A kids' math app without dark patterns
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I wanted to find an iPad game where my 5yo could learn math, which sounded simple.Turns out most kids' educational apps are... shady. Notifications, streak mechanics, ads for games definitely not meant for children, coin systems and flashy rewards designed to maximize engagement rather than learning.So I decided to vibe code something for her.The result is Lumi. It's a simple math app with: - No ads, no accounts, no tracking - No notifications - No coins, streaks, or variable reward nonsense - Daily limits (because kids should go play outside) - Works offline, stores everything locally - Supports English, Portuguese, German, French (more to come)My daughter has been using it for a while now and actually enjoys it. The problems adapt to her level, and when she hits the daily limit, it just tells her to go do something else.It's completely free and open source. I built it for her, but figured other parents might find it useful too.https://playlumi.app/ https://github.com/matheusml/lumiHappy to answer questions about the tech stack (SvelteKit, TypeScript), decisions, or anything else
HN · launched Jan 14, 2026 · 12 upvotes (top 44%) · 0 views
Niche: educational games and learning tools · 207 launches, 24 in the last 7 days ▲ +50% · Explore this niche →
Category and tags
- Education
- Vertical SaaS
- B2C
- Not AI
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 207 launches in educational games and learning tools →
Could you build this?
Yes It is a straightforward, open-source SvelteKit web application offering simple math quizzes and calm UI without backend complexity or dark patterns.
Discussion
1 comment analyzed.
Competitors
Other products that read as similar to this one : 224 launches clear the similarity bar, closest 8 shown.
Attention rank: #98 of 225 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 77 days after the earliest competitor.
- Kids Math App · ph · 2026-09-06 · 1 upvotes · similarity 0.62
- Math Sprint · ph · 2026-10-21 · 1 upvotes · similarity 0.55
- Digi Kids Games · ph · 2026-10-13 · 1 upvotes · similarity 0.55
- Lathoa, a math app for kids where the AI is wrong on purpose · hn · 2026-09-30 · 52 upvotes · similarity 0.54
- Math Charm · ph · 2026-10-09 · 1 upvotes · similarity 0.51
- Sova - Math Games for Kids · ph · 2026-11-14 · 1 upvotes · similarity 0.47
- bunny-math · github · 2026-11-02 · 33 upvotes · similarity 0.47
- Wyrm · hn · 2026-07-09 · 81 upvotes · similarity 0.46
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