# Aggersborg vs Stamp Identifier

The clearest difference is in-app purchases: Aggersborg at none against Stamp Identifier's 2. Aggersborg also leads on iOS requirement (11.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Stamp Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. Aggersborg asks for nothing beyond the download.

Aggersborg ships an update every 4 months, Stamp Identifier every 5 months. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Aggersborg | Stamp Identifier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 5 months |
| Size | 148 MB | 49 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vesthimmerlands Museum](https://appshunter.io/developer/1250361108) | [Roman Pieskov](https://appshunter.io/developer/1758891658) |

## What reviewers say

### Aggersborg

[App page](https://appshunter.io/ios/app/aggersborg/id1250361109)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier-stampium/id6760766810)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Week | $4.99 | per 7 days |
| Premium 1 Year | $29.99 | per year |


## Frequently asked questions

### Is Aggersborg free?

Aggersborg 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 Aggersborg or Stamp Identifier have ads?

Neither Aggersborg nor Stamp Identifier shows ads.

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

Aggersborg ships an update every 4 months, and Stamp Identifier every 5 months. Most recently, Aggersborg was updated on October 26, 2026 and Stamp Identifier on October 28, 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.*