Learning · flashcard app
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 · commentFor 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 · commentWhen 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 · commentSmart 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 · commentFlashcard programs like Anki are really great because it identifies where you need more work and drills you on your weak points
Jul 2026 · commentAnki solves this problem: all words you learn via flashcards have a (roughly) equal chance of being remembered
Nov 2025 · commentHighly 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 · commentYou can customise note types with CSS and Javascript, which means that you can make cards look however you want.
Dec 2025 · commentI can really appreciate the way Anki uses notes, models, and templates to essentially create "virtual cards"
Dec 2025 · commentFree, open source, forkable · 4
This is an open source flashcards app, with minimalistic (one could say primitive) UI and no gamification whatsoever
Dec 2025 · commentConsidering that anki can always be forked if development goes being hostile towards users
Feb 2026 · commentFree 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 · commentI think it is too expensive especially since I can easily afford that having a job and all
Feb 2026 · commentvery hard to recommend mobile app to people if you need to add these kind of "workarounds"
Feb 2026 · commentComplicated 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 · commentThe pip instructions are bad. Typical Python things: Non-reproducible, not involving a proper lock file.
Feb 2026 · commentall claiming the default settings are terrible and you have to set up an elaborate bunch of settings
Jul 2026 · commentReviews 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 · commentAnki, conversely, is designed for efficiency, which means it's designed to be as painful and unrewarding as possible
Aug 2026 · commentthe software I used to remember things tells me "this thing is hard for you to remember so you should just give up."
Aug 2026 · commentCustom-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 · commentI've been vibe coding my own SRS software that is vastly superior to my learning style than Anki
Sep 2026 · commentvibe coding my own SRS software that is vastly superior to my learning style than Anki
Sep 2026 · comment
What hackers pick instead
- AnkiDroidFree open-source flashcard app for Android; people praise its reliability and custom sync support, with notification problems and worries about the Anki ownership change as caveats.23recommend
- HashcardsPlain-text, offline, open-source spaced repetition app keeping cards in markdown under git, with few settings. Caveat: reviews follow a fixed scheduler.13recommend
- Mochi flashcard appPeople recommend it as a flexible alternative to Anki, with powerful templating and notebook mode. Caveat: it is Electron-based, a dealbreaker for some.9recommend
Every quote
The 40 most detailed of 232 comments. Each links to the original.
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”
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”
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”
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”
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?”
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”
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”
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?”
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”
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”
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?”
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”
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”
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”
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”
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”
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”
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”
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”
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”
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)”
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”
I've found Spaced Repetition (via Anki etc) to be great for remembering these things.
Recommends · Sep 2026 · in “Small programming tricks”
Anki is finally usable after they ditched the hot garbage algorithm they were using.
Recommends · Jul 2026 · in “A Love Letter to Flashcards”
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”
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”
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”
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”
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?”
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”
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”
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”
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”
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”
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”
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”
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”
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”
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”
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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