Anki is the spaced-repetition system serious memorizers swear by: open source, free on desktop, web, and Android, with an FSRS scheduler that medical students trust with their careers. It is also famously demanding — you build or import every card, and the interface has not changed much since 2008.
MindShark is the opposite trade. You do none of the authoring: name a topic, get a Deep Dive with quizzes and explanations, and the app decides what to review and when. Less control, far less setup.
| Feature | MindShark | Anki |
|---|---|---|
| Topic choice | Any topic you name — a Deep Dive is generated on demand | Anything, if you write or import the cards |
| Content source | Generated per topic, with explanations | Your cards, or shared decks |
| Session format | 10 Modules of ~5-minute quiz-driven Bites | Daily review queue, user-set |
| Spaced repetition | Built in, automatic | FSRS / SM-2, fully configurable |
| Adaptive difficulty | Yes | Per-card scheduling only |
| Diagnostic before content | Yes | No |
| Explanations for answers | Yes | Only what you wrote on the card |
| Setup effort | None | High |
| Streaks and gamification | XP, streaks, leagues | None |
| Offline | Installable PWA | Fully offline |
| Platforms | Web app, installable as a PWA; native iOS/Android planned | Windows, Mac, Linux, web, Android (free), iOS ($24.99) |
| Best for | Learning a subject without building anything | Maximum control over long-term retention |
| Tier | MindShark | Anki |
|---|---|---|
| Free | 1 Deep Dive/day, 2 Bites/day, no ads | Free on desktop, AnkiWeb, and Android |
| Paid | Premium $7.99/mo or $49.99/yr (7-day trial) | AnkiMobile for iOS $24.99 one-time |
Anki has no subscription. The iOS app (AnkiMobile) is a one-time $24.99 purchase that funds development.
Anki wins on retention mechanics and on price, full stop. If you are willing to write good cards and show up for the review queue every day, nothing beats it, and it costs nothing on most platforms.
MindShark wins on the part Anki refuses to do: the content. Most people who abandon Anki abandon it during the card-writing, not the reviewing. MindShark generates the course and the questions, explains the answers, and schedules the review — which is the whole job for someone who wants to learn a subject rather than run a memory system.
No. AnkiMobile is a one-time $24.99 purchase. Anki is free on desktop, AnkiWeb, and Android (AnkiDroid).
If you already use Anki daily, yes — it is a one-time payment and it funds the project. If you have not built a deck yet, start on desktop or web first.
MindShark schedules review of missed questions automatically and adapts difficulty; it is not user-configurable the way Anki's scheduler is.
No. MindShark generates its own Deep Dives per topic rather than importing cards.