Comparison table
| Feature | Quizlet | Knowunity | Gemini Notebook | Anki | Astra AI | MicroGrind |
|---|---|---|---|---|---|---|
| Subject Map: your subject’s structure, built from your own material | No | No | No | No | No | Yes |
| Short 5–25 minute sessions tied to the map | No | No | No | No | No | Yes |
| See chapters, topics and concepts before you practise | No | No | No | No | No | Yes |
| Upload PDFs, course packs, slides or notes | Yes | Yes | Yes | No | Yes | Yes |
| Flashcards and practice questions | Yes | Yes | Yes | Yes | Yes | Yes |
| Spaced repetition | No | No | No | Yes | No | Yes |
| Works in the browser, nothing to install on your computer | Yes | Yes | Yes | No | Yes | Yes |
| Visual map of your material, built from your sources | No | No | Yes | No | No | Yes |
| Test mode and mock exams | Yes | Yes | No | No | Yes | Yes |
| Cheapest paid plan | ≈ €8/month (Plus) | €5.99/month (Lite) | €4.99/month (Google AI Plus) | Free · iPhone: €29.99 (one-off) | ≈ €24/month (Plus) | Free · paid from €4/month |
Prices: cheapest paid plan, from public sources on 6 November 2026 — Quizlet, Knowunity, Google AI Plus, Anki, Astra AI. They vary by country, store and promotion: check the official site. Gemini Notebook is Google NotebookLM; Astra AI is the app at astra-ai.co.
Why MicroGrind
- Map first. See the whole subject, chapter by chapter, before you study the first page.
- Then short sessions. Pick 5 to 25 minutes and study the material organised in your map.
- All in one place. Lessons, flashcards, quizzes, spaced repetition and mock exams, built from your own material.
- €4 a month. On the web and on your phone.
Common questions
How much does MicroGrind cost?
€4 a month. Open the app at microgrind.app, on the web or on your phone.
Are the other apps’ prices exact?
They are the cheapest paid plan we found in public sources on 6 November 2026. They change by country, store and promotion, so always check each app’s official site.
Is the Subject Map a mind map?
No. A mind map is a free-form diagram. The Subject Map organises your subject into chapters, topics, concepts and how they connect, from the material you upload, and it drives your short sessions.
Can I use MicroGrind alongside another app?
Yes. You can study your subject’s structure in MicroGrind and keep using another app for whatever else you need.
What can I upload?
PDFs, Word files, text and photos of your notes. The Subject Map is built from the file you upload.
Start at microgrind.app or read what the Subject Map is. Short sessions. Real progress.