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Anki

Hacker Approved

An open-source flashcard app whose spaced repetition scheduling reliably drills vocabulary and facts into memory; critics find setup and settings complicated and the paid iOS app pricey.

Summarized from 232 comments.

An open-source flashcard app whose spaced repetition scheduling reliably drills vocabulary and facts into memory; critics find setup and settings complicated and the paid iOS app pricey.

recommend
136
criticize
50
months recommended
12 of 13
median owned, 11 owners said
6 years

Why people love it

  • Effective for memorization and languages · 11

    I'm personally very fond of flashcards (Anki). Yes, memorizing words is just a part of language learning, but it's important and FSRS is extremely good at it.

    Dec 2025 · comment

    For a long time, Anki was really useful for me, it pushed my Spanish and German forward, but now I plan to decrease the number of reviews significantly.

    Jan 2026 · comment

    When I was doing rote memorization and flashcards frequently (some years ago now) I observed that remembering things became a lot easier for me.

    Jul 2026 · comment
  • Smart scheduling targets weak points · 5

    I'm personally very fond of flashcards (Anki). Yes, memorizing words is just a part of language learning, but it's important and FSRS is extremely good at it.

    Dec 2025 · comment

    Flashcard programs like Anki are really great because it identifies where you need more work and drills you on your weak points

    Jul 2026 · comment

    Anki solves this problem: all words you learn via flashcards have a (roughly) equal chance of being remembered

    Nov 2025 · comment
  • Highly customizable card templates · 5

    once I learned to edit and update the cards and add my own, I really began to understand how to boil concepts down

    Feb 2026 · comment

    You can customise note types with CSS and Javascript, which means that you can make cards look however you want.

    Dec 2025 · comment

    I can really appreciate the way Anki uses notes, models, and templates to essentially create "virtual cards"

    Dec 2025 · comment
  • Free, open source, forkable · 4

    This is an open source flashcards app, with minimalistic (one could say primitive) UI and no gamification whatsoever

    Dec 2025 · comment

    Considering that anki can always be forked if development goes being hostile towards users

    Feb 2026 · comment

    Free open source software like Anki & xiehanzi can save you from using all those tokens.

    Apr 2026 · comment

What people warn about

  • Paid iOS app hard to recommend · 3

    I bought iOS Anki app for myself many years ago. What I found hard is to recommend it to others

    Feb 2026 · comment

    I think it is too expensive especially since I can easily afford that having a job and all

    Feb 2026 · comment

    very hard to recommend mobile app to people if you need to add these kind of "workarounds"

    Feb 2026 · comment
  • Complicated setup, sync and settings · 5

    I've tried several times before to install syncserver using those pip instructions, on multiple platforms, without success.

    Feb 2026 · comment

    The pip instructions are bad. Typical Python things: Non-reproducible, not involving a proper lock file.

    Feb 2026 · comment

    all claiming the default settings are terrible and you have to set up an elaborate bunch of settings

    Jul 2026 · comment
  • Reviews feel tedious and unrewarding · 3

    For a long time, Anki was really useful for me, it pushed my Spanish and German forward, but now I plan to decrease the number of reviews significantly.

    Jan 2026 · comment

    Anki, conversely, is designed for efficiency, which means it's designed to be as painful and unrewarding as possible

    Aug 2026 · comment

    the software I used to remember things tells me "this thing is hard for you to remember so you should just give up."

    Aug 2026 · comment
  • Custom-built alternatives suit better · 3

    It ended up being easier to Vibe code a bespoke one that took the input in a format that was easier to provide.

    Dec 2025 · comment

    I've been vibe coding my own SRS software that is vastly superior to my learning style than Anki

    Sep 2026 · comment

    vibe coding my own SRS software that is vastly superior to my learning style than Anki

    Sep 2026 · comment

What hackers pick instead

Every quote

The 40 most detailed of 232 comments. Each links to the original.

  1. I'm personally very fond of flashcards (Anki). Yes, memorizing words is just a part of language learning, but it's important and FSRS is extremely good at it.

    Recommends · Dec 2025 · in “The Whole App is a Blob”

  2. For a long time, Anki was really useful for me, it pushed my Spanish and German forward, but now I plan to decrease the number of reviews significantly.

    Mixed · Jan 2026 · in “I did 301,432 flashcard reviews in 2025”

  3. When I was doing rote memorization and flashcards frequently (some years ago now) I observed that remembering things became a lot easier for me.

    Recommends · Jul 2026 · in “A Love Letter to Flashcards”

  4. Flashcard programs like Anki are really great because it identifies where you need more work and drills you on your weak points

    Recommends · Jul 2026 · in “A Love Letter to Flashcards”

  5. This is an open source flashcards app, with minimalistic (one could say primitive) UI and no gamification whatsoever

    Recommends · Dec 2025 · in “Ask HN: Is building a calm, non-gamified learning app a mistake?”

  6. once I learned to edit and update the cards and add my own, I really began to understand how to boil concepts down

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  7. You can customise note types with CSS and Javascript, which means that you can make cards look however you want.

