Mental Math Games: Numbio

Mental Math Games: Numbio

Arithmetic Trainer & Cards

1.1K ratings
513 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • February 9, 2021
  • September 6, 2026

Features

Mental Math Games: Numbio screenshot #1 for iPhone
Mental Math Games: Numbio screenshot #2 for iPhone
Mental Math Games: Numbio screenshot #3 for iPhone
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Mental Math Games: Numbio screenshot #5 for iPhone
Mental Math Games: Numbio screenshot #6 for iPhone
Mental Math Games: Numbio screenshot #7 for iPhone
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About

Sharpen your mental math skills with this app offering a wide range of exercises from basic arithmetic to fractions and percentages. It features timed challenges, progress tracking, and customizable modes to suit all levels.

✓Wide variety of math exercises
✓Timed challenges for speed
✓Progress tracking and high scores
✓Adjustable difficulty levels
✓Math tricks and shortcuts
✓Customizable trainer mode
✓Achievements and rewards
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What users say

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What's New in Mental Math Games

4.6.0

September 6, 2026

We regularly update Numbio to keep your mental maths training smooth, fast, and fun. Every update brings a mix of improvements, refinements, and bug fixes to help you practise better. Thanks for training with us, and happy calculating! Questions or feedback? Reach us at hello@numbio.com.

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Subscriptions & In-App Purchases

Pro Annual

Get full access to all Pro features.

$17.991 Year
3 Days trial
Price Updates
October 7, 2026→$17.99
May 20, 2025→$17.99
November 28, 2024→$12.99
October 11, 2024→$9.99
How to cancel Mental Math Games subscription ⁉️

Events

Read more about Mental Math Games Cup

Mental Math Games Cup

Play Sudoku, Magic Square and Number Hunt.

Aug 24, 2026 — Sep 12, 2026

Read more about FastMath is now Numbio

FastMath is now Numbio

New name. Fresh look. More mental math than ever.

Jul 12, 2026 — Aug 12, 2026

Read more about Practice Times Tables

Practice Times Tables

Now you can fully customize your times tables!

Mar 30, 2024 — Apr 30, 2024

User reviews

One of the Best Apps I’ve Ever Downloaded!

⭐⭐⭐⭐⭐

Numbio is absolutely fantastic! It takes something that can feel like a chore—practicing mental math—and turns it into a genuinely fun, engaging, and addictive experience. The beautiful, minimalist design, intuitive interface, and timed challenges make it incredibly satisfying to use.

What I love most is that I’m not just playing a game; I’m developing a valuable skill that I can use in everyday life. It’s incredibly rewarding to feel yourself getting quicker and more confident with numbers.

This is exactly what a brain-training app should be: challenging, enjoyable, and something you actually look forward to opening every day. I can easily see myself making Numbio part of my daily routine for years to come.

A brilliant app that deserves far more recognition. An easy five stars!
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Good, but extreme multiplication and division is too easy

Add harder multiplication and division!! Should not only include whole numbers answers in division!! Have estimation to x amount of decimals

Refreshing knowledge

I have noticed that it serves as a perfect refresher for things I have learnt at school and even provide better calculation techniques and correct things I was taught incorrectly. Simply brilliant.

Great

I love this app!

Great app

I was looking for this kind of app which can ask math questions over audio and can take verbal answers. Great for practising math and brushing math skills.

One issue there is that in the read out exercises option the volume of the app fluctuates and can’t be properly adjusted using volume controls.
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Response from developer

Thanks so much for the awesome review! We’re thrilled to hear that Numbio is helping you practice and brush up on your math skills—especially with the audio exercises. About the volume issue: thanks for pointing that out! We’ll look into it to see how we can improve. If you notice anything else or have more ideas, feel free to email us at hello@numbio.com. Happy calculating!

Developer apps

User experience

🐞

Reported Bugs

2 issues

Inconsistent scoring feedback

Bug

Subscription issues with repeated charges

Bug
✨

Requested Features

4 requests

More advanced math operations (e.g., powers, roots)

Feature

Customizable practice sessions

Feature

Detailed performance analytics

Feature

Ability to review past questions

Feature

FAQ

What does the FastMath app do?

FastMath is a personal brain trainer designed to help users master mental math quickly. It offers a variety of interactive exercises to improve calculation speed and accuracy, making it suitable for test preparation, brain fitness, and everyday mental math training.

What kind of math exercises are available?

The app supports a wide range of exercises including addition, subtraction, multiplication, and division. It also offers advanced options like squares, square roots, fractions, percentages, and modulo operations, catering to various skill levels.

Is FastMath free to use?

The app is free to download and use with basic features. However, certain advanced features like squares, square roots, fractions, percentages, and modulo operations require an active FastMath Pro subscription.

Who can benefit from using FastMath?

FastMath is ideal for a broad audience, including elementary and high school students, university students, graduates preparing for exams like the GMAT and GRE, professionals training for assessments, and adults seeking to enhance their mental sharpness and cognitive skills.

How does FastMath help improve math skills?

It helps improve math skills through timed challenges that boost speed and accuracy, personalized goal setting, progress monitoring, and the learning of handy math tricks and shortcuts. The trainer mode also allows for customized exercises to focus on specific areas.