# Calculus Increase Brain IQ — Ultimate Genius Math Puzzle

> Math puzzle game to improve math skills by solving number grid challenges. (iPhone/iPad app by Phoenix Mind Games.)

- Source: https://appshunter.io/ios/app/calculus-increase-brain-iq/id1461745045 (this page in markdown: same URL + `.md`)
- Developer: [Phoenix Mind Games](https://appshunter.io/developer/1396381573)
- Category: Games, Education, Puzzle, Trivia
- Price: Free with in-app purchases
- Rating: 4.10/5 from 7 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 58 MB
- Languages: American English
- Released: 2019-05-03
- Data updated: 2026-09-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/calculus-increase-brain-iq/id1461745045/reviews.md

## What is Calculus Increase Brain IQ?

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 **
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** PRIVACY POLICY **
As a designer of kids & Adults games, read our privacy policy here: http://www.phoenixgames.in/privacypolicygames.html

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 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 |
| Handful Hint | $5.99 | one-time |
| Slight Of Hint | $4.99 | one-time |
| Batch Of Hint | $6.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/calculus-increase-brain-iq/id1461745045/reviews.md

### 5/5 — Great app

*2024-04-28*

I really enjoy this app. It’s fun enough relax but challenging enough to improve mental dexterity.

### 2/5 — Well, you asked for it

*2022-07-17*

Asking me to review the app EVERY time I open it can have unintended consequences.

### 4/5 — Great Game

*2019-09-15*

This game is super fun. It kinda reminds me of Sudoku. It’s a bit confusing at first and the directions are a bit unclear but overall, it is still super fun.

### 5/5 — Superb game !!!

*2019-06-12*

Calculus is a superb game.   However it is quite hard at the beginning.     
Never saw such a game.    Good work !!   Keep it up !!

## Frequently asked questions about Calculus Increase Brain IQ

### How do you play Calculus?

In Calculus, you remove numbers from a grid so that the remaining numbers in each row and column add up to the specified target numbers. You can click numbers to remove them or add them back.

### What are the different game modes in Calculus?

Calculus offers Classic mode, where you choose board size and difficulty, and Endless mode, which provides puzzles with random sizes and difficulties. Your total wins are saved across all modes.

### Can I customize the difficulty in Calculus?

Yes, Calculus features three difficulty levels: 1-9, 2-4, and 1-19, which determine the range of numbers used on the board. You can also select board sizes from 3x3 up to 8x8.

### Does Calculus have ads?

No, Calculus does not contain advertisements, allowing for an uninterrupted puzzle-solving experience.

### What board sizes are available in Calculus?

Calculus supports a variety of board sizes, including 3x3, 4x4, 5x5, 6x6, 7x7, and 8x8, offering different levels of complexity.

### Is Calculus available on multiple devices?

Calculus is designed for iOS devices, including iPhone, iPad, and iPod, making it accessible to a wide range of Apple users.

### How often is Calculus updated?

The latest version of Calculus is 1.2, and it was last updated on July 12, 2022. The developer, Phoenix Mind Games, has released updates since its initial release on May 3, 2019.

### What is the age rating for Calculus?

Calculus has an age rating of 4+, indicating it is suitable for children and adults alike, focusing on general mathematical challenges.

## Version history (last 3 releases)

### 1.2 — 2022-07-12

~ minor bug fix

### 1.1 — 2022-03-11

~ minor bug fix

### 1.0 — 2019-05-03

No release notes.

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All apps by Phoenix Mind Games: https://appshunter.io/developer/1396381573

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*