# Stamp 4.1 vs Stamp Identifier

The clearest difference is in-app purchases: Stamp 4.1 at none against Stamp Identifier's 4. Stamp 4.1 also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Stamp Identifier sells 4 in-app purchases, starting at $4.99 per 7 days. Stamp 4.1 asks for nothing beyond the download.

Stamp 4.1 ships an update every 3 weeks, Stamp Identifier every 2 weeks. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Stamp 4.1 | Stamp Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stamp-identifier-stampbrain/id6747396799/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 26 MB | 27 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Liechtensteinische Post AG](https://appshunter.io/developer/1719959009) | [LaBounty Labs, LLC](https://appshunter.io/developer/1708657944) |

## What reviewers say

### Stamp 4.1

[App page](https://appshunter.io/ios/app/stamp-41/id6445849795)

**Features:** Vision Pro support

**In-app purchases:** none


### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier-stampbrain/id6747396799)

Instantly identify stamps using your camera, providing details on country, issue year, and historical context. It also offers condition assessments and estimated values, helping you build and manage your stamp collection.

**Highlights:** Camera-based stamp identification, Country, year, and series details, Historical context and inscriptions, Condition assessment and estimated value, Collection building and management, Notes and detail correction

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| StampBrain Premium Monthly | $9.99 | per month |
| Premium Yearly | $39.99 | per year |
| 25 Stamp Pack | $8.99 | one-time |


## Frequently asked questions

### Is Stamp 4.1 free?

Stamp 4.1 is free to download, with no in-app purchases.

### Is Stamp Identifier free?

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

### Do Stamp 4.1 or Stamp Identifier have ads?

Neither Stamp 4.1 nor Stamp Identifier shows ads.

### Which is updated more often, Stamp 4.1 or Stamp Identifier?

Stamp 4.1 ships an update every 3 weeks, and Stamp Identifier every 2 weeks. Most recently, Stamp 4.1 was updated on November 7, 2026 and Stamp Identifier on November 12, 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.*