# IQ Test vs Calculus Increase Brain IQ

The clearest difference is review sentiment: Calculus Increase Brain IQ at 75% against IQ Test's 35%. Calculus Increase Brain IQ also leads on monetization model (free vs free with in-app purchases) and iOS requirement (11.0 vs 15.0). IQ Test's advantage is update cadence (every 6 weeks vs every 19 months) and ratings volume (8K vs 7). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. IQ Test sells 10 in-app purchases, starting at $3.99 per month and Calculus Increase Brain IQ sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

IQ Test holds the better App Store score, 4.4 against 4.1. That said, the two scores are not equally well evidenced: IQ Test has 8K ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 35% of IQ Test's written reviews are positive against 75% of Calculus Increase Brain IQ's, so the app with the better star average is not the one people write more warmly about.

IQ Test ships an update every 6 weeks, Calculus Increase Brain IQ every 19 months. The most recent releases landed on November 12, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | IQ Test | Calculus Increase Brain IQ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (8K ratings)](https://appshunter.io/ios/app/iq-test-intelligence-quiz/id1347362487/reviews)** | [4.1 (7 ratings)](https://appshunter.io/ios/app/calculus-increase-brain-iq/id1461745045/reviews) |
| Number of ratings | **8K** | 7 |
| Positive reviews | 34.8% of reviews | **75.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 19 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#193** | — |
| Size | 66 MB | 58 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Paul Stelzer](https://appshunter.io/developer/644648487) | [Phoenix Mind Games](https://appshunter.io/developer/1396381573) |

## What reviewers say

### IQ Test

[App page](https://appshunter.io/ios/app/iq-test-intelligence-quiz/id1347362487)

**Currently charting:** #193 Top Grossing · Trivia (US App Store)

Assess your intelligence with a comprehensive IQ test. Receive an instant score, detailed statistics on your strengths and weaknesses, and review your answers. Offers puzzles and exercises for brain training and test preparation.

**Highlights:** Full-length IQ exam, Instant IQ score on bell curve, Detailed category statistics, Review right/wrong answers, Puzzles with hints and solutions, Multiple language support

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IQ Test Pro | $3.99 | per month |
| IQ Test Pro Year | $19.99 | per year |
| Complete Statistics | $0.99 | one-time |
| Premium 3 | $3.99 | one-time |
| Premium 1 | $3.99 | one-time |
| Explanations | $4.99 | one-time |
| Premium Plus Young people | $5.99 | one-time |
| Pro Forever | $8.99 | one-time |
| Pro Forever Super Sale | $17.99 | one-time |
| Pro Forever | $29.99 | one-time |

**What reviewers like**

- 🤔 Challenging and engaging
- 💡 Interesting concept for an IQ app
- 👍 Good for brain exercise

**What reviewers complain about**

- 🐛 Grammatical errors and poor translations
- 💸 Paywall for answers and explanations
- 🤯 Confusing and unclear instructions
- 🤖 Inaccurate or inconsistent IQ scoring

**Reported bugs**

- Questions with no logical correct answer
- Inability to see questions/content properly
- Crashes and freezes during tests

**Requested features**

- Improved English language support
- More detailed explanations for questions
- Ability to review past performance
- Pause/resume functionality


### Calculus Increase Brain IQ

[App page](https://appshunter.io/ios/app/calculus-increase-brain-iq/id1461745045)

A math puzzle game where players remove numbers from a grid to make row and column sums match target values. Offers various board sizes and difficulty levels to enhance mathematical thinking.

**Highlights:** Number puzzle with customizable themes, Match row and column sums to target numbers, Remove numbers by clicking, Adjustable board sizes (3x3 to 8x8), Multiple difficulty levels, Classic and Endless game modes

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Of Hint | $0.99 | one-time |
| Activate Adblock | $1.99 | one-time |
| Peak Of Hint | $1.99 | one-time |
| Lot Of Hint | $2.99 | one-time |
| Pile Of Hint | $3.99 | one-time |
| Slight Of Hint | $4.99 | one-time |
| Handful Hint | $5.99 | one-time |
| Batch Of Hint | $6.99 | one-time |


## Frequently asked questions

### Is IQ Test free?

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

### Is Calculus Increase Brain IQ free?

Calculus Increase Brain IQ is free to download, with in-app purchases available.

### Which has better reviews, IQ Test or Calculus Increase Brain IQ?

IQ Test is rated higher. IQ Test averages 4.4 out of 5 from 8K ratings, while Calculus Increase Brain IQ averages 4.1 from 7 ratings.

### Do IQ Test or Calculus Increase Brain IQ have ads?

Neither IQ Test nor Calculus Increase Brain IQ shows ads.

### Which is updated more often, IQ Test or Calculus Increase Brain IQ?

IQ Test ships an update every 6 weeks, and Calculus Increase Brain IQ every 19 months. Most recently, IQ Test was updated on November 12, 2026 and Calculus Increase Brain IQ on November 3, 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.*