How Quizmark compares
Three browser extensions that quiz you on YouTube videos, compared on what changes how you actually study.
| Feature | Quizmark | LearnTube AI | Recall |
|---|---|---|---|
| Price of quizzes | Free | Free | $10/month, billed yearly (Plus) |
| Quizzes while the video plays | – | ||
| Quiz inside the player, including fullscreen | – | – | |
| When quizzes appear | At the interval you choose, moved to the nearest chapter change or pause in speech | At fixed intervals | As spaced-repetition reviews, after you save the video |
| Questions checked against the video | – | – | |
| Replays the moment behind an answer | – | – | |
| Final test across the whole video | – | ||
| Your own API key | 7 providers | Gemini only | – |
| Model on your own computer | LM Studio or Ollama | Gemini Nano, in Chrome | – |
Checked September 2026 against each product’s pricing page, documentation and, where public, source code. Recall’s free plan has no quizzes; LearnTube AI asks one to three questions per break.