KEMIplay - MathWorld
Math Games for Grades 1–9
$1.99
Build confidence in math with 110+ curriculum-based concepts for Grades 1–9. Follow 21 school curricula or practise freely with Dynamic Mode. No ads or microtransactions.
Learning math should be exciting, rewarding and fun.
KEMIplay – MathWorld transforms everyday math practice into an adventure where children explore, discover and solve engaging challenges while building real mathematical confidence.
Designed for Grades 1–9, MathWorld supports 21 school curricula and also includes Dynamic Mode, allowing children to practise mathematics freely without following a specific curriculum.
With more than 110 curriculum-based math concepts, children strengthen essential mathematical skills including:
• Counting
• Number Recognition
• Addition
• Subtraction
• Multiplication
• Division
• Fractions
• Decimals
• Percentages
• Place Value
• Measurement
• Time
• Geometry
• Data & Graphs
• Algebra Foundations
• Problem Solving
...and much more.
Choose the curriculum that matches your school or switch to Dynamic Mode to practise a wide variety of mathematical concepts regardless of curriculum. Whether your child is preparing for tomorrow's lesson, reinforcing classroom learning, catching up on difficult topics or simply enjoys solving math challenges, MathWorld adapts to the way they learn.
Learning happens through a growing collection of unique interactive Vaults. Each Vault presents mathematics in a different way, encouraging exploration, logical thinking and problem solving while making practice enjoyable and rewarding.
MathWorld is designed for:
• Daily practice
• Classroom support
• Homework
• Revision
• Homeschooling
• Refreshing forgotten skills
Features
• Supports Grades 1–9
• 21 school curricula
• Dynamic Mode for curriculum-free practice
• 110+ curriculum-based math concepts
• A growing collection of interactive Vaults
• Child-friendly interface
• Designed for home and classroom use
• No advertisements
• No subscriptions
• No microtransactions
• One simple purchase
At KEMIplay, we believe children learn best when they are curious, engaged and having fun. Our mission is to make mathematics something children look forward to practising every day.
Start your MathWorld adventure today!
Ratings & Reviews
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Welcome to MathWorld!
• Initial worldwide release
• Supports Grades 1–9
• 21 school curricula
• 110+ curriculum-based math concepts
• Dynamic Mode for curriculum-free practice
• Interactive educational Vaults
• Performance improvements and bug fixes
The developer, KEMIplay Oy, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- KEMIplay Oy
- Size
- 812.2 MB
- Category
- Education
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
English and 20 more
- English, Arabic, Danish, Dutch, Finnish, French, German, Hindi, Icelandic, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish, Ukrainian
- Age Rating
4+
- 4+
- Copyright
- © 2026 KEMIplay Oy
