# IQ Prep vs IQ Test Challenge

The clearest difference is update cadence: IQ Prep at every 2 days against IQ Test Challenge's every 4 days. IQ Test Challenge's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. IQ Prep sells 1 one-off in-app purchase and IQ Test Challenge sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

IQ Prep ships an update every 2 days, IQ Test Challenge every 4 days. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | IQ Prep | IQ Test Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iq-test-challenge/id6816346720/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 30 MB | 16 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Codefellas GmbH](https://appshunter.io/developer/1598808073) | [Paul Stelzer](https://appshunter.io/developer/644648487) |

## What reviewers say

### IQ Prep

[App page](https://appshunter.io/ios/app/iq-prep-iq-test-practice/id6809942683)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $3.99 | one-time |


### IQ Test Challenge

[App page](https://appshunter.io/ios/app/iq-test-challenge/id6816346720)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Club Monthly | $1.99 | per month |
| Club Yearly | $8.99 | per year |


## Frequently asked questions

### Is IQ Prep free?

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

### Is IQ Test Challenge free?

IQ Test Challenge is free to download, with in-app purchases available.

### Do IQ Prep or IQ Test Challenge have ads?

Neither IQ Prep nor IQ Test Challenge shows ads.

### Which is updated more often, IQ Prep or IQ Test Challenge?

IQ Prep ships an update every 2 days, and IQ Test Challenge every 4 days. Most recently, IQ Prep was updated on October 31, 2026 and IQ Test Challenge on November 13, 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.*