Anki is a free flashcard program built around a simple promise: spend more time on challenging material and less on what you already know. After each review you rate your recall, and Anki schedules that card to reappear just before you are likely to forget it. Desktop apps cover Windows, macOS, and Linux, with AnkiMobile for iOS, AnkiDroid for Android, and AnkiWeb for study and sync in a browser. The project is community-driven and open source, with shared decks and add-ons extending the core.[1]
Quick verdict
Anki is a free flashcard app that schedules each review for the moment you are most likely to forget, so study time concentrates on weak cards. Desktop, Android, and browser study with free sync cover most learners at zero cost, with iOS as a one-time purchase. Reviewers praise how well the repetition consolidates knowledge, while warning of a real learning curve. It suits long-haul memorizers who will invest a little setup for years of retained knowledge.[1][2]
What Anki does well
Recall-rated scheduling Rate your recall on each card and Anki schedules its next review for when you are most likely to forget it, concentrating effort on challenging material.[1]
Decks for focused study Group cards into decks so you can study one subject or exam at a time instead of reviewing the whole collection at once.[1]
Rich media cards Cards can carry audio, images, video, and scientific markup such as LaTeX, which suits language pronunciation and technical subjects.[1]
Custom layouts and timing Change flashcard layouts and the timing of reviews to match your subject, from dense medical decks to light daily vocabulary.[1]
Free cross-device sync The free AnkiWeb synchronization service syncs cards across desktop and mobile, and you can also study directly in a browser.[1]
Large collections Anki handles decks of more than 100,000 cards without problems, so years of accumulated study material stay in one place.[1]
Add-ons and shared decks Install add-ons to extend Anki with new features, and download decks other learners have shared to start a subject faster.[1][2]
Self-hosted sync option Advanced users can run the documented self-hosted sync server, bundled with the desktop app or as a standalone package, instead of using AnkiWeb.[1]
Who will love it
Students memorizing large volumes of material over months, such as medical or law exams, who benefit most from scheduled repetition.[1][2]
Language learners building long-term vocabulary with audio and image cues on cards they review daily.[1][2]
Self-directed learners who want a local-first collection with free sync and the option of a self-hosted server.[1][2]
Who should think twice
Several reviewers note a learning curve: settings and concepts take time to understand, and new users may need guides or videos before the workflow clicks.[1]
Learners who want a polished course with lessons included may find Anki bare: it is a memorization tool, and decks must be made or imported.[1][2]
iPhone and iPad users who object to paying for an app should weigh the one-time AnkiMobile purchase against free Android and web study.[1][2]
How people experience it
Two inspected G2 reviews of Anki from June 2025 and June 2026: a medical-practice student and a higher-education user, both describing spaced-repetition study results.
2 cited community sources. Only two short labelled excerpts are quoted here, both from G2 reviews inspected in October 2026. Reddit and forum threads were surveyed through search but no full original thread body was directly readable, so broader forum sentiment is not quoted.
Platforms and cost
How people experience it
Exact excerpt
I like the spatial repetition system it has; believe it or not, it really helps to consolidate information.
G2 review of Anki dated 6/21/2026, inspected October 2026. Short labelled excerpt under the 25-word-per-source limit; see the full review at the source URL.
Questions worth asking
Is there a good free alternative to Anki, or is Anki itself free?
Anki is free where most learners meet it: the desktop apps, AnkiDroid for Android, and AnkiWeb study and sync in a browser cost nothing. AnkiMobile for iPhone and iPad is a one-time paid purchase, and those purchases fund continued development. There is no subscription, so the honest monthly cost for most learners is zero.[1][2]
Do I need coding skills or technical setup to use Anki?
Yes. Anki is built for learners, not developers: you create decks, add cards, and press review, with no code involved. Custom card templates accept HTML and CSS for advanced styling, but that is optional. Add-ons extend the desktop app, and installing one is a download, not a programming task.[1][2]
What does Anki cost per month, and is there a subscription?
For most learners the monthly cost is zero: desktop, Android, and web sync are free with no subscription. The only price is AnkiMobile for iOS, a single one-time purchase rather than a recurring fee. Official sources do not list a subscription tier, so budget for the iOS app once if you study on iPhone or iPad.[1][2]
Can I self-host Anki or keep my flashcards off third-party servers?
Yes, in two senses. Your collection already lives locally on your device, and the free AnkiWeb service syncs it across devices. Advanced users who cannot or do not wish to use AnkiWeb can run the documented self-hosted sync server instead, bundled with the desktop app or as a standalone Python or Rust package, though the documentation warns this is an at-your-own-risk feature for people comfortable with networking and the command line.[1][2]
Sources and editorial review
Source research. Reviewed on October 7, 2026. Written by Sanjib Sah. AI assisted; reviewed by a human editor.
We have not run or tested this product.
Two inspected G2 reviews of Anki from June 2025 and June 2026: a medical-practice student and a higher-education user, both describing spaced-repetition study results. Only two short labelled excerpts are quoted here, both from G2 reviews inspected in October 2026. Reddit and forum threads were surveyed through search but no full original thread body was directly readable, so broader forum sentiment is not quoted.
- Anki - powerful, intelligent flashcards
official · Observed October 7, 2026
Official homepage: free AnkiWeb sync, media support, customization, 100k+ card decks, add-ons, community project, desktop downloads for Windows, macOS, and Linux, current release notes.
- Anki Docs index
official · Observed October 7, 2026
Documentation index listing the desktop manual, AnkiMobile docs, FAQs, add-on author docs, and developer docs.
- AnkiMobile introduction
official · Observed October 7, 2026
AnkiMobile is a paid iOS app; purchases fund development. No stored data shared by default; optional sync falls under the AnkiWeb privacy policy.
- Self-Hosted Sync Server
official · Observed October 7, 2026
Documents the self-hosted sync server for advanced users who do not wish to use AnkiWeb, with packaged, pip, cargo, source, and Docker installs and multi-user setup.
- Anki G2 review by Cesar C., 2026
community · Observed October 7, 2026
G2 review of Anki by Cesar C., Student, Medical Practice, dated 6/21/2026, inspected October 2026: 4.6 out of 5 overall from 43 reviews; praises the repetition system for consolidating information.
- Anki G2 review by Verified User, 2025
community · Observed October 7, 2026
G2 review of Anki by a Verified User in Higher Education dated 6/5/2025, inspected October 2026: describes spaced repetition as helpful when learning material.