# Stamp Identifier vs POPOVA

The clearest difference is review sentiment: POPOVA at 100% against Stamp Identifier's 0%. POPOVA also leads on in-app purchases (none vs 2) and update cadence (daily vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Stamp Identifier sells 2 in-app purchases, starting at $7.99 per 7 days. POPOVA asks for nothing beyond the download.

Stamp Identifier ships an update every 4 months, POPOVA daily. The most recent releases landed on October 10, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Stamp Identifier | POPOVA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/popova/id6792747952/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 38 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Asil Arslan](https://appshunter.io/developer/1495845191) | [Sophara Hanbery](https://appshunter.io/developer/6792747954) |

## What reviewers say

### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier/id6738039980)

Identify postage stamps using AI by taking a photo. Get details on origin, value, and unique characteristics. Ideal for collectors and enthusiasts interested in philately.

**Highlights:** AI-powered stamp identification, Detailed stamp information, Origin and value details, Unique characteristic analysis, Gateway to philately history

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | $7.99 | per 7 days |
| Annual Plan | $39.99 | per year |


### POPOVA

[App page](https://appshunter.io/ios/app/popova/id6792747952)

This app serves as a central hub for students of a math tutor. It provides access to schedules, online class links, recorded lessons, and direct communication with the instructor. Users can manage their subscriptions and choose between two visual themes.

**Highlights:** Lesson schedule with countdown, Direct online class entry, Recordings of past lessons, Chat with tutor (text, voice, video), Subscription and trial period management, Customizable themes

**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 POPOVA free?

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

### Do Stamp Identifier or POPOVA have ads?

Neither Stamp Identifier nor POPOVA shows ads.

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

Stamp Identifier ships an update every 4 months, and POPOVA daily. Most recently, Stamp Identifier was updated on October 10, 2026 and POPOVA on October 29, 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.*