Capybara CountsOwn product · 2026 · phone game in Russian
Second grade, two-digit sums, and a parent stuck too.
Task: A second grader freezes over 37 + 25, and the parent can't explain where the little one comes from → Solution: built a game: a capybara turns sums into tangerines and crates on the road to a hot spring → Result: tested with a real second grader, who solved column sums on their own
The capybara walks the child through two-digit sums: mentally, in columns and with carrying. The child enjoys playing, and the grown-up sees what works.
Built it end to end in two days: level design, the game scene, the character, voice-over and saving without a server.
The one-minute video
What the game is, how kids play it and what the grown-up sees. Easy to share in a class parents' chat.
The video is in Russian. Tap the player to turn the sound on.Where the carried one comes from
33 + 29 from level six of the game- "Three plus nine is twelve: write two, carry one." The child nods and doesn't get it.
- The grown-up once memorized it too, so the little one above the tens is hard to explain.
- A mistake, and it is unclear where exactly: in the ones, the tens or the carry.
A tangerine is a one, a crate is a ten. Twelve tangerines gather in the ones column, ten jump into a crate, the crate drives to the tens and becomes that little "1". The child sees the carry first, then does it on their own.
Why kids enjoy it
Each sum is a step along the path through a garden, a river, bamboo and a volcano. A new level opens after 8 of 10 correct, so difficulty grows with the child.
A crocodile who stole the tangerines guards every gate, the child beats him with a run of sums. Every five sums there is a mini game: bubbles or crates into a basket.
Stars buy the capybara hats, there are 12 of them. Mistakes are never scolded: the capybara sees where the child slipped and talks it through on the same tangerines.
What's inside
From number composition to columns with carrying, mixed sums at the end.
A tangerine is a one, a crate is a ten, the carry is visible.
Over 500 lines, so it works even if the child still reads slowly.
Peterson-style, tally sticks or digits only, switched on the grown-up screen.
Stars, 12 hats, stickers, a daily chest, a streak that never punishes skipping.
Goes on the home screen and works without the internet.
For parents
Grown-ups get their own screen behind a birth-year question: what the child gets right and where they get confused.
Accuracy by sum type for the week and all time, frequent mistakes, minutes per day and progress on every level.
Peterson-style notation, tally sticks or digits only. Voice speed, volume and animations live there too.
No ads, passwords or SMS. Progress stays on the phone and moves to another one by code or QR. The game only collects anonymous stats: no names, IPs or save codes.
