Games and tools for people with Down syndrome.
Built so my daughter can use them, enjoy them, and get something real out of them. If they work for her, they will work for a lot of other people too.
Why this exists
My daughter Katya has Down syndrome. I wanted her to have a great life, and part of that is having tools and games she actually likes using — not ones that are too complex or advanced for her.
Most apps are not built with her in mind. They move fast, they punish mistakes, and they assume you can read a lot of small text quickly. So I started making ones that are.
You can read about Katya and her story at 51katya.com.
Where the name comes from
Down syndrome is also called Trisomy 21 — three copies of the 21st chromosome instead of two. That is the 321.
What that means in practice
- No timers and no losing. You cannot fail. You can put it down and pick it up later.
- Big, clear, and calm. Large touch targets, plain words, no clutter.
- No ads and no tricks. Nothing is designed to keep you hooked or to sell you something.
- Private. Nothing about you leaves your device.
The first app
Animal Escape
A calm hex puzzle. Help every animal find the way home.
Tap an animal and it walks the way it is facing. If the path is clear, it goes home. There is no timer, no score, and no way to get stuck. 48 animals to meet across three habitats.
Get in touch
Questions, problems, or ideas for what to build next — email support@321ceo.com. A real person reads it.