# Stamp vs Stamp 4.1

The clearest difference is in-app purchases: Stamp 4.1 at none against Stamp's 4. On price, update cadence, ads and device support there is nothing between them.

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

Stamp ships an update fortnightly, Stamp 4.1 every 3 weeks. The most recent releases landed on June 4, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Stamp | Stamp 4.1 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 66 MB | 24 MB |
| Requires iOS | **14.0.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stamp-Manager GmbH](https://appshunter.io/developer/1263931955) | [Liechtensteinische Post AG](https://appshunter.io/developer/1719959009) |

## What reviewers say

### Stamp

[App page](https://appshunter.io/ios/app/stamp-manager/id1263931956)

Catalog your stamp collection quickly and share it with a global community for appraisals. Get estimates from thousands of users or opt for professional appraisals for valuable items. Manage your collection and potentially sell your stamps.

**Highlights:** Catalog stamp collections quickly, Share collections with a global community, Receive community appraisals, Request professional appraisals, Estimate stamp values, Upload unlimited albums (subscription), Ad-free experience (subscription)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30-Day Premium | $4.99 | per month |
| 365-Day Premium | $45.99 | per year |
| 365-Day Premium | $50.99 | per year |
| Professional appraisal | $24.99 | one-time |


### Stamp 4.1

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

**In-app purchases:** none


## Frequently asked questions

### Is Stamp free?

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

### Is Stamp 4.1 free?

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

### Do Stamp or Stamp 4.1 have ads?

Both Stamp and Stamp 4.1 show ads.

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

Stamp ships an update fortnightly, and Stamp 4.1 every 3 weeks. Most recently, Stamp was updated on June 4, 2026 and Stamp 4.1 on September 7, 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.*