The 8 Best Active Recall Apps in 2026
We reviewed 8 study apps on the two things active recall needs: questions that make you answer from memory, and reviews that come back before you forget. Here is how they rank.
The best app for active recall is StudyGlen. It turns your own PDF, photo of notes or YouTube video into flashcards and a quiz — multiple choice, true/false, short answer and fill-in-the-blank, with an explanation on every answer — then schedules every review with FSRS-6 by default. One AI deck or quiz a day is free. Anki is the best free option if you will write every card yourself.
Rereading feels productive because the page looks familiar — but familiar is not the same as remembered. In a 2006 study by Roediger and Karpicke, students who practised recalling a passage remembered substantially more of it a week later than students who reread it, even though the rereaders felt more confident. An active recall app makes that retrieval the default every time you study.
What is active recall?
Active recall is studying by pulling an answer out of memory before you look at it — answering a flashcard, a practice question or a blank-page prompt — instead of rereading, highlighting or rewatching. The effort of retrieving is what strengthens the memory, and every miss shows you exactly what to review. Researchers call it retrieval practice, and the benefit is known as the testing effect.
The evidence is unusually strong. In Roediger and Karpicke (2006), students who took recall tests on a prose passage retained substantially more of it two days and one week later than students who reread it the same number of times. In Karpicke and Blunt (2011), retrieval practice produced more learning than elaborative studying with concept mapping — including on test questions that required inferences, so it is not only for memorising facts.
A 2013 review of ten common study techniques by Dunlosky and colleagues gave its top "high utility" rating to just two: practice testing, which is active recall, and distributed practice, which is spaced repetition. Rereading and highlighting were rated low utility.
So the app you pick matters. A good active recall app does three jobs: it gives you questions worth answering, it makes you produce the answer instead of recognising it, and it brings each question back on a schedule. The apps below differ most on the first job — who writes the questions.
Active recall vs spaced repetition: what's the difference?
Active recall is how you review: you answer from memory. Spaced repetition is when you review: each item returns after a gap that grows every time you remember it, timed for just before you would forget. One is the method, the other is the schedule.
They work best together, and running both is the job of a study app. Active recall without a schedule drifts into cramming — testing everything the night before. Spaced repetition without recall is just rereading at intervals. An app that asks you to answer first, records how it went and then schedules the next review gives you both in every session.
Where apps differ is the scheduler. FSRS, the open-source algorithm StudyGlen runs on every deck by default, predicts how likely you are to remember each card and times the next review to match. SM-2, still the default in Anki and RemNote, grows intervals with fixed multipliers. Knowt, Quizlet and Gizmo have spaced repetition modes but do not publish their algorithm. Our spaced repetition apps comparison covers the algorithms in depth, and our active recall flashcards guide shows how to write and review good cards.
Active recall means answering from memory; spaced repetition means reviewing at growing intervals. You want both. StudyGlen writes the questions from your own material and schedules every review with FSRS-6 by default, so each session is a recall attempt at the moment it does the most good.
Which active recall app should you use?
A quick way to decide:
- 1.
You want the questions written for you from your own slides, PDFs, notes or lecture videos → StudyGlen. One upload gives you flashcards and a practice quiz with an explanation on every answer, scheduled with FSRS-6.
- 2.
You want a free app with total control and don't mind writing every card → Anki. Turn on FSRS in the deck options.
- 3.
You take detailed notes and want flashcards inside them → RemNote.
- 4.
You are leaving Quizlet and want its study modes free → Knowt, which imports Quizlet sets and keeps Learn, Practice Test and Spaced Repetition free on your own sets.
- 5.
You mainly want sets other people have already made → Quizlet for the largest library, or Brainscape for expert-certified exam decks.
- 6.
You study more when it feels like a game → Gizmo, with Hearts, streaks, XP and leagues.
- 7.
You want a simple, offline flashcard app with Markdown and an FSRS option → Mochi.
For most students the deciding factor is time. If writing the questions takes longer than answering them, active recall is hard to keep up. That is where AI earns its place — as long as the app still makes you answer from memory and schedules the next review.
