Comparison

Masterix vs Spaced Repetition

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

Head to head
About

Masterix

Features
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Masterix β€” Learn smarter, one card at a time Turn everything you want to remember into simple, beautiful cards β€” poems, conversational phrases, vocabulary, or quotes. Learn a little every day and see your progress grow effortlessly. ________________________________________ Why Masterix works β€’ Smart spaced repetition β€” Masterix reminds you when to review and helps you remember for the long term. β€’ Speak aloud and retain more β€” active learning made simple. β€’ Total control β€” edit, search, or organize your cards anytime. β€’ Mini-courses β€” ready-made sets for kids and adults. β€’ Friendly challenges β€” compete with friends or just with yourself to stay consistent. ________________________________________ Search. Review. Master. Everything stays clear and under your control. You can adjust the repetition schedule, edit or delete cards anytime β€” Masterix adapts to the way you learn. ________________________________________ Learn. Compete. Grow. Together. Turn learning into a daily habit. Challenge yourself or your friends to learn something new every day β€” and make real progress, one card at a time. ________________________________________ Questions, bugs, suggestions? Feel free to contact us at support@shortcuttoenglish.com ________________________________________ Users having purchased a Masterix subscription will be charged through their iTunes account. The subscription renews automatically every month or year (depending on the subscription type) unless cancelled at least 24 hours before the end of the current period. Subscription cancellations will take effect following the current subscription period. Manage subscriptions through Account Settings after purchase. Please visit https://drive.google.com/file/d/1QdU5sm0SiOxe2FswTI5_7YkpU3fMtByo/view?usp=sharing for our terms of use and https://drive.google.com/file/d/1uWRVTjfd3QQ-1cVgo9Dd5dfiudUV51RW/view?usp=sharing for our privacy policy.

About

Spaced Repetition

Features
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Transform your learning with FlashCards – the intelligent study app that uses scientifically-proven spaced repetition to help you master any subject faster and retain information longer. SMART LEARNING WITH THE LEITNER SYSTEM FlashCards employs the renowned Leitner system, a spaced repetition method backed by decades of cognitive science research. Our adaptive algorithm shows you difficult cards more frequently while spacing out cards you've mastered, optimizing your study time for maximum retention. INTELLIGENT FLASHCARDS - Create unlimited decks for any subject – languages, medicine, history, coding, or personal learning goals - Clean, distraction-free card interface designed for focused studying - Reverse mode: practice both questionβ†’answer and answerβ†’question for comprehensive learning - Rich text support for detailed explanations and context PROVEN SPACED REPETITION - 6-level Leitner box system automatically schedules optimal review times - Cards advance when you know them well, reset when you struggle - Scientifically-optimized intervals: 1, 2, 4, 8, 16, and 32 days - Focus your time on material that needs the most attention PROGRESS TRACKING - Visual progress bars show your mastery level for each deck - Detailed statistics track your learning journey - Study streaks motivate consistent daily practice - Box-level distribution shows exactly where you stand with each topic BEAUTIFUL, MINIMAL DESIGN - Clean interface that eliminates distractions and keeps you focused - Thoughtfully designed with modern aesthetics and smooth animations - Dark and light modes for comfortable studying any time of day - Intuitive navigation that gets out of your way WHY SPACED REPETITION WORKS Research shows spaced repetition increases retention rates by 150-200% compared to traditional studying methods. By reviewing information just before you're about to forget it, you strengthen neural pathways and create lasting memories. This isn't cramming – it's building knowledge that sticks. The Leitner system, developed in the 1970s, has been validated by modern neuroscience. Cards you know well appear less frequently, while challenging material gets more attention. This personalized approach means you're always studying at the edge of your knowledge, maximizing learning efficiency. PERFECT FOR STUDENTS - Medical students mastering anatomy, pharmacology, and clinical concepts - Language learners building vocabulary and grammar patterns - Law students memorizing cases, statutes, and legal principles - Engineering students learning formulas, concepts, and problem-solving approaches PROFESSIONALS - Developers learning new programming languages and frameworks - Sales teams memorizing product knowledge and customer information - Healthcare workers staying current with protocols and procedures - Anyone building expertise in their field LIFELONG LEARNERS - History enthusiasts exploring different time periods and cultures - Science lovers diving deep into complex topics - Personal development through quotes, principles, and insights - Hobby learning from cooking techniques to musical theory STUDY SMARTER, NOT HARDER Traditional studying often means endless re-reading and cramming that leads to quick forgetting. FlashCards changes this by leveraging how your brain naturally learns and remembers. Spend 15-20 minutes daily with our spaced repetition system, and watch your knowledge compound over time. The app handles all the complex scheduling automatically. You simply study the cards that appear, rate how well you knew each answer, and let the algorithm optimize your future reviews. No manual planning, no complicated schedules – just effective learning. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ A paid subscription is needed to use this app.

Screenshots

Masterix4 screens
Spaced Repetition4 screens

Verdict

The call

The clearest difference is update cadence: Spaced Repetition at every 9 days against Masterix's every 2 months. Spaced Repetition also leads on iOS requirement (15.1 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Masterix sells 2 in-app purchases, starting at $4.49 per month and Spaced Repetition sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Masterix ships an update every 2 months, Spaced Repetition every 9 days. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 4 level
Masterix versus Spaced Repetition: the parameters behind the verdict, then further details
ParameterMasterixSpaced Repetition
PriceFreeFree
Update frequencyEvery 2 monthsEvery 9 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.515.1 β€” better
Further details β€” not scored
Size188 MB37 MB
Age rating4+4+
DeveloperEvgeny StanovoyJulian Riss

In-app purchases

2 purchases

Masterix

Subscriptions2
  • Premium - Monthly$4.491 Month
  • Premium - Yearly$17.491 Year
2 purchases

Spaced Repetition

Subscriptions2
  • Cortex FlashCards3 Days trial$1.997 Days
  • Cortex FlashCards3 Days trial$29.991 Year

Questions

Is Masterix free?
Masterix is free to download, with in-app purchases available.
Is Spaced Repetition free?
Spaced Repetition is free to download, with in-app purchases available.
Do Masterix or Spaced Repetition have ads?
Neither Masterix nor Spaced Repetition shows ads.
Which is updated more often, Masterix or Spaced Repetition?
Masterix ships an update every 2 months, and Spaced Repetition every 9 days. Most recently, Masterix was updated on November 2, 2026 and Spaced Repetition on October 25, 2026.

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