# Second Memory vs Stamp Identifier

The clearest difference is update cadence: Stamp Identifier at every 4 days against Second Memory's every 9 months. Stamp Identifier also leads on iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Second Memory sells 3 one-off in-app purchases and Stamp Identifier sells 2 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Second Memory ships an update every 9 months, Stamp Identifier every 4 days. The most recent releases landed on October 21, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Second Memory | Stamp Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (16 ratings)](https://appshunter.io/ios/app/stamp-identifier-stamp-id/id6742707724/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | — | 94.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 54 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Apptown Studio AB](https://appshunter.io/developer/330530757) | [ABD Co.](https://appshunter.io/developer/1825657293) |

## What reviewers say

### Second Memory

[App page](https://appshunter.io/ios/app/second-memory/id1476374852)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Storage of 50 extra memories | $0.99 | one-time |
| Storage of 100 extra memories | $1.99 | one-time |
| Unlimited storage of memories | $2.99 | one-time |


### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier-stamp-id/id6742707724)

Instantly identify postage stamps by taking a photo. This app uses AI to provide details like origin, value, and historical context. Organize your collection and connect with other enthusiasts.

**Highlights:** AI-powered stamp identification, Detailed stamp information (origin, value, history), Extensive global stamp database, Collection organization and sorting, Community features and expert insights, Market trends and educational resources

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $7.99 | per 7 days |
| Yearly Access | $34.99 | per year |


## Frequently asked questions

### Is Second Memory free?

Second Memory is free to download, with in-app purchases available.

### Is Stamp Identifier free?

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

### Do Second Memory or Stamp Identifier have ads?

Neither Second Memory nor Stamp Identifier shows ads.

### Which is updated more often, Second Memory or Stamp Identifier?

Second Memory ships an update every 9 months, and Stamp Identifier every 4 days. Most recently, Second Memory was updated on October 21, 2026 and Stamp Identifier on October 22, 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.*