# Stamp Identifier vs passportbask

The clearest difference is in-app purchases: passportbask at none against Stamp Identifier's 3. passportbask also leads on ads (none vs shown) and update cadence (weekly vs every 4 weeks). Stamp Identifier's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.5). On price there is nothing between them.

Both are free to download. Stamp Identifier sells 3 in-app purchases, starting at $8.99 per month. passportbask asks for nothing beyond the download.

Stamp Identifier ships an update every 4 weeks, passportbask weekly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Stamp Identifier | passportbask |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (377 ratings)](https://appshunter.io/ios/app/stamp-identifier/id1514872924/reviews)** | — |
| Number of ratings | **377** | — |
| Positive reviews | 44.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 57 MB | 5 MB |
| Requires iOS | **13.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Amir Wald](https://appshunter.io/developer/1654387621) | [EGIN SARL](https://appshunter.io/developer/1388275033) |

## What reviewers say

### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier/id1514872924)

Identify stamps using advanced image recognition and AI. Get detailed information from a vast online catalog and organize your collection. Supports photos from your camera or gallery.

**Highlights:** AI Stamp Identification, Advanced image recognition, Stamp details from Colnect catalog, Save favorite stamps, Custom collections, Use camera or gallery

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $8.99 | per month |
| Premium | $73.99 | per year |
| Premium | $73.99 | per year |

**What reviewers like**

- 🚀 Excellent AI version
- 👍 Quick, easy to use
- 👍 Great for identification
- 👍 Fantastic App
- 👍 Works great!

**What reviewers complain about**

- 🐛 No values
- 🐛 The app it's self is ok
- 🐛 Too long
- 🐛 Updates are a fail
- 🐛 Scammerrrr

**Reported bugs**

- Camera cannot focus on stamps
- Fails to identify many common stamps
- Crashes after scanning a few stamps
- Incompatible with newer iPhone models

**Requested features**

- Add ability to search for stamps
- Add ability to add stamps to Colnect from app
- Add option to narrow search by country


### passportbask

[App page](https://appshunter.io/ios/app/passportbask/id6775494278)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stamp Identifier free?

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

### Is passportbask free?

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

### Do Stamp Identifier or passportbask have ads?

Stamp Identifier shows ads; passportbask does not.

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

Stamp Identifier ships an update every 4 weeks, and passportbask weekly. Most recently, Stamp Identifier was updated on October 27, 2026 and passportbask 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.*