# StampMap vs Kanpu

StampMap and Kanpu are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. StampMap sells 5 in-app purchases, starting at $0.99 per month and Kanpu sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

StampMap ships an update weekly, Kanpu every 9 days. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | StampMap | Kanpu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (23 ratings)](https://appshunter.io/ios/app/stampmap-findgoshuinpostmark/id6502387296/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free with in-app purchases | — |
| Size | 97 MB | 122 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Lawliet Co., Ltd](https://appshunter.io/developer/1264542103) | [WCH, K.K.](https://appshunter.io/developer/1886650614) |

## What reviewers say

### StampMap

[App page](https://appshunter.io/ios/app/stampmap-findgoshuinpostmark/id6502387296)

Discover and log unique stamps from around the world, including scenic, museum, and post office stamps. Create a personal log with photos, dates, and locations to build a comprehensive stamp collection and turn each stamp into a travel memory.

**Highlights:** Discover global stamp spots, Record stamp photos, dates, and locations, Organize personal stamp collection, Build stamp album and map, Track travel journeys with stamps

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| 7-Day VIP | $0.99 | per 7 days |
| Annual VIP | $3.99 | per year |
| LifeTimeVIP(Discount) | $5.99 | one-time |
| Lifetime VIP | $12.99 | one-time |


### Kanpu

[App page](https://appshunter.io/ios/app/kanpu/id6804347637)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited receipts | $2.99 | one-time |


## Frequently asked questions

### Is StampMap free?

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

### Is Kanpu free?

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

### Do StampMap or Kanpu have ads?

Neither StampMap nor Kanpu shows ads.

### Which is updated more often, StampMap or Kanpu?

StampMap ships an update weekly, and Kanpu every 9 days. Most recently, StampMap was updated on October 6, 2026 and Kanpu on October 4, 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.*