    Recommends · Dec 2025 · in “Hashcards: A plain-text spaced repetition system”

  8. all the time spent in Anki laid a rock-solid foundation that merely needed activation in the right environment

    Recommends · Feb 2026 · in “What's the best way to learn a new language?”

  9. Anki solves this problem: all words you learn via flashcards have a (roughly) equal chance of being remembered

    Recommends · Nov 2025 · in “Show HN: Anki-LLM – Bulk process and generate Anki flashcards with LLMs”

  10. I can really appreciate the way Anki uses notes, models, and templates to essentially create "virtual cards"

    Recommends · Dec 2025 · in “Hashcards: A plain-text spaced repetition system”

  11. Learn to use Anki to leverage spaced repetition to intentionally put things into your long term memory.

    Recommends · Jul 2026 · in “Ask HN: Advice for first-year CS students?”

  12. it has nearly every feature of the desktop client, including full scripting support for card contents

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  13. I bought iOS Anki app for myself many years ago. What I found hard is to recommend it to others

    Mixed · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  14. Anki is and was truly a blessing. Not sure I would have gotten through my studies without it.

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  15. Spaced repetition software like Anki for vocabulary learning is a huge improvement I think.

    Recommends · Sep 2026 · in “Learning another language may be one of the best ways to keep your brain healthy”

  16. I think it is too expensive especially since I can easily afford that having a job and all

    Mixed · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  17. You can edit the structure of the card templates so they're the 'right way around' for you

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  18. Considering that anki can always be forked if development goes being hostile towards users

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  19. I've personally both had and seen great success with the Anki approach for specific terms

    Recommends · Jul 2026 · in “Launch HN: Bloomy (YC S26) – AI-powered mastery learning for K-12”

  20. Free open source software like Anki & xiehanzi can save you from using all those tokens.

    Recommends · Apr 2026 · in “中文 Literacy Speedrun II: Character Cyclotron”

  21. I find spaced repetition Anki flash cards surpisingly effective for this kind of thing.

    Recommends · Mar 2026 · in “Shell Tricks That Make Life Easier (and Save Your Sanity)”

  22. It improved my grades so much in college that I spent the 25 bucks as a broke student

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  23. I've found Spaced Repetition (via Anki etc) to be great for remembering these things.

    Recommends · Sep 2026 · in “Small programming tricks”

  24. Anki is finally usable after they ditched the hot garbage algorithm they were using.

    Recommends · Jul 2026 · in “A Love Letter to Flashcards”

  25. There are regular updates and a big community contributing knowledge, add-ins, etc.

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  26. I've tried several times before to install syncserver using those pip instructions, on multiple platforms, without success.

    Criticizes · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  27. Anki, conversely, is designed for efficiency, which means it's designed to be as painful and unrewarding as possible

    Criticizes · Aug 2026 · in “AI Isn't Outthinking Mathematicians. It's Out-Remembering Them”

  28. the software I used to remember things tells me "this thing is hard for you to remember so you should just give up."

    Criticizes · Aug 2026 · in “AI Isn't Outthinking Mathematicians. It's Out-Remembering Them”

  29. It ended up being easier to Vibe code a bespoke one that took the input in a format that was easier to provide.

    Criticizes · Dec 2025 · in “Ask HN: Is building a calm, non-gamified learning app a mistake?”

  30. The pip instructions are bad. Typical Python things: Non-reproducible, not involving a proper lock file.

    Criticizes · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  31. all claiming the default settings are terrible and you have to set up an elaborate bunch of settings

    Criticizes · Jul 2026 · in “A Love Letter to Flashcards”

  32. I've been vibe coding my own SRS software that is vastly superior to my learning style than Anki

    Criticizes · Sep 2026 · in “Responsible Release of AI-Generated Mathematics”

  33. in current Anki versions you need to manually update the parameters to optimize your learning

    Criticizes · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  34. Anki never worked out for me (too hard to use, too hard to sync, everything too complicated)

    Criticizes · Dec 2025 · in “Hashcards: A plain-text spaced repetition system”

  35. very hard to recommend mobile app to people if you need to add these kind of "workarounds"

    Criticizes · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  36. vibe coding my own SRS software that is vastly superior to my learning style than Anki

    Criticizes · Sep 2026 · in “Responsible Release of AI-Generated Mathematics”

  37. getting the llm to ingest high quality posts/books about the subject and use those to generate anki cards has helped a lot

    Recommends · Dec 2025 · in “Two kinds of vibe coding”

  38. Relieved at that part where they say there are no investors involved, makes the whole thing a whole lot less risky.

    Recommends · Feb 2026 · in “Ownership of open source flashcard app Anki transferred to for-profit AnkiHub”

  39. I find that I get good-enough grades by just feeding ChatGPT the test reviews and having it create Anki flashcards

    Mixed · Dec 2025 · in “UK accounting body to halt remote exams amid AI cheating”

  40. Anki is inefficient compared to better methods, but more efficient than haphazardly trying to memorize things

    Mixed · Jul 2026 · in “A Love Letter to Flashcards”

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