The 8 best active recall apps, ranked
Each card shows how the app tests you, how it schedules reviews, what the free plan includes and where it does better than StudyGlen. Not sure which kind of app you need? Start with Which active recall app should you use.
- किसके लिए सबसे अच्छा
- Students who want flashcards and practice questions made from their own slides, PDFs and notes, with spaced repetition built in
- How it tests you
- Flashcards (basic, cloze, image) and quizzes: multiple choice, true/false, short answer and fill-in-the-blank, with an explanation on every answer
- Review schedule
- FSRS-6 by default on every deck — nothing to switch on
- फ्री टियर
- One AI deck or quiz a day on a free account; unlimited review of your decks
- पेड शुरू होता है
- Credit packs from $4.99 for 10 generations — pay once, credits never expire
- जहाँ यह आगे है
- Flashcards and a practice quiz from the same PDF, photo or YouTube video, FSRS-6 by default, AI images on cards that need a visual, and 41 content languages.
- जहाँ यह पीछे है
- One free AI generation a day, no public library of shared sets, and no direct Quizlet import (upload Quizlet's text export instead).
फायदे
- AI flashcards and quizzes from PDFs, photos of notes, pasted text and YouTube
- FSRS-6 spaced repetition by default — more accurate than SM-2, Anki's default
- An explanation on every quiz answer
- Set a deadline and StudyGlen paces new cards so the deck is fresh on the day
- AI-generated images on cards that need a visual
- iOS and Android apps with offline study; imports Anki decks
नुकसान
- One AI generation a day on the free plan
- No public library of shared sets
- No direct Quizlet import (the text export works)
चेक किया गया November 2026
- किसके लिए सबसे अच्छा
- Medical students, language learners and anyone who wants full control and shared decks
- How it tests you
- Flashcards: basic, reversed, type-in answer and cloze, with image occlusion built in
- Review schedule
- SM-2 by default; FSRS built in — switch it on in the deck options
- फ्री टियर
- Free on Windows, Mac, Linux, Android (AnkiDroid) and the web (AnkiWeb)
- पेड शुरू होता है
- AnkiMobile for iPhone and iPad: $24.99 one-time
- StudyGlen से बेहतर
- Free with no limits on desktop, Android and the web, a huge library of shared decks and add-ons, and image occlusion built in.
- StudyGlen से कमज़ोर
- No built-in AI or PDF import, so you write or download every card; SM-2 is still the default scheduler; the iPhone app costs $24.99.
फायदे
- Free and open source on desktop, Android and the web
- FSRS scheduler built in (switch it on)
- Type-in answers, cloze and image occlusion
- Large shared-deck and add-on ecosystem
नुकसान
- No built-in AI: you write or download every card
- SM-2 is the default; FSRS has to be switched on
- Steep learning curve
- iPhone app is a $24.99 one-time purchase
चेक किया गया November 2026
- किसके लिए सबसे अच्छा
- University students who take detailed notes and want cards made from them
- How it tests you
- Flashcards made inside your notes (basic, cloze, image occlusion), plus AI cards and quizzes on a monthly allowance
- Review schedule
- SM-2 by default; FSRS available as an opt-in beta
- फ्री टियर
- Unlimited notes and flashcards on unlimited devices, 3 annotated PDFs, 250 AI credits a month
- पेड शुरू होता है
- Pro $8/month billed yearly ($96); Pro with AI $18/month billed yearly ($216)
- StudyGlen से बेहतर
- Cards live inside your notes, with PDF annotation, linked ideas across your knowledge base and Anki import that keeps your review history.
- StudyGlen से कमज़ोर
- Built for note-takers more than quick decks, free AI cards from files are limited to a few runs, and FSRS is still a beta.
