# Stamp Identifier vs Stamp & Postmark Identifier

The clearest difference is review sentiment: Stamp & Postmark Identifier at 100% against Stamp Identifier's 50%. Stamp & Postmark Identifier also leads on rating (4.3 vs 4.0). Stamp Identifier's advantage is update cadence (every 2 months vs every 9 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Stamp Identifier sells 2 in-app purchases, starting at $4.99 per 7 days and Stamp & Postmark Identifier sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Stamp & Postmark Identifier holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews point the same way: 50% of Stamp Identifier's written reviews are positive against 100% of Stamp & Postmark Identifier's.

Stamp Identifier ships an update every 2 months, Stamp & Postmark Identifier every 9 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stamp Identifier | Stamp & Postmark Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/stamp-identifier-aistamp/id6745809307/reviews) | **[4.3 (7 ratings)](https://appshunter.io/ios/app/stamp-and-postmark-identifier/id6747294999/reviews)** |
| Number of ratings | 4 | **7** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 9 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 21 MB | 130 MB |
| Requires iOS | **17.0** | 18.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sarun Wongpatcharapakorn](https://appshunter.io/developer/469774500) | [PixelPort LLC](https://appshunter.io/developer/1355467938) |

## What reviewers say

### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier-aistamp/id6745809307)

Instantly identify postage stamps using your camera or an uploaded image. This app helps collectors and enthusiasts learn about stamps, save their identification history, and sync their collection across devices via iCloud.

**Highlights:** Instant stamp identification via camera or photo, Save and review identification history, Sync stamp collection with iCloud, Detailed stamp information, Suitable for collectors and enthusiasts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro: Weekly | $4.99 | per 7 days |
| Pro: Yearly | $24.99 | per year |


### Stamp & Postmark Identifier

[App page](https://appshunter.io/ios/app/stamp-and-postmark-identifier/id6747294999)

Instantly identify stamps and postmarks using AI by simply taking a photo. Discover their history, origin, and estimated value. Organize your collection digitally and explore a vast global database.

**Highlights:** Instant stamp and postmark identification via camera, AI-powered image recognition, Historical and geographic data insights, Estimated value and rarity ratings, Digital collection management, Global database access, AI Assistant for queries

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $3.99 | per 7 days |
| Annual Premium | $29.99 | per year |


## Frequently asked questions

### Is Stamp Identifier free?

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

### Is Stamp & Postmark Identifier free?

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

### Which has better reviews, Stamp Identifier or Stamp & Postmark Identifier?

Stamp & Postmark Identifier is rated higher. Stamp Identifier averages 4.0 out of 5 from 4 ratings, while Stamp & Postmark Identifier averages 4.3 from 7 ratings.

### Do Stamp Identifier or Stamp & Postmark Identifier have ads?

Neither Stamp Identifier nor Stamp & Postmark Identifier shows ads.

### Which is updated more often, Stamp Identifier or Stamp & Postmark Identifier?

Stamp Identifier ships an update every 2 months, and Stamp & Postmark Identifier every 9 months. Most recently, Stamp Identifier was updated on October 25, 2026 and Stamp & Postmark Identifier on October 24, 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.*