Aritmo

Master mental multiplication with the Trachtenberg System — one of the fastest calculation methods ever devised. Learn to multiply using elegant digit-by-digit rules

Train your brain to calculate faster with short, structured mental math lessons.

Aritmo teaches rapid calculation techniques through focused lessons, interactive practice, and gamified challenges. Instead of memorizing random tricks, you learn step-by-step methods for solving arithmetic problems more efficiently in your head.

LEARN MENTAL MATH STEP BY STEP

Aritmo is designed to help you build real calculation skills through progressive courses and practice exercises.

In this first version, Aritmo includes two main learning paths:

• Basic Multiplication Learn the Trachtenberg method for rapid multiplication with numbers from 2 to 11. This course introduces the core patterns and rules used to multiply faster mentally.

• General Multiplication Learn a broader multiplication method for solving more flexible multiplication problems. This course is available with an active subscription.

The app clearly identifies which content is included and which content requires a subscription before purchase.

PRACTICE WITH SHORT DAILY LESSONS

Each concept is broken into simple lessons that can be completed in a few minutes. You can learn a method, practice it immediately, and repeat challenges to build speed and confidence over time.

Aritmo helps you practice:

• Fast multiplication techniques • Mental arithmetic without a calculator • Number patterns that simplify calculations • Focused repetition for stronger recall • Progressive exercises that increase in difficulty

GAMIFIED BRAIN TRAINING

Aritmo turns mental math practice into a structured daily challenge.

You can:

• Progress through lessons • Complete practice exercises • Build learning streaks • Track your progress • Improve your speed through repetition

WHO IS ARITMO FOR?

Aritmo is useful for:

• Students who want stronger arithmetic skills • Adults who want to sharpen their mental calculation ability • Puzzle and brain-training enthusiasts • Anyone curious about rapid mental math methods • Learners who want structured practice instead of random math tricks

SUBSCRIPTION INFORMATION

Aritmo offers optional in-app purchases.

The Basic Multiplication course is available in the app. The General Multiplication course requires an active subscription. Subscription availability and terms are shown clearly in the app before purchase and are managed through your Apple ID.

You can use Aritmo to start learning mental multiplication techniques and upgrade only if you want access to the additional subscription course.

Start training your mental math skills with Aritmo.

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