Study feeds your pet
Every practice question you answer keeps your pet fed and growing. Skip a day and it goes hungry — the streak has a face, and students come back for it.
Company
petso is a virtual pet that grows every time you study. We're building the motivation layer for the world's high-stakes exams — the ones with no real learning materials or apps.
Around the world, millions of students prepare for entrance, language, and certification exams with photocopied guides, PDF dumps, and disconnected apps — nothing mobile-first, nothing in their own language, and nothing that keeps them coming back. Search for prep for most of these exams and no first-party product answers cost, value, and data privacy in one scroll. There's no "Duolingo for exam prep" — the motivation gap is wide open, and each of these markets stays paid-acquisition-only until someone builds the organic front door.
Every practice question you answer keeps your pet fed and growing. Skip a day and it goes hungry — the streak has a face, and students come back for it.
An FSRS spaced-repetition engine schedules exactly what to review and when, so knowledge compounds day after day instead of cramming the night before.
petso ships as native iOS and Android apps, in each exam's own language. Freemium: free to start, with a Plus tier for deeper practice and AI-assisted study tools.
The platform is exam-agnostic by design: adding an exam is new content, not a new app. We enter through Mexico's EXANI-II in 2026 — a high-volume entrance exam with no first-party organic answer — then EPSO, the European Union's staff-selection competitions, where tens of thousands of candidates a year prepare with books and courses but no real app. The same playbook then opens to underserved entrance, civil-service, and licensure exams worldwide.
petso is designed, engineered, and shipped end-to-end by a solo founder-engineer — across the native apps, the backend, and the content pipeline. Full bio and photo coming soon.
Questions, partnership ideas, or press inquiries — reach the founder directly.
Email the founderOr write to: hola@petso.app
Investors: we're happy to walk through the roadmap, the market, and exactly where we are — same email, just mention you're investing.