You read the chapter. You highlighted the good bits. Two weeks later, you can’t remember a single thing from it.
Anki for ADHD is one of the most useful fixes I’ve found for that problem. It’s a free flashcard app that decides when you should revise each fact, so you don’t have to remember to remember.
This guide covers what Anki is, why it can suit an ADHD brain, and a deliberately tiny setup that survives the days you skip it.
What Anki Is (and Why It Isn’t Just Flashcards)
Anki is a free, open-source flashcard app that uses spaced repetition to schedule each card just before you would forget it. You see a question, try to recall the answer, flip the card, and rate how hard it was. Anki then picks the next review date for you.
That scheduling is the whole trick. Easy cards come back in weeks or months. Hard cards come back in days. You never decide what to revise, because the app does.
Here’s what you need to know on cost and platforms:
- Desktop (Windows, Mac, Linux): free
- Android (AnkiDroid): free
- iPhone and iPad (AnkiMobile): a one-off paid app
- AnkiWeb: free syncing between devices
You can download it from the official Anki site and read the Anki manual when you want to go deeper.
Why Spaced Repetition Suits the ADHD Brain
Spaced repetition suits ADHD because it removes the planning, remembering, and deciding that revision usually depends on, and those are the executive functions ADHD makes unreliable. CHADD’s overview of executive function lists working memory, planning, and task initiation among them.
Two well-replicated findings sit underneath the method:
- The spacing effect. A large meta-analysis of distributed practice (Cepeda et al., 2006) found that spreading study sessions over time beats cramming for long-term retention.
- Retrieval practice. Roediger and Karpicke (2006) showed that testing yourself on material produces better long-term memory than re-reading it.
To be straight with you: I’m not aware of strong trials testing Anki specifically on people with ADHD. The case for it rests on how well spacing and retrieval work in general, plus how neatly the app handles the parts of studying that ADHD makes hard.
Here’s how those line up:
- Forgetting what to study: Anki shows you today’s due cards automatically.
- Boredom with re-reading: each card is a quick question, which is closer to a mini game.
- Time blindness: a session is a queue you can finish, not an open-ended “go revise.”
If time estimation is a struggle for you in general, time estimation drills for the ADHD brain pair well with this.
Anki Basics in Five Minutes
Anki has four moving parts, and you only need these to start:
- Card: one question on the front, one answer on the back
- Deck: a folder of cards on one topic
- Review: a daily queue of cards that are due
- Rating buttons: Again, Hard, Good, and Easy, which tell Anki how well you remembered
The daily loop looks like this:
- Open Anki and tap your deck
- Read the question and try to answer it in your head
- Flip the card
- Tap the button that matches how it went
If you got it wrong or had to guess, tap Again. If you knew it, tap Good. That’s honestly 90% of the skill.
Pro-tip from ADHD m8: Be harsh with yourself on the answer, not on yourself as a person. “Sort of knew it” is an Again. A forgiving rating teaches Anki the wrong schedule.
How to Make Good Anki Cards When You Have ADHD
Good Anki cards for ADHD are short, specific, and each test exactly one fact. A card that asks you to recall a whole paragraph will feel like homework, and ADHD brains avoid homework.
A few rules that keep cards easy to review:
- One fact per card. Split “list the five causes of X” into five small cards.
- Ask a question, not “what do you know about X.” Specific prompts are faster to answer.
- Use your own words. Wording from your head sticks better than copy-pasted text.
- Add a picture when you can. Visual cues give your memory a second hook.
- Make cards when you learn, not in a big batch. Two cards from today’s reading beat a 50-card backlog you’ll dread.
Here’s a weak card and a strong one:
- Weak: “Explain how working memory is affected in ADHD.”
- Strong: “Which executive function holds a thought in mind while you do something else?” → “Working memory.”
Cards also don’t have to be academic. People use Anki for languages, driving theory, medical or coding exams, names of coworkers, and even the steps of a routine they keep forgetting. If you read a lot, it’s a good partner for how to read books with ADHD: finish a chapter, then turn the two or three ideas you care about into cards.
