Columny

Columny is an educational app designed to help children and students practice written calculations in a clear and structured way.

The app focuses on column-based arithmetic and allows users to train:

• addition

• subtraction

• multiplication

• long division

Columny guides users step by step, just like solving problems in a notebook. Each entered digit is checked immediately, helping students understand mistakes and learn correct procedures.

Key features:

• Unlimited automatically generated problems

• Step-by-step support for multiplication and long division

• Instant feedback for every entered number

• Custom problem input

• Works fully offline

• Designed for both iPhone and iPad

• Clean interface focused on learning

Columny is ideal for school practice, homework, and independent learning.