Learning gets better with the right practice
Teacher-approved apps designed to help learners practice smarter, build confidence and improve their skills.
Abacus Speed
Our Learning Apps
Discover teacher-approved apps designed to make practice engaging and effective
Practice today. Calculate faster tomorrow.
Master the art of mental calculation through systematic abacus practice. Build speed, accuracy, and confidence with timed exercises, oral practice, and comprehensive mistake review.
- ✓Abacus practice
- ✓Mental arithmetic
- ✓Addition, subtraction, multiplication and division
- ✓Anzan / mental visualization
- ✓Timed speed practice
- ✓Oral/dictation practice
See the numbers in your mind
Master Japanese Anzan technique through flash card training. Develop the mental visualization skills to calculate complex problems without a physical abacus.
- ✓Japanese Anzan / mental-abacus visualization
- ✓Flash-card practice
- ✓Addition and subtraction
- ✓Adjustable speed
- ✓Adjustable digits/questions
- ✓Mental arithmetic training
Turn algebra practice into progress
Comprehensive algebra practice for grades 6-9 with NCERT-oriented exercises and international-standard learning support. Master variables, expressions, equations, and algebraic identities through structured practice and instant feedback.
- ✓Grades 6–9
- ✓NCERT-oriented practice
- ✓International-standard learning support
- ✓Variables and constants
- ✓Expressions
- ✓Equations
See learning in action
Experience how our apps make practice engaging and effective
Simple Abacus Speed Practice
Build calculation speed, accuracy and confidence
Why Rainbow Creators
Apps built with care, designed for effective learning
Built for real practice
Exercises focus on repeated skill development rather than passive content.
Designed for young learners
Clear layouts, readable text and distraction-free learning experiences.
Practice anywhere
Core learning experiences are designed to work offline where supported.
Learning without distractions
Ad-free experiences help learners stay focused on what matters.
Teacher Approved
Created with input from educators to support effective learning.
What learners and parents say
Real feedback from families using our apps
"My grand daughter has been using this app for the past few months, and it has made a huge difference in her abacus skills. Her speed and accuracy improved so much that she recently became a champion in an abacus competition! She actually enjoys using it every day — highly recommended for anyone looking to build strong mental math skills."
Raja Gopalan, Grandparent
Simple Abacus Speed Practice
Google Play Store
"Best abacus app for my exam! Its arithmetic abacus genius contest I got 22 sums correct in 1 min."
Abhinaba Debnath, Student
Simple Abacus Speed Practice
Google Play Store
"Very useful for school students to learn about mental arithmetic and we can improve ourself more and more. It can develop our brain much much more!"
M. Jerolin Deborah, Student
Simple Abacus Speed Practice
Google Play Store
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