# 城印帳 vs 鉄印帳コレクター

The clearest difference is in-app purchases: 鉄印帳コレクター at none against 城印帳's 3. 鉄印帳コレクター also leads on iOS requirement (17.6 vs 26.1). 城印帳's advantage is update cadence (every 9 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. 城印帳 sells 3 in-app purchases, starting at $1.99 per month. 鉄印帳コレクター asks for nothing beyond the download.

城印帳 ships an update every 9 days, 鉄印帳コレクター every 3 months. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 城印帳 | 鉄印帳コレクター |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 198 MB | 27 MB |
| Requires iOS | 26.1 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [riku yasuda](https://appshunter.io/developer/1891393889) | [Masaya Kato](https://appshunter.io/developer/458867341) |

## What reviewers say

### 城印帳

[App page](https://appshunter.io/ios/app/id6761773123)

Collect beautiful digital castle seals by visiting historical Japanese castles. Earn rare seals through repeated visits and track your journey with a visually appealing, traditional Japanese design. Features include GPS check-ins, a timeline of your visits, and map integration.

**Highlights:** GPS-based castle check-ins, Collect digital castle seals, Tiered rarity for seals (Normal, Silver, Gold), Visit history timeline, Map view of visited/unvisited castles, Data export (CSV, JSON, image), Home screen widget support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 城印帳プレミアム 月額プラン | $1.99 | per month |
| 城印帳プレミアム 年額プラン | $17.99 | per year |
| 城印帳プレミアム 買い切り | $29.99 | one-time |


### 鉄印帳コレクター

[App page](https://appshunter.io/ios/app/id6762080554)

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

**In-app purchases:** none


## Frequently asked questions

### Is 城印帳 free?

城印帳 is free to download, with in-app purchases available.

### Is 鉄印帳コレクター free?

鉄印帳コレクター is free to download, with no in-app purchases.

### Do 城印帳 or 鉄印帳コレクター have ads?

Both 城印帳 and 鉄印帳コレクター show ads.

### Which is updated more often, 城印帳 or 鉄印帳コレクター?

城印帳 ships an update every 9 days, and 鉄印帳コレクター every 3 months. Most recently, 城印帳 was updated on November 13, 2026 and 鉄印帳コレクター 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.*