Comparison

IQ Test vs Calculus Increase Brain IQ

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

IQ Test

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
Read full description

How smart are you really? Take a free, full-length IQ test, see your IQ score on the bell curve right away and find out where you stand compared to others. No sign-up needed. Developed with students of the University of Rostock and inspired by the WAIS-IV. WHAT YOU GET - A complete IQ exam with realistic tasks from many categories – free, with your result at the end - Your IQ score on a bell curve (normal distribution) – instantly see how you compare - Detailed statistics for every category: discover your strengths and weaknesses - Review your right and wrong answers after each category - Puzzles and exercises in three difficulty levels, with hints, solutions and explanations - Available in English, German, Spanish, French, Italian, Portuguese, Turkish and Dutch - Pro without ads – as a one-time purchase, so you don't need a subscription WHAT THE IQ TEST MEASURES Inspired by the WAIS-IV (Wechsler Adult Intelligence Scale), the test covers six areas: - Perceptual reasoning - Processing speed - Working memory - Verbal comprehension - Numerical reasoning - Logical thinking You solve tasks such as matrix reasoning, number sequences, cube folding, image memory, patterns, analogies, estimation, ordering numbers and letters, logic questions and more. WHAT IS AN IQ TEST? An IQ test shows how you perform compared to other people. Intelligence itself is not clearly defined – it is simply what an IQ test measures. That's why only results of the same test can be compared: an IQ above 100 means you solved the tasks better than average, below 100 means worse. So don't take your score too seriously – see it as an exciting comparison with others! BRAIN TRAINING AND TEST PREPARATION Preparing for an aptitude test, an assessment center or a psychological test? Use the puzzles and exercises to train your brain and sharpen your logical thinking, memory and math skills. QUICK BREAKS: IQ TEST CHALLENGE Looking for short brain teasers on the go? Try our second app IQ Test Challenge: over 5000 quick IQ tasks, and for every task you see how others solved it – plus daily challenges and modes like Sudden Death. In short: IQ Test is the full IQ exam, IQ Test Challenge is for a quick break. PRO: UNLOCK EVERYTHING The IQ Test app is free to download. Pro is optional and unlocks: - All IQ tests - All explanations and solutions - All exercises - Detailed statistics With Pro there are no ads. You can get Pro as a one-time purchase that stays unlocked forever. A subscription is also available if you prefer: it renews automatically unless cancelled at least 24 hours before the end of the current period and can be managed or cancelled in your App Store account settings. Terms of Use: https://iqtest-app.de/terms-and-conditions/ Privacy Policy: https://iqtest-app.de/privacy-policy/ License agreement (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Calculus Increase Brain IQ

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
Read full description

Calculus is a simple math puzzle where you have a board full of numbers. The goal is to make the sum of numbers in each row and column be equal to the answer in the box. What you have to do is to remove some numbers from the equation by clicking on them. It sounds simple but requires a lot of thinking. Using it you can improve your Math Power by solving number Math Puzzle. ** Feature - A Math Puzzle Game is available with multiple theme colors. You can use any of them by selecting from various colors on main screen. - The goal is to make the sum of numbers in each row and column be equal to the number in the box. - What you have to do is to remove some numbers from the equation by clicking on them. - It sounds simple but requires a lot of thinking. - The board sizes range from 3×3 to 8×8. There are also 3 levels of difficulty: 1-9, 2-4 and 1-19. - 1-9 means the numbers to calculate will range from 1 to 9. - In Classic mode you can choose which board size and difficulty you want to play - In Endless mode you will be given a puzzle with random size and difficulty. - Your total wins in any mode is saved. ** Game Modes -- 1-9 : Number selection range on board will be 1 to 9. -- 1-19 : Number selection range on board will be 1 to 19. -- 10-19 : Number selection range on board will be 10 to 19. ** Game has 4 types of boards - 3x3: There will be 3 columns, 3 rows and 9 Puzzle numbers to select. - 4x4: There will be 4 columns, 4 rows and 16 Puzzle numbers to select. - 5x5: There will be 5 columns, 5 rows and 25 Puzzle numbers to select. - 6x6: There will be 6 columns, 6 rows and 36 Puzzle numbers to select. - 7x7: There will be 7 columns, 7 rows and 49 Puzzle numbers to select. - 8x8: There will be 8 columns, 8 rows and 64 Puzzle numbers to select. ** How to Play Calculus - A Math Puzzle Game - First of all, you have to select Game Mode [1-9, 1-19, 10-19] & Board Size [3X3, 4X4, 5X5, 6X6, 7X7, 8X8] - Your goal is to remove numbers from the grid so that the remaining numbers in each row or column add up to the numbers next to that row or column. - Click to remove or turn off a number, or click a removed number to add it back in. ** ABOUT Phoenix Games LLP ** With over millions of users Phoenix Games LLP to be known as the creator of games that babies, kids, girls and parents love. Visit us on https://www.phoenixgames.in Share the experience of these top free games with your family, friends and social people. Or follow us on… ** FACEBOOK ** https://www.facebook.com/phoenixgamesllp ** WE VALUE YOUR FEEDBACK ** message us on https://www.facebook.com/phoenixgamesllp ** PRIVACY POLICY ** As a designer of kids & Adults games, read our privacy policy here: http://www.phoenixgames.in/privacypolicygames.html

Screenshots

IQ Test4 screens
Calculus Increase Brain IQ4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
IQ Test versus Calculus Increase Brain IQ: the parameters behind the verdict, then further details
ParameterIQ TestCalculus Increase Brain IQ
PriceFreeFree
Rating4.4 (8K ratings) — better4.1 (7 ratings)
Positive reviews34.8% of reviews75.0% of reviews — better
Number of ratings8K — better7
Update frequencyEvery 6 weeks — betterEvery 19 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size66 MB58 MB
Age rating4+4+
DeveloperPaul StelzerPhoenix Mind Games

Customer experience

IQ Test

All ratings8,025 ratings
Positive85.0%
Neutral5.6%
Negative9.4%
Written reviews336 reviews
Positive34.8%
Neutral16.7%
Negative48.5%

Calculus Increase Brain IQ

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

Bugs and requests

IQ Test

Reported bugs

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

Requested features

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

Calculus Increase Brain IQ

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

IQ Test

Subscriptions2
  • IQ Test Pro$3.991 Month
  • IQ Test Pro Year$19.991 Year
One-time8
  • Complete Statistics$0.99
  • Premium 3$3.99
  • Premium 1$3.99
Show 5 more
  • Explanations$4.99
  • Premium Plus Young people$5.99
  • Pro Forever$8.99
  • Pro Forever Super Sale$17.99
  • Pro Forever$29.99
8 purchases

Calculus Increase Brain IQ

One-time8
  • Stack Of Hint$0.99
  • Activate Adblock$1.99
  • Peak Of Hint$1.99
Show 5 more
  • Lot Of Hint$2.99
  • Pile Of Hint$3.99
  • Slight Of Hint$4.99
  • Handful Hint$5.99
  • Batch Of Hint$6.99

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.

Other comparisons