! Exploding Paintballs ! vs IQ Challenge Book
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
! Exploding Paintballs !
A tilt-sensitive arcade game where players link and explode colored paintballs. Compete with friends on leaderboards for high scores and unlock more levels through in-app purchases. Experience realistic physics and varied explosion sounds.
- Tilt or touch controls
- Physics-based gameplay
- Link and explode colored paintballs
- Realistic explosion sounds
- Game Center leaderboards
- Unlockable levels via IAP
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!Exploding Paintballs! is a tilt-sensitive arcade game with paintballs that float (blue and green) and paintballs that sink (red and yellow). When certain color combinations of paintballs touch they link together and, when the link is complete, explode with a loud realistic explosion noise. The color combinations that will explode vary with each Level. The Game Center records various scores on Leaderboards such as number of Levels completed, number of explosions, best times for certain Levels and best times for all Levels combined. Compete with your Game Center Friends to see who can make the most explosions or who can get 10 explosions on one or all Levels the fastest. Gravity is adjusted by tilting the iPhone, iPad or iPod Touch. Alternatively, !Exploding Paintballs! can respond to touch moves rather than tilt. The exploding noise differs for the different color combinations that explode (e.g. gunshots, crashes, bombs). The sound can be turned off or made into a vibration. There are 8 free Levels - 4 with walls and 4 without walls. An In App Purchase expands the number of Levels to 66 - 33 Levels with walls and 33 Levels without walls. !Exploding Paintballs! is based on a kinetic simulation using the device's accelerometer and realistic principles of physics (buoyancy, inertia, viscosity, Hooke's Law and color confinement). For accuracy and stability it uses a half step modification to Euler's Algorithm as described by Feynman (Lectures on Physics, Vol. 1, Ch. 9, P. 5) and Cromer (Am. J. Phy. 49, 455 (1981)). The screen shots below are: 1) Free Level 1 - Red-Blue. A red-blue combination is shown exploding. 2) The Levels Table. The 4 free Levels are shown together with the Best Times and maximum number of Explosions. 3) Free Level 2 - Red-Blue, Yellow-Green. A red-blue (yellow-green for iPad) combination is shown exploding. 4) Free Level 3 - Blue-Yellow-Green. Some partial combinations are shown linked and one blue-yellow-green is shown exploding. 5) Free Level 4 - Red-Green-Green-Loop. Some partial combinations for the loop are shown linked and one red-green-green-loop is shown exploding.
IQ Challenge Book
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.
- IQ score determination
- Intelligence level assessment
- IQ score categorization
- Test your limits
- User-friendly interface
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Have you ever wondered how smart you are compared to the people in your life, or even compared to all people your age? You can get a good idea of your intelligence level by determining your IQ. An IQ, or intelligence quotient, is a score you receive on a test that assesses intelligence. The following scale resulted for classifying IQ scores: IQ Scale Over 140 - Genius or almost genius 120 - 140 - Very superior intelligence 110 - 119 - Superior intelligence 90 - 109 - Average or normal intelligence 80 - 89 - Dullness 70 - 79 - Borderline deficiency in intelligence Under 70 - Feeble-mindedness After you answer to all questions, just click on the Final Result button. This app will test your limits!Enjoy!
Screenshots
Verdict
The clearest difference is in-app purchases: IQ Challenge Book at none against ! Exploding Paintballs !'s 1. IQ Challenge Book also leads on rating (5.0 vs 4.8). ! Exploding Paintballs !'s advantage is update cadence (every 2 months vs every 76 months) and ratings volume (5 vs 1). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. ! Exploding Paintballs ! sells 1 one-off in-app purchase. 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: ! Exploding Paintballs ! has 5 ratings behind it against 1, so its average is the more settled of the two.
! Exploding Paintballs ! ships an update every 2 months, IQ Challenge Book every 76 months. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.
| Parameter | ! Exploding Paintballs ! | IQ Challenge Book |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 2 months — better | Every 76 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Peter Kramer | Adrian Minca |
Customer experience
! Exploding Paintballs !
IQ Challenge Book
In-app purchases
! Exploding Paintballs !
- upgrade to play the Additional Levels$0.99
IQ Challenge Book
No in-app purchases
Questions
Is ! Exploding Paintballs ! free?
Is IQ Challenge Book free?
Which has better reviews, ! Exploding Paintballs ! or IQ Challenge Book?
Do ! Exploding Paintballs ! or IQ Challenge Book have ads?
Which is updated more often, ! Exploding Paintballs ! or IQ Challenge Book?
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