# 郵便番号検索 vs Pocketbook Appendix Lite

The clearest difference is ads: 郵便番号検索 at none against Pocketbook Appendix Lite's shown. Pocketbook Appendix Lite's advantage is update cadence (every 6 months vs every 12 months). On price, review sentiment, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

郵便番号検索 ships an update every 12 months, Pocketbook Appendix Lite every 6 months. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 郵便番号検索 | Pocketbook Appendix Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (13 ratings)](https://appshunter.io/ios/app/id284721605/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 41.1% of reviews | **45.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 6 months** |
| Monetization | — | Ad-supported |
| Size | 1 MB | 7 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nii Masayuki](https://appshunter.io/developer/284721608) | [TECHNO SQUARE Inc.](https://appshunter.io/developer/416751392) |

## What reviewers say

### 郵便番号検索

[App page](https://appshunter.io/ios/app/id284721605)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is 郵便番号検索 free?

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

### Is Pocketbook Appendix Lite free?

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

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

Pocketbook Appendix Lite shows ads; 郵便番号検索 does not.

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

郵便番号検索 ships an update every 12 months, and Pocketbook Appendix Lite every 6 months. Most recently, 郵便番号検索 was updated on October 23, 2026 and Pocketbook Appendix Lite on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*