Overview
Lathoa is a critical-thinking learning tool for children ages 10–14. Its AI robot, Errol, deliberately makes a mistake while solving a math problem, turning each exercise into an error-detection case rather than a conventional right-answer quiz.
The approach is designed to help children question plausible answers, examine reasoning, and explain why a step is wrong. Math is the initial subject because each problem and deliberate error can be checked with a deterministic solver.
How a Case Works
- Errol presents a step-by-step solution containing one incorrect step.
- The child reviews the work without a timer and identifies the mistake.
- The child writes a short explanation of what went wrong.
- Lathoa reveals the correct solution alongside Errol’s attempt.
- Successful catches contribute to detective ranks based on accuracy rather than speed.
Learning Features
Errors are offered at Obvious, Sneaky, and Expert difficulty levels to suit different skills. Children can revisit previous catches through case files, while paid parent features include progress information and misconception flags.
The service avoids grades by default and makes leaderboards optional. It states that it has no ads or child profiling, and that problems are verified before children see them.
Pricing
The Free plan supports one child, three challenges per day, and Obvious difficulty. New accounts receive seven days of the Parent plan without providing a card, then move to Free unless a paid plan is selected.
Learner costs $6.99 monthly or $66.99 yearly and adds unlimited challenges and all difficulty levels. Parent costs $9.99 monthly or $95.99 yearly and adds a parent dashboard, weekly reports, and skill-gap analysis for one child. Family costs $14.99 monthly or $143.99 yearly and supports up to four child profiles with individual progress tracking.