An ADHD-Friendly Anki Setup That Survives Bad Weeks
An ADHD-friendly Anki setup keeps the daily load small, because Anki’s default settings assume a consistent routine that ADHD rarely provides. The defaults allow 20 new cards and up to 200 reviews a day, which can snowball fast.
Try this starting point instead:
- New cards per day: 5 to 10. You can always raise it later.
- Session length: 5 minutes. A tiny session is easier to start than a 30-minute one.
- Attach it to an existing habit. Do it with your morning coffee, or on the commute. Habit stacking works because it removes the “when should I?” decision.
- Use a phone widget or home-screen shortcut. Every extra tap before the first card is a chance to drift off.
- Keep it on one device. Sync is nice, but choosing “which device?” is another decision.
It also helps to start with one deck about something you actually care about. Interest-driven motivation is real with ADHD, so a deck about a hobby will survive far longer than a deck about something you think you should learn.
For sessions you struggle to start, try pairing Anki with the 10-3 focus timer method or a body doubling session.
What to Do When Your Anki Backlog Explodes
An Anki backlog happens when you skip a few days and the due count balloons, and the right response is to shrink the queue rather than abandon the app. The pile feels like proof you’ve failed. It isn’t. It’s just a number that needs trimming.
Here’s the recovery plan:
- Set new cards to zero until the pile is manageable.
- Cap your daily reviews at a number you can finish, like 50, and let the rest wait.
- Do a short session today, even if it’s two minutes. Showing up briefly beats waiting for a perfect restart.
- Delete or simplify cards that feel awful. If you dread a card, it’s badly written, not a personal flaw.
Anki also has a built-in option for newer versions called FSRS, a more modern scheduling algorithm that you can turn on in the deck options. Check the Anki manual for how to enable it, since the steps change between versions.
The goal is a system that survives a bad week, the same principle behind the pocket pen task capture system. And if you’re deciding between apps and paper for different jobs, The Paper Brain explains where analog tools still win.
FAQ: Anki and ADHD
Q: Is Anki good for ADHD? A: Anki can be a good fit for ADHD because it automates scheduling and keeps sessions short. There’s no strong ADHD-specific trial evidence for the app itself, but the spacing effect and retrieval practice it relies on are well supported in memory research.
Q: How many new Anki cards a day should I learn with ADHD? A: Start with 5 to 10 new cards a day. A small, consistent number beats a large number you abandon after a week.
Q: Is Anki free? A: Anki is free on desktop and Android. The iPhone and iPad app, AnkiMobile, is a one-off paid purchase, and AnkiWeb syncing is free.
Q: What if I miss days and my reviews pile up? A: Set new cards to zero, cap your daily reviews, and do a short session. Anki is forgiving, and you can recover from a missed week without starting over.
Key Takeaways
- Anki is a free, open-source flashcard app that uses spaced repetition to schedule each card just before you would forget it.
- Spaced practice produces better long-term retention than cramming, according to Cepeda et al.’s 2006 meta-analysis of distributed practice.
- Testing yourself on material beats re-reading it for long-term memory, as shown by Roediger and Karpicke in 2006.
- The default Anki limits of 20 new cards and 200 reviews a day are often too heavy for ADHD, so 5 to 10 new cards and a 5-minute session is a safer start.
- A growing Anki backlog is fixed by setting new cards to zero and capping daily reviews, not by quitting the app.
Conclusion
Anki won’t fix ADHD, but it takes a few of the hardest parts of learning off your plate: deciding what to revise and remembering to revise it. Keep the cards small, the sessions short, and the rules forgiving. For cards that stick even better, try writing them with ADHD mnemonics.
Next step: Install Anki, make three cards from something you learned today, and do one two-minute review tomorrow morning.
Have you tried Anki or another spaced repetition app with ADHD? Share it with us on Instagram.