# Stamp Identifier vs Feather Identifier

The clearest difference is rating: Stamp Identifier at 3.7 against Feather Identifier's 3.0. Stamp Identifier also leads on iOS requirement (13.0 vs 16.0). Feather Identifier's advantage is update cadence (every 3 weeks vs every 3 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 Feather Identifier sells 2 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Stamp Identifier holds the better App Store score, 3.7 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

Stamp Identifier ships an update every 3 months, Feather Identifier every 3 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Stamp Identifier | Feather Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/stamp-identifier-ai-scanner/id6737816855/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/feather-identifier-scan-ai/id6789147337/reviews) |
| Number of ratings | **3** | 2 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 6 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Semen Sharyhin](https://appshunter.io/developer/1463206827) | [Rudenko Andrii](https://appshunter.io/developer/1858246209) |

## What reviewers say

### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier-ai-scanner/id6737816855)

Instantly identify fish species with AI. Upload a photo or take a new one to get accurate results and detailed information. Perfect for anglers, researchers, and nature enthusiasts.

**Highlights:** AI-powered identification, Photo upload for analysis, Detailed species information, Vast fish database, Ideal for anglers and researchers

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stamp Identifier Premium Week | $4.99 | per 7 days |
| Stamp Identifier Premium Year | $24.99 | per year |


### Feather Identifier

[App page](https://appshunter.io/ios/app/feather-identifier-scan-ai/id6789147337)

Instantly identify bird species from feather photos using advanced AI. Get detailed insights into feather characteristics, bird profiles, and distribution. Learn fascinating facts and compare similar species.

**Highlights:** Instant feather identification via photo, Detailed species recognition with confidence scores, Visual trait analysis of feather characteristics, Bird profile information and range maps, Comparison of similar bird species, AI chat for follow-up questions, Save and revisit identified feather results

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Feather Identifier Premium | $2.99 | per 7 days |
| Feather Identifier Premium | $19.99 | per year |


## Frequently asked questions

### Is Stamp Identifier free?

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

### Is Feather Identifier free?

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

### Which has better reviews, Stamp Identifier or Feather Identifier?

Stamp Identifier is rated higher. Stamp Identifier averages 3.7 out of 5 from 3 ratings, while Feather Identifier averages 3.0 from 2 ratings.

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

Neither Stamp Identifier nor Feather Identifier shows ads.

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

Stamp Identifier ships an update every 3 months, and Feather Identifier every 3 weeks. Most recently, Stamp Identifier was updated on November 4, 2026 and Feather Identifier on October 31, 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.*