Comparison

ZemoMemo vs Flashcards Open Source App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ZemoMemo

Features
Read full description

ZemoMemo: Learn fast. Remember forever. ZemoMemo helps you master massive amounts of information without forgetting old concepts. We blend the speed of cramming with the retention of spaced repetition, powered by the research-grade FSRS-6 model, so you can learn fast *and* remember for the long term. WHO IT’S FOR * High school & AP students * College & grad school (incl. pre-med/med) * Language learners * Professional certifications (e.g., CompTIA A+), and lifelong learners WHY ZEMOMEMO * Start learning in under 1 minute * Achieve same-day mastery with guided Learn mode * “Stickiness” score tracks how long a card will stay in your memory * Smart, less than 5-minute Refresh sessions resurface cards right before you forget * Gamified metrics & activities keep you motivated * Scientific FSRS-6 scheduling for proven retention STUDY MODES * Read - build familiarity at your pace * Learn - active recall with confidence marking * Refresh - quick, targeted reviews to boost “stickiness” * Test - check mastery when it counts * Match - mix it up for variety and speed BRING YOUR CONTENT * Import from Quizlet * Import from Anki * Create with AI: generate decks and courses from a prompt, notes, or a PDF textbook * Specialized plugins for use cases like Japanese language learning (No need to start from scratch. Bring your existing material.) DECK TYPES • Zemodeck: Simple list of flashcards; perfect for smaller sets and quick sprints (Quizlet users: Learn mode is free). • Superzemo: A collection of Zemodecks for big topics (AP courses, college classes, med school) that splits massive decks into digestible bites - so you never forget old info while learning new material. HOW IT WORKS 1. Learn Mode gives each card an initial stickiness score (how many days it’s likely to stay in memory). 2. When you’re about to forget, ZemoMemo prompts a quick Refresh session (less than 5 minutes). 3. Correct refreshes raise the stickiness score. 4. Higher stickiness = longer retention and better performance over time. ZEMOCOURSES LIBRARY Ready-made, expert-created courses to learn faster: * AP: Chemistry, Biology, World History, Psychology, Economics & more * Languages: Spanish, Yorùbá, Telugu, French & more * Misc: World Capitals, professional certifications, and other niche topics WHAT LEARNERS SAY “ZemoMemo is tailored to the needs of all students… and provides the most important part of academic success: structure.” - Hailey, Purdue University “I’ll be using this for senior year with 3 new APs… You’re awesome!” - Savannah, Morrison Academy (Taichung, Taiwan) “This product is a hidden gem… It’s been helping with CompTIA A+ 1102 - we’re two new users!” - marstakeover (Reddit) WHY IT’S DIFFERENT Traditional flashcard apps make you pick: fast cramming *or* slow spaced repetition. ZemoMemo gives you both: rapid first-pass learning with science-backed retention. So you can move quickly without losing what you’ve learned. GET STARTED * Create your first deck in a minute * Import from Quizlet or Anki * Or try a sample course and see the difference ZemoMemo - best of both worlds: learn fast, remember forever. Quizlet and Anki are trademarks of their respective owners. ZemoMemo is not affiliated with or endorsed by them.

About

Flashcards Open Source App

Features
Read full description

Create AI flashcards from notes, then review them with spaced repetition for exams, languages, and serious daily study. Use it for: - exam prep and coursework - language learning and vocabulary building - medical, technical, and other high-memorization study - AI-assisted card improvement and study planning - fast daily review with decks, tags, and spaced repetition Create cards in seconds, organize your study system with decks and tags, and review on a focused schedule that helps you retain more with less busywork. AI is part of the study flow. Use it to sharpen card wording, unpack difficult topics, and decide what to study next without leaving your flashcards. For learners who care about transparency, the app is open source, and the full stack can be self-hosted. Support, privacy policy, and terms are available inside the app. All code for the app, backend, and infrastructure is open and available on GitHub: https://github.com/kirill-markin/flashcards-open-source-app

Screenshots

ZemoMemo4 screens
Flashcards Open Source App4 screens

Verdict

The call

The clearest difference is iOS requirement: ZemoMemo at 14.0 against Flashcards Open Source App's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 5 level
ZemoMemo versus Flashcards Open Source App: the parameters behind the verdict, then further details
ParameterZemoMemoFlashcards Open Source App
PriceFreeFree
Update frequency—Every 4 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better26.0
Further details — not scored
Size11 MB25 MB
Age rating4+12+
DeveloperteadstSAMO DANNI EOOD

In-app purchases

None

ZemoMemo

No in-app purchases

None

Flashcards Open Source App

No in-app purchases

Questions

Is ZemoMemo free?
ZemoMemo is free to download, with no in-app purchases.
Is Flashcards Open Source App free?
Flashcards Open Source App is free to download, with no in-app purchases.
Do ZemoMemo or Flashcards Open Source App have ads?
Neither ZemoMemo nor Flashcards Open Source App shows ads.

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