# Intuitive Memory Calculator vs dapter

The clearest difference is in-app purchases: Intuitive Memory Calculator at none against dapter's 3. Intuitive Memory Calculator also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). dapter's advantage is update cadence (every 10 days vs every 6 weeks). On price and ads there is nothing between them.

Both are free to download. dapter sells 3 in-app purchases, starting at $0.99 per month. Intuitive Memory Calculator asks for nothing beyond the download.

Intuitive Memory Calculator ships an update every 6 weeks, dapter every 10 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Intuitive Memory Calculator | dapter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (57 ratings)](https://appshunter.io/ios/app/intuitive-memory-calculator/id1380417839/reviews)** | — |
| Number of ratings | **57** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 10 days** |
| Monetization | Free | — |
| Size | 11 MB | 90 MB |
| Requires iOS | **12.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sri Dama](https://appshunter.io/developer/1468796249) | [Anuar Shaidenov](https://appshunter.io/developer/6786665450) |

## 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


### dapter

[App page](https://appshunter.io/ios/app/dapter-notes-that-do-math/id6786665448)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Dapter Plus Monthly | $0.99 | per month |
| Dapter Plus Yearly | $4.99 | per year |
| Dapter Plus Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Intuitive Memory Calculator free?

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

### Is dapter free?

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

### Do Intuitive Memory Calculator or dapter have ads?

Neither Intuitive Memory Calculator nor dapter shows ads.

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

Intuitive Memory Calculator ships an update every 6 weeks, and dapter every 10 days. Most recently, Intuitive Memory Calculator was updated on November 2, 2026 and dapter 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.*