# Stamp Identifier Value Checker vs Postcard Archive

The clearest difference is update cadence: Postcard Archive at every 5 days against Stamp Identifier Value Checker's every 4 months. Postcard Archive also leads on device support (3 vs 1). Stamp Identifier Value Checker's advantage is iOS requirement (16.6 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Stamp Identifier Value Checker sells 2 in-app purchases, starting at $5.99 per 7 days and Postcard Archive sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Stamp Identifier Value Checker ships an update every 4 months, Postcard Archive every 5 days. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Stamp Identifier Value Checker | Postcard Archive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/postcard-archive/id6768242841/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Free |
| Size | 22 MB | 87 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aliaksei Marozau](https://appshunter.io/developer/1796790486) | [Rizk Corsight, LLC](https://appshunter.io/developer/1896065289) |

## What reviewers say

### Stamp Identifier Value Checker

[App page](https://appshunter.io/ios/app/stamp-identifier-value-checker/id6754553752)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stamp Identifier - Weekly Plan | $5.99 | per 7 days |
| Stamp Identifier - Annual Plan | $29.99 | per year |


### Postcard Archive

[App page](https://appshunter.io/ios/app/postcard-archive/id6768242841)

A private, offline digital catalog for postcard collectors. It allows you to photograph both sides of your cards, automatically extract information from handwritten messages using on-device OCR, and classify the card's era. Organize your entire collection with detailed fields and explore it through various browsing and search options.

**Highlights:** Two-sided card capture, On-device OCR for handwritten messages, Automatic era classification, Detailed collection record fields, Relationship Timeline, Offline, private storage, CSV/JSON archive export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | Free | one-time |
| Postcard Archive Pro | $1.99 | one-time |
| Postcard Archive Full Access | $1.99 | one-time |


## Frequently asked questions

### Is Stamp Identifier Value Checker free?

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

### Is Postcard Archive free?

Postcard Archive is free to download, with in-app purchases available.

### Do Stamp Identifier Value Checker or Postcard Archive have ads?

Neither Stamp Identifier Value Checker nor Postcard Archive shows ads.

### Which is updated more often, Stamp Identifier Value Checker or Postcard Archive?

Stamp Identifier Value Checker ships an update every 4 months, and Postcard Archive every 5 days. Most recently, Stamp Identifier Value Checker was updated on October 10, 2026 and Postcard Archive on October 21, 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.*