releases landed on August 7, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Pocketbook Appendix Lite | 郵便番号検索アプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 6 months** | Every 11 months |
| Monetization | Ad-supported | — |
| Size | 7 MB | 36 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TECHNO SQUARE inc.](https://appshunter.io/developer/416751392) | [Yutaka Kamoto](https://appshunter.io/developer/1459379625) |

## 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


### 郵便番号検索アプリ

[App page](https://appshunter.io/ios/app/id1473468309)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pocketbook Appendix Lite free?

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

### Is 郵便番号検索アプリ free?

郵便番号検索アプリ is free to download, with no in-app purchases.

### Do Pocketbook Appendix Lite or 郵便番号検索アプリ have ads?

Both Pocketbook Appendix Lite and 郵便番号検索アプリ show ads.

### Which is updated more often, Pocketbook Appendix Lite or 郵便番号検索アプリ?

Pocketbook Appendix Lite ships an update every 6 months, and 郵便番号検索アプリ every 11 months. Most recently, Pocketbook Appendix Lite was updated on August 7, 2026 and 郵便番号検索アプリ on September 19, 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.*