फायदे
- Notes and flashcards in one tool
- Imports Anki decks with review history
- PDF annotation (3 documents free)
- Desktop, web and mobile apps
नुकसान
- Takes setup if you don't already take notes in RemNote
- AI cards from files are limited on the free plan
- FSRS is an opt-in beta; SM-2 by default
चेक किया गया November 2026
- किसके लिए सबसे अच्छा
- Quizlet users who want the same study modes without paying, and don't mind ads
- How it tests you
- Flashcards, Learn, Practice Test, Match and Knowt Play games
- Review schedule
- A Spaced Repetition mode; the algorithm is not published
- फ्री टियर
- Unlimited sets and every study mode on your own sets, including Spaced Repetition; 1 AI summary a month; ads
- पेड शुरू होता है
- Ultra $24.99/month or $149.99/year
- StudyGlen से बेहतर
- Every study mode free on your own sets, Quizlet set import, and millions of public sets, notes and exam resources.
- StudyGlen से कमज़ोर
- One free AI summary a month, ads on the free plan, and the spaced-repetition algorithm is not published.
फायदे
- Free Learn, Practice Test, Match and Spaced Repetition modes
- Imports Quizlet sets
- Millions of public sets, notes and exam resources
- iOS and Android apps
नुकसान
- One AI summary a month on the free plan
- Ads on the free plan
- Spaced-repetition algorithm not published
चेक किया गया November 2026 · वेंडर द्वारा पब्लिश नहीं किया गया: Its spaced-repetition algorithm. The Ultra price is the US price from its help center and the US App Store; prices can differ by country.
- किसके लिए सबसे अच्छा
- Students who want ready-made sets for common courses and an interface they already know
- How it tests you
- Flashcards, Learn (mixed and written questions), Test and Match
- Review schedule
- Spaced Repetition in Flashcards, on the website only; the algorithm is not published
- फ्री टियर
- Flashcards, including Spaced Repetition on the website; a limited number of Learn rounds per set; ads
- पेड शुरू होता है
- Quizlet Plus $44.99/year or $9.99/month (US App Store)
- StudyGlen से बेहतर
- Millions of user-made sets for almost any course, plus Learn, Test and Match modes most students already know.
- StudyGlen से कमज़ोर
- Full Learn mode needs Quizlet Plus, the free plan has ads, and spaced repetition is web-only with no published algorithm.
फायदे
- Huge library of user-made sets
- Learn, Test and Match modes
- Type, paste or upload notes and Quizlet builds a set
- Polished iOS and Android apps
नुकसान
- Learn is limited to a few rounds per set without Plus
- Ads on the free plan
- Spaced repetition is web-only; algorithm not published
चेक किया गया November 2026 · वेंडर द्वारा पब्लिश नहीं किया गया: Its spaced-repetition algorithm. Prices are from its US App Store listing.
- किसके लिए सबसे अच्छा
- Exam and certification prep with ready-made, expert-certified decks
- How it tests you
- Flashcards: recall the answer, then rate your confidence from 1 to 5
- Review schedule
- Confidence-based spaced repetition; the algorithm is not published
- फ्री टियर
- Unlimited flashcards you make, AI for hundreds of cards, 2,500 pre-loaded flashcards, spaced repetition
- पेड शुरू होता है
- Pro $7.99/month billed yearly
- StudyGlen से बेहतर
- Expert-certified decks for exams, and a simple 1–5 confidence rating that decides how soon each card returns.
- StudyGlen से कमज़ोर
- Unlimited AI cards and Certified decks need Pro, images on cards need Pro, and the scheduling algorithm is not published.
फायदे
- Expert-made Certified decks
- AI cards from notes, PDFs, images and text
- Simple 1–5 confidence rating
- iOS and Android apps
नुकसान
- Unlimited AI and Certified decks need Pro
- Images and sounds on cards need Pro
- Scheduling algorithm not published
चेक किया गया November 2026 · वेंडर द्वारा पब्लिश नहीं किया गया: Its scheduling algorithm, and its month-to-month Pro price on the web.
- किसके लिए सबसे अच्छा
- High-school students (GCSE, AP) who study more when it feels like a game
- How it tests you
- Memorise mode quizzes: multiple choice and written questions on the key words of each card
- Review schedule
- Spaced repetition in Memorise mode; the algorithm is not published
- फ्री टियर
- Unlimited decks and quizzing; 15 Hearts, then a 10-minute wait; 2 AI imports a day
- पेड शुरू होता है
- Gizmo Unlimited, yearly or weekly; App Store prices from $6.99
- StudyGlen से बेहतर
- Imports Quizlet and Anki decks, turns studying into a game with streaks, XP and leagues, and has 1,000,000+ free public flashcards.
