Lathoa - Math app where AI is wrong on purpose

Show HN: Lathoa, a math app for kids where the AI is wrong on purpose

Lathoa - Math app where AI is wrong on purpose

Lathoa is a critical-thinking math app for kids aged 10–14. In each challenge, an AI companion named Errol solves a problem step-by-step but makes a deliberate mistake. Kids must spot the bad step, explain why it's wrong in their own words, and earn detective ranks. The app builds the skill of questioning AI-generated answers, with three difficulty tiers (Obvious, Sneaky, Expert) and no timers or pressure. It's free for three cases daily, with subscription plans for families, and every problem is verified before kids see it. No open-ended chat, no profiling, COPPA-respecting.

In a world flooded with AI, the rare skill is knowing when it's lying. Most learning apps reward the right answer. We reward the right question.

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2026-09-30