# ∫dx vs Untranslated

The clearest difference is in-app purchases: Untranslated at none against ∫dx's 2. Untranslated also leads on update cadence (every 5 days vs monthly). ∫dx's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and ads there is nothing between them.

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

∫dx ships an update monthly, Untranslated every 5 days. The most recent releases landed on October 4, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ∫dx | Untranslated |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 42 MB | 18 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PRANEEL AGRAWAL](https://appshunter.io/developer/1868893039) | [Aurelian Object Ltd](https://appshunter.io/developer/6800933900) |

## What reviewers say

### ∫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 |


### Untranslated

[App page](https://appshunter.io/ios/app/untranslated/id6800933898)

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

**In-app purchases:** none


## Frequently asked questions

### Is ∫dx free?

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

### Is Untranslated free?

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

### Do ∫dx or Untranslated have ads?

Neither ∫dx nor Untranslated shows ads.

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

∫dx ships an update monthly, and Untranslated every 5 days. Most recently, ∫dx was updated on October 4, 2026 and Untranslated on October 15, 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.*