- StudyGlen से कमज़ोर
- Free quizzing pauses after 15 wrong answers, AI imports are capped at 2 a day, and paid prices are not published on its website.
फायदे
- AI flashcards from PDFs, slides, photos, recordings and websites
- Imports Quizlet and Anki decks
- Spaced repetition in Memorise mode
- Streaks, XP and leagues
नुकसान
- Free quizzing limited by Hearts
- 2 AI imports a day on the free plan, 20 minutes apart
- Paid prices not published on the web
चेक किया गया November 2026 · वेंडर द्वारा पब्लिश नहीं किया गया: Its spaced-repetition algorithm and its plan prices on the web; the App Store lists Gizmo Unlimited from $6.99 without plan lengths.
- किसके लिए सबसे अच्छा
- Note-takers and language learners who want a simpler Anki
- How it tests you
- Markdown flashcards, with hidden-text (cloze) and diagram cards
- Review schedule
- Its own algorithm by default; FSRS available as an option
- फ्री टियर
- Unlimited cards and decks, offline on every platform, no account needed; no sync; 5,000 AI tokens a month
- पेड शुरू होता है
- Pro $5/month billed yearly ($60)
- StudyGlen से बेहतर
- Free forever with no account, unlimited offline use on desktop and phone, and FSRS as an option.
- StudyGlen से कमज़ोर
- No sync between devices on the free plan, no deck generator from PDFs or videos, and you write most cards yourself.
फायदे
- Free forever, works offline, no account needed
- FSRS available as an option
- Mac, Windows, Linux, iOS and Android
- Markdown cards with templates
नुकसान
- No sync on the free plan
- Small AI allowance on the free plan (5,000 tokens a month)
- No deck generator from PDFs or videos
चेक किया गया November 2026
Active recall apps compared
| Feature | StudyGlen | Anki | RemNote | Knowt | Quizlet | Brainscape | Gizmo | Mochi |
|---|---|---|---|---|---|---|---|---|
| AI questions from your files | PDF, photo, text, YouTube | No | Text, PDF, slides (5 free runs) | PDF, image, slides, video (1/month free) | Notes, lecture audio | Notes, PDF, image, text | PDF, slides, photo, audio, web (2/day free) | No (AI writing help) |
| How it tests you | Cards + quiz: multiple choice, true/false, short answer, fill-in | Cards: type-in, cloze, image occlusion | Cards, cloze, image occlusion; AI quizzes | Cards, Learn, Practice Test, Match | Cards, Learn, Test, Match | Cards + 1–5 confidence | Multiple choice + written | Markdown cards, hidden text |
| Spaced repetition | FSRS-6 (default) | SM-2; FSRS opt-in | SM-2; FSRS beta | Yes (not named) | Web only (not named) | Confidence-based | Yes (not named) | Own; FSRS optional |
| Free plan | 1 AI deck or quiz a day; unlimited review | Free (iPhone app $24.99) | Unlimited cards; 250 AI credits/month | All study modes; 1 AI summary/month; ads | Flashcards; a few Learn rounds per set; ads | Unlimited own cards; AI for 100s of cards | 15 Hearts; 2 AI imports/day | Unlimited, offline; no sync |
| Cheapest paid | $4.99 once (10 generations) | $24.99 once (iPhone) | $8/month, billed yearly | $24.99/month or $149.99/year | $44.99/year (App Store) | $7.99/month, billed yearly | From $6.99 (App Store) | $5/month, billed yearly |
| Platforms | Web, iOS, Android | Desktop, web, iOS, Android | Desktop, web, iOS, Android | Web, iOS, Android | Web, iOS, Android | Web, iOS, Android | Web, iOS, Android | Desktop, web, iOS, Android |
Figures from each vendor's own pricing page, help centre or App Store listing, checked November 2026. "Not named" means the app has spaced repetition but does not publish its algorithm.
इसे एक्शन में देखें
देखें कि StudyGlen किसी भी स्टडी मटेरियल से सेकंडों में कैसे फ्लैशकार्ड बनाता है।
Frequently Asked Questions
What is the best app for active recall?
