# EarnIt vs ∫dx

The clearest difference is update cadence: EarnIt at every 2 weeks against ∫dx's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. EarnIt sells 7 in-app purchases, starting at $2.99 per month and ∫dx sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

EarnIt ships an update every 2 weeks, ∫dx monthly. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | EarnIt | ∫dx |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 70 MB | 42 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EarnIt App LTD](https://appshunter.io/developer/1768749782) | [PRANEEL AGRAWAL](https://appshunter.io/developer/1868893039) |

## What reviewers say

### EarnIt

[App page](https://appshunter.io/ios/app/earnit-focus-and-study/id6737980280)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access Monthly | $2.99 | per month |
| Full Access for 3 Months | $4.99 | per 3 months |
| Full Access Monthly | $7.99 | per month |
| Full Access Monthly | $9.99 | per month |
| Full Access Yearly | $19.99 | per year |
| Full Access Yearly | $59.99 | per year |
| Full Access for Lifetime | $11.99 | one-time |


### ∫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 EarnIt free?

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

### Is ∫dx free?

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

### Do EarnIt or ∫dx have ads?

Neither EarnIt nor ∫dx shows ads.

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

EarnIt ships an update every 2 weeks, and ∫dx monthly. Most recently, EarnIt was updated on October 3, 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.*