Comparison

Studyflash vs Retain Cards

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

Head to head
About

Studyflash

Transform your notes into smart flashcards in seconds. This AI-powered app helps students and pupils ace exams by creating personalized study materials from lectures, slides, and books. Optimize your learning with intelligent spaced repetition and personalized study plans.

Highlights
  • AI-powered flashcard creation
  • Personalized flashcards
  • Intelligent spaced repetition
  • Customizable learning plans
  • Upload lecture notes and books
  • Share flashcards with peers
Read full description

Hey, I'm Max, your study buddy. Share your study materials with me, and I'll help you prepare for your exams, whether you're in school or college. As your AI tutor, I'll create a step-by-step study plan, explain difficult topics, and practice with you. I can even create mock exams and test your knowledge. LEARN WITH MAX—BY VOICE OR CHAT Talk to me directly or message me in the chat. Ask follow-up questions, have me explain connections in a different way, and discuss your answers with me. I can also show you diagrams while we talk. I'll remember how you like to learn and adapt my explanations to your questions and answers. YOUR MATERIAL, STEP BY STEP I'll turn your materials into a learning path organized by topic. Work through the content step by step, and dig deeper with me wherever you need more help. YOUR MATERIALS, MORE WAYS TO LEARN Upload your study materials and let me turn them into resources that help you understand, review, and practice: • Summaries and mind maps: Get an overview of the content and how the ideas connect. • Flashcards and quizzes: Practice active recall and review concepts and connections with questions based on your material. • Study podcasts: Listen to your study material and review wherever you are. PRACTICE FOR THE REAL THING WITH MOCK EXAMS Create mock exams from your materials and practice with a time limit before exam day at school or college. You'll receive a grade and feedback on your answers. See what you're already doing well and which topics you'd like to review again. Afterward, you can discuss the questions with me. Some features require a paid subscription. Studyflash was created by students for students and designed around your needs. As a small, dedicated team, we truly value your feedback. If you have any questions or suggestions for improvement, you can reach us anytime at support@studyflash.ch. For more information, visit www.studyflash.com or see: Terms of Service: https://www.studyflash.com/tos Privacy Policy: https://www.studyflash.com/privacy-policy

About

Retain Cards

This AI-powered flashcard app transforms your learning materials into effective study tools. Upload documents, videos, or notes to automatically generate flashcards and receive a personalized study plan based on your exam dates and goals. Optimize your learning with spaced repetition and active recall.

Highlights
  • AI-generated flashcards from various sources
  • Personalized study plans based on exam dates
  • Spaced repetition and active recall
  • Progress tracking and visualization
  • Import Anki decks
  • Share flashcard decks
Read full description

Welcome to Retain – the AI-powered flashcard app that turns your personal learning materials into effective study tools. Whether you're in school, university, or pursuing self-learning, Retain helps you study faster, retain more, and stay on track. How it works: 1. Upload your study material (PDF/image/video) 2. Verify the AI-generated flashcards 3. Select desired grade and exam date 4. Follow your personalized learning plan What you can do with Retain: → Automatically generate flashcards from PDFs, slides, and handwritten notes. → Convert YouTube videos and online lectures into flashcards. → Set your exam date and goal and receive a personalized flashcard learning plan. → Track your daily study goals and visualize your progress. → Import Anki decks and sync learning progress across devices. → Use spaced repetition and active recall to improve long-term memory. → Share flashcard decks with friends or study groups. Retain is based on the latest findings in learning science and artificial intelligence, using proven methods like spaced repetition and active recall. This gives you a focused, efficient learning experience tailored to your progress. For anyone who wants to cut their study time in half: Whether you're preparing for your next exam or learning a new topic – Retain helps you make the most of your study time. Just follow the daily assigned flashcard reviews to achieve your desired grade on exam day. Terms of Service: https://app.retain.cards/terms Privacy Policy: https://app.retain.cards/privacy

Screenshots

Studyflash4 screens
Retain Cards4 screens

Verdict

The call

The clearest difference is ratings volume: Retain Cards at 419 against Studyflash's 64. On price, rating, review sentiment and update cadence 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. Studyflash sells 5 in-app purchases, starting at $14.99 per month and Retain Cards sells 14 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.1 for Studyflash against 4.2 for Retain Cards. That said, the two scores are not equally well evidenced: Retain Cards has 419 ratings behind it against 64, so its average is the more settled of the two. Written reviews are what separate them: 44% of Studyflash's written reviews are positive against 50% of Retain Cards's.

UpkeepUpdate frequency

Studyflash ships an update every 11 days, Retain Cards every 3 weeks. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

Scorecard1 real difference · 9 level
Studyflash versus Retain Cards: the parameters behind the verdict, then further details
ParameterStudyflashRetain Cards
PriceFreeFree
Rating4.1 (64 ratings)4.2 (419 ratings) — better
Positive reviews44.0% of reviews50.4% of reviews — better
Number of ratings64419 — better
Update frequencyEvery 11 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size168 MB10 MB
Age rating4+4+
DeveloperStudyflashRetain Labs GmbH

Customer experience

Studyflash

All ratings57 ratings
Positive77.2%
Neutral3.5%
Negative19.3%
Written reviews50 reviews
Positive44.0%
Neutral18.0%
Negative38.0%

Retain Cards

All ratings419 ratings
Positive77.3%
Neutral10.0%
Negative12.6%
Written reviews121 reviews
Positive50.4%
Neutral5.8%
Negative43.8%

In-app purchases

5 purchases

Studyflash

Subscriptions5
  • Studyflash Premium Monthly$14.991 Month
  • Studyflash Monthly$14.991 Month
  • Studyflash Premium Semesterly$35.993 Months
Show 2 more
  • Studyflash Premium Yearly$99.991 Year
  • Studyflash Yearly$99.991 Year
14 purchases

Retain Cards

Subscriptions14
  • Retain Ultra (monthly)$12.991 Month
  • Retain Ultra (monthly)$14.991 Month
  • Retain Ultra (monthly)2 variants$19.991 Month
Show 11 more
  • Retain Ultra (yearly)$47.901 Year
  • Retain Ultra (yearly)$59.901 Year
  • Retain Ultra (yearly)3 variants$71.901 Year
  • Retain Ultra (yearly)2 variants$83.901 Year
  • Retain Ultra (yearly)3 Days trial$83.901 Year
  • Retain Ultra (yearly)14 Days trial$83.901 Year
  • Retain Ultra (yearly)3 Days trial$95.901 Year
  • Retain Ultra (yearly)$119.991 Year
  • Retain Ultra (yearly)3 Days trial$119.991 Year
  • Retain Pro (yearly)$999.991 Year
  • Retain Pro (monthly)$999.991 Month

Questions

Is Studyflash free?
Studyflash is free to download, with in-app purchases available.
Is Retain Cards free?
Retain Cards is free to download, with in-app purchases available.
Which has better reviews, Studyflash or Retain Cards?
Retain Cards is rated higher. Studyflash averages 4.1 out of 5 from 64 ratings, while Retain Cards averages 4.2 from 419 ratings.
Do Studyflash or Retain Cards have ads?
Neither Studyflash nor Retain Cards shows ads.
Which is updated more often, Studyflash or Retain Cards?
Studyflash ships an update every 11 days, and Retain Cards every 3 weeks. Most recently, Studyflash was updated on October 20, 2026 and Retain Cards on October 22, 2026.

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