StudyGlen is the best active recall app for most students: it turns your own PDFs, photos of notes and YouTube videos into flashcards and a practice quiz, then schedules every review with FSRS-6 by default. One AI deck or quiz a day is free, and credit packs start at $4.99 with no expiry. If you would rather write every card yourself and pay nothing, Anki is the best free option.
Is active recall the same as spaced repetition?
No. Active recall is how you study: you answer from memory instead of rereading. Spaced repetition is when you study: each item comes back at growing intervals, just before you would forget it. A 2013 review by Dunlosky and colleagues rated practice testing and distributed practice — the research names for the two — as the only high-utility techniques of the ten it examined. A good app combines them: every review is a recall attempt, and an algorithm such as FSRS decides when it happens.
Is Anki active recall?
Yes. Anki shows the front of a card, you try to recall the answer before revealing it, and then you rate how well you remembered — that is active recall, and the Anki manual names active recall and spaced repetition as its two core principles. Type-in-the-answer cards and cloze deletions make the recall stricter. Anki does not write cards for you, and its default scheduler is SM-2; FSRS is built in but has to be switched on.
Is Quizlet active recall?
Partly. Flashcards mode is active recall if you answer before you flip, and its Spaced Repetition option, on the website only, uses your rating to decide when a card comes back. Learn can include written questions, where you type the answer instead of picking it. Browsing cards and matching games are closer to recognition than recall. Full Learn mode needs Quizlet Plus.
Can AI make active recall questions from my notes?
Yes, and it removes the slowest part of active recall: writing the questions. StudyGlen reads a PDF, a photo of your notes, pasted text or a YouTube video and writes flashcards plus multiple choice, true/false, short answer and fill-in-the-blank questions, with an explanation on every answer. RemNote, Knowt, Brainscape and Gizmo also generate cards from files, with tighter free limits. Check AI questions against your material, and make sure the app still asks you to answer from memory.
Which app uses active recall and spaced repetition together?
Every app on this list combines them; the difference is the schedule. StudyGlen runs FSRS-6 on every deck by default. Anki and RemNote use SM-2 by default, with FSRS as an opt-in. Mochi has its own algorithm with FSRS as an option. Knowt, Quizlet and Gizmo have spaced repetition modes but do not publish the algorithm, and Brainscape schedules cards by your 1–5 confidence rating.
Is there a free active recall app?
Yes. Anki is free on desktop, Android and the web (the iPhone app is $24.99 once). Mochi is free with unlimited offline cards. Knowt keeps every study mode free on your own sets, with ads. StudyGlen is free for unlimited review plus one AI deck or quiz a day, so you can make questions from your own material without paying.
Prefer active recall on your phone?
The free StudyGlen app for iPhone and Android runs the same FSRS reviews, and reviews work offline.
Try the #1 Active Recall App Free
Upload a PDF, paste your notes or snap a photo — get flashcards and a practice quiz, with FSRS-6 deciding when each question comes back
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PDF से फ्लैशकार्ड
अपनी PDF अपलोड करें और AI को FSRS स्पेस्ड रिपीटिशन वाले स्मार्ट फ्लैशकार्ड डेक बनाने दें। लेक्चर नोट्स, टेक्स्टबुक और स्टडी मटीरियल के लिए परफेक्ट।
टूल खोलेंनोट्स से क्विज़
अपने लेक्चर नोट्स, स्टडी नोट्स या क्लास नोट्स पेस्ट करें। हमारा AI आपके नोट्स पढ़ता है और एक्सप्लेनेशन के साथ क्विज़ बनाता है — ताकि आपको जो लिखा वह वाकई याद रहे।
टूल खोलेंइमेज से फ्लैशकार्ड
अपने हैंडरिटन नोट्स, टेक्सटबुक पेज या किसी भी प्रिंटेड मटीरियल की फोटो अपलोड करें। हमारा OCR टेक्स्ट एक्सट्रैक्ट करता है और AI FSRS स्पेस्ड रिपीटिशन वाले फ्लैशकार्ड डेक बनाता है।
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