2 vs Stellar Math

2-1 helps to teach children how to subtract numbers from 1 to 10. The app doesn't use any words, so it can be used by children in any language. The app has been tested by teachers — you will find the references inside the app, under "references". This is the Lite version: the first three games of every level are free. If you like the app, one single in-app purchase unlocks all nine games — a one-time purchase, and it works with Family Sharing. The app has eight levels, from BEGINNER to INSANE. Each level has nine games, its own tasks and its own trophy — 72 games and eight trophies in all. The levels up to HARD already cover all 45 subtraction tasks from 1 to 10; CHAMPION and INSANE are an extra challenge on top. Our apps are based on a modification of the Leitner system: http://en.wikipedia.org/wiki/Flashcard This means that a task comes back until the child answers it correctly. The app also remembers every task the child has ever got wrong and brings it back later; in the two highest levels, part of every game is drawn from that list. This is how the answers stay in the child's memory, so real learning happens. If the child answers all the tasks of a game correctly, the game is finished, and the next game opens only when the score is high enough. Every game can earn up to three stars. To earn the third star, the child has to play the game again, this time without the help of the animals. • Eight levels with nine games each, and a trophy for every level • Every player has their own name, their own scores and their own settings • Two settings per child: how many different tasks one game holds, and how often a task comes back • The scores can be reset, so that a child can repeat the lessons later, or another child can do the exercises • No advertising from third parties • No account and no registration • Links out of the app only behind a parental gate Please note that our apps are real educational apps, made, among others, for the classroom and for homework. In our apps the education is more important than fun. Our apps are more like doing homework than playing a game, so finishing them can be some work for a child. It might be helpful if the parents or teachers support the child's motivation. The reward for the work is that the child will master all subtraction tasks up to 10 without any problems. We would very much appreciate any feedback from you: info@creasoft.app Recommended for ages 6 - 8

Stellar Math is the homework AI that teaches first—so you understand the method, not just copy the answer. HINTS BEFORE ANSWERS Snap a problem or ask Stellar. Get a gentle hint, check your work, then unlock the full step-by-step solution when you're ready. ASK STELLAR Chat with a patient AI math tutor anytime. Clear explanations at your grade level—from middle school algebra through high school calculus. LEARNING PATH Grade-aware practice that stays on topic. Build mastery with guided problems that stick. PRACTICE WHAT YOU JUST LEARNED After every solve, try similar problems so the method sticks. Build confidence night by night. DAILY CHALLENGE & STREAKS One focused challenge each day plus streaks and mastery badges keep you consistent—even when homework is chaotic. SHARE PROGRESS WITH PARENTS Send a simple weekly summary of topics practiced and where you're improving. Parents see learning, not just answers. MATH COVERAGE • Arithmetic & fractions • Algebra & equations • Geometry & trigonometry • Statistics & probability • Precalculus & calculus FREE TO START Daily challenge, guided AI help (daily limits), photo solver with teach-first flow, and progress tracking. STELLAR MATH PRO Unlimited guided tutoring & photo help, personalized study plans, and voice tutor for hands-free walkthroughs. 7-day free trial. Perfect for middle and high school students—and parents who want homework help that builds real understanding. Privacy Policy: https://stellarmath.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://stellarmath.app/support