# Intuitive Memory Calculator vs Stamp Identifier

The clearest difference is in-app purchases: Intuitive Memory Calculator at none against Stamp Identifier's 2. Intuitive Memory Calculator also leads on ratings volume (57 vs 8) and iOS requirement (12.0 vs 15.1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Stamp Identifier sells 2 in-app purchases, starting at $5.99 per 7 days. Intuitive Memory Calculator asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Intuitive Memory Calculator against 4.6 for Stamp Identifier. That said, the two scores are not equally well evidenced: Intuitive Memory Calculator has 57 ratings behind it against 8, so its average is the more settled of the two.

Intuitive Memory Calculator ships an update every 6 weeks, Stamp Identifier every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Intuitive Memory Calculator | Stamp Identifier |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (57 ratings)](https://appshunter.io/ios/app/intuitive-memory-calculator/id1380417839/reviews) | **[4.6 (8 ratings)](https://appshunter.io/ios/app/stamp-identifier-ai-scan/id6755162905/reviews)** |
| Number of ratings | **57** | 8 |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 42 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sri Dama](https://appshunter.io/developer/1468796249) | [RetainAI Limited](https://appshunter.io/developer/1836623775) |

## What reviewers say

### Intuitive Memory Calculator

[App page](https://appshunter.io/ios/app/intuitive-memory-calculator/id1380417839)

This app simplifies complex calculations by offering multiple memory slots to store and retrieve numbers. It allows for unlimited access to stored values and keeps a history of your recent computations. Easily manage multiple numbers for multistep problem-solving.

**Highlights:** Multiple memory slots, Unlimited number retrieval, Recent calculation history, Easy memory slot management, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Stamp Identifier

[App page](https://appshunter.io/ios/app/stamp-identifier-ai-scan/id6755162905)

Instantly identify stamps with AI by taking a photo. Discover their history, estimated value, and preservation tips. Chat with the AI for tailored guidance on your collection.

**Highlights:** AI-powered stamp identification, Stamp history and significance, Estimated market value, Preservation and care tips, AI chat for guidance

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

**In-app purchases (2)**

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


## Frequently asked questions

### Is Intuitive Memory Calculator free?

Intuitive Memory Calculator is free to download, with no in-app purchases.

### Is Stamp Identifier free?

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

### Which has better reviews, Intuitive Memory Calculator or Stamp Identifier?

Stamp Identifier is rated higher. Intuitive Memory Calculator averages 4.5 out of 5 from 57 ratings, while Stamp Identifier averages 4.6 from 8 ratings.

### Do Intuitive Memory Calculator or Stamp Identifier have ads?

Neither Intuitive Memory Calculator nor Stamp Identifier shows ads.

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

Intuitive Memory Calculator ships an update every 6 weeks, and Stamp Identifier every 3 weeks. Most recently, Intuitive Memory Calculator was updated on October 24, 2026 and Stamp Identifier 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.*