# Find JP zip code vs Gun Leash

The clearest difference is review sentiment: Find JP zip code at 100% against Gun Leash's 50%. Find JP zip code also leads on iOS requirement (7.0 vs 15.0). Gun Leash's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 6 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Find JP zip code sells 1 one-off in-app purchase. Gun Leash asks for nothing beyond the download.

Find JP zip code ships an update every 6 months, Gun Leash every 2 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Find JP zip code | Gun Leash |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/gun-leash/id1626287836/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | **100.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 5 MB | 26 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Mitsuhiro Shirai](https://appshunter.io/developer/602643484) | [GUNNY, Inc](https://appshunter.io/developer/794921080) |

## What reviewers say

### Find JP zip code

[App page](https://appshunter.io/ios/app/find-jp-zip-code-zipnofinder/id778634221)

Quickly find Japanese postal codes and addresses offline. Search by postal number or address components using Kanji or Yomigana. Supports advanced AND searches and integrates with map applications.

**Highlights:** Offline postal code search, Address search by Kanji/Yomigana, Company address data, Substring and partial matching, AND search functionality, Copy to clipboard, Map integration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Delete ads | $0.99 | one-time |


### Gun Leash

[App page](https://appshunter.io/ios/app/gun-leash/id1626287836)

This app uses a connected beacon to alert you if you leave your handgun behind. It focuses on proximity alerts to prevent loss or theft, without using GPS tracking or reporting your location.

**Highlights:** Proximity alerts, Beacon integration, Theft prevention, Loss prevention, Private notifications

**In-app purchases:** none


## Frequently asked questions

### Is Find JP zip code free?

Find JP zip code is free to download, with in-app purchases available.

### Is Gun Leash free?

Gun Leash is free to download, with no in-app purchases.

### Do Find JP zip code or Gun Leash have ads?

Neither Find JP zip code nor Gun Leash shows ads.

### Which is updated more often, Find JP zip code or Gun Leash?

Find JP zip code ships an update every 6 months, and Gun Leash every 2 months. Most recently, Find JP zip code was updated on October 8, 2026 and Gun Leash on October 13, 2026.

---

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