# MemoryMagic vs ∫dx

The clearest difference is in-app purchases: MemoryMagic at none against ∫dx's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ∫dx sells 2 in-app purchases, starting at $4.99 per month. MemoryMagic asks for nothing beyond the download.

MemoryMagic ships an update every 2 weeks, ∫dx monthly. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | MemoryMagic | ∫dx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 76 MB | 42 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Planetbeyond](https://appshunter.io/developer/1463932388) | [PRANEEL AGRAWAL](https://appshunter.io/developer/1868893039) |

## What reviewers say

### MemoryMagic

[App page](https://appshunter.io/ios/app/memorymagic-gcse-science-quiz/id6587567949)

**Features:** macOS Compatibility

**In-app purchases:** none


### ∫dx

[App page](https://appshunter.io/ios/app/dx-a-level-maths-practice/id6758026965)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dx Premium Monthly | $4.99 | per month |
| dx Premium Annual | $12.99 | per year |


## Frequently asked questions

### Is MemoryMagic free?

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

### Is ∫dx free?

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

### Do MemoryMagic or ∫dx have ads?

Neither MemoryMagic nor ∫dx shows ads.

### Which is updated more often, MemoryMagic or ∫dx?

MemoryMagic ships an update every 2 weeks, and ∫dx monthly. Most recently, MemoryMagic was updated on October 15, 2026 and ∫dx on October 4, 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.*