Apps by Sergey Malugin
Add and subtract within 20 app icon

Education

Add and subtract within 20

Sergey Malugin

$2.99 In-app purchases unconfirmed
Open on Apple

About this app

Transform Math Practice into an Exciting Adventure! Are you looking for an engaging way to help your child master addition and subtraction within 20? Our app combines education with entertainment, offering a unique experience that makes learning math both fun and effective. Key Features: Interactive Mini-Games: Children can enjoy a variety of simple yet captivating mini-games that make math practice enjoyable. Handwriting Recognition: Leveraging advanced handwritten digit recognition technology, the app allows children to write their answers naturally, enhancing both their math skills and handwriting. Adaptive Difficulty: The app adjusts the level of difficulty based on your child's progress, ensuring a personalized learning experience that keeps them challenged yet motivated. Why Choose Our App? Natural Learning Experience: By allowing handwriting input, children can focus on solving problems without the distractions of multiple-choice questions or keyboard input, promoting better concentration and learning outcomes. Skill Enhancement: Designed specifically to improve addition and subtraction skills with numbers up to 20, our app provides targeted practice to build a strong mathematical foundation. Engaging Content: The fun mini-games and adaptive challenges keep children engaged, making them more likely to practice regularly and develop a love for math.

Latest release

What’s New

Version 5.0.0 Mar 8, 2025

Updated to iOS SDK 18.2 and AIR SDK 51.1

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
0 ratings
0 Aug 27, 2026 · 0 ratings Aug 27, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current $2.99
Historical low USD 2.99
Paid → free
Price history
Current $2.99
$2.99 $1.50 Free Aug 27, 2026 · $2.99 Aug 27, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 27, 2026 · 10:38 AM $2.99

Screenshots

Add and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshotAdd and subtract within 20 iPhone screenshot Add and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshotAdd and subtract within 20 iPad screenshot