# IQ Challenge Book vs Intergalactic Rocket Landing

The clearest difference is in-app purchases: IQ Challenge Book at none against Intergalactic Rocket Landing's 2. IQ Challenge Book also leads on rating (5.0 vs 4.8). Intergalactic Rocket Landing's advantage is update cadence (every 23 months vs every 76 months) and ratings volume (5 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Intergalactic Rocket Landing sells 2 one-off in-app purchases. IQ Challenge Book asks for nothing beyond the download.

IQ Challenge Book holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Intergalactic Rocket Landing has 5 ratings behind it against 1, so its average is the more settled of the two.

IQ Challenge Book ships an update every 76 months, Intergalactic Rocket Landing every 23 months. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | IQ Challenge Book | Intergalactic Rocket Landing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/iq-challenge-book/id1320107027/reviews)** | [4.8 (5 ratings)](https://appshunter.io/ios/app/intergalactic-rocket-landing/id1584420522/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 76 months | **Every 23 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 181 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Adrian Minca](https://appshunter.io/developer/1224651577) | [Intergalactic Education LLC](https://appshunter.io/developer/1364648815) |

## What reviewers say

### IQ Challenge Book

[App page](https://appshunter.io/ios/app/iq-challenge-book/id1320107027)

Assess your intelligence level with this application that provides an IQ score based on your answers to a series of questions. It categorizes your score according to a standard IQ scale, ranging from genius to feeble-mindedness. Test your limits and discover your intelligence quotient.

**Highlights:** IQ score determination, Intelligence level assessment, IQ score categorization, Test your limits, User-friendly interface

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

**In-app purchases:** none


### Intergalactic Rocket Landing

[App page](https://appshunter.io/ios/app/intergalactic-rocket-landing/id1584420522)

Test your piloting skills in this challenging mini-game. Successfully land a rocket on a floating platform across increasingly difficult levels. Aim to master the controls and achieve the highest score.

**Highlights:** Rocket landing gameplay, Progressive level system, High score tracking, Challenging difficulty, Mini-game format

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Five Extra Lives | $0.99 | one-time |
| Twenty Extra Lives | $2.99 | one-time |


## Frequently asked questions

### Is IQ Challenge Book free?

IQ Challenge Book is free to download, with no in-app purchases.

### Is Intergalactic Rocket Landing free?

Intergalactic Rocket Landing is free to download, with in-app purchases available.

### Which has better reviews, IQ Challenge Book or Intergalactic Rocket Landing?

IQ Challenge Book is rated higher. IQ Challenge Book averages 5.0 out of 5 from 1 ratings, while Intergalactic Rocket Landing averages 4.8 from 5 ratings.

### Do IQ Challenge Book or Intergalactic Rocket Landing have ads?

Neither IQ Challenge Book nor Intergalactic Rocket Landing shows ads.

### Which is updated more often, IQ Challenge Book or Intergalactic Rocket Landing?

IQ Challenge Book ships an update every 76 months, and Intergalactic Rocket Landing every 23 months. Most recently, IQ Challenge Book was updated on October 16, 2026 and Intergalactic Rocket Landing on October 5, 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.*