Gizmo
AI-generated flashcards with spaced repetition
We publish a full Four-Mismatches fit assessment for the student-facing exam tools first. For this one, the facts below are what we have verified — run the Four Mismatches Test on it yourself for your own students.
Independence: Addestra builds learning products too (MathsTutor, TinkerWell). We never review or score our own, and no tool pays to be listed or to rank higher — how we assess fit.
What it does
What the AI actually does — Generative AI converts notes, PDFs, slides and YouTube into quizzes and flashcards inside a gamified spaced-repetition system.
Why it was built — Passive re-reading doesn't work; make review an actively engaging, game-like habit so it's retained.
Who built it
- Company
- Gizmo (Gizmo AI)
- Founders
- Petros Christodoulou · Paul Evangelou · Robin Jack
- HQ / origin
- London, United Kingdom
- Founded
- 2021
- Model
- B2C
- Languages
- Multiple
- Pricing
- Freemium (~US$8.80/month)
We record durable facts only — no funding-raised or user-count figures. Unverified fields are marked [TBD] rather than guessed.
Where it sits
Gizmo is on the EdTech AI 100 map, in study & homework help, built in United Kingdom.
Related & alternatives
- QuizletFlashcards and study sets with the Q-Chat AI tutor
- KnowunityStudent notes community with an AI helper