ZemoMemo vs Satalyst
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ZemoMemo
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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.
Satalyst
This app transforms SAT preparation into an enjoyable experience through a collection of engaging mini-games. Users can build study streaks, compete on leaderboards, and track their progress in Math and Reading, aiming for a higher score.
- Gamified SAT practice
- Mini-games based on SAT content
- Progress tracking for Math & Reading
- Global leaderboards
- Unlockable mascot avatars
- Build study streaks
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Satalyst is the SAT prep app that catalyses your growth. Just like a catalyst speeds up a reaction, Satalyst accelerates your path to a higher score by turning daily practice into something you enjoy. Perfect for squeezing in study sessions on the train, during lunch, or whenever you have 5 minutes to spare. Build your SAT streak one game at a time and watch your score transform. With a full arcade of mini-games built around real SAT content — Block Blast, 2048, Crossword, Connections, and Memory Match — every session feels fresh. Compete on global leaderboards, unlock custom mascot avatars, and track your progress across Math and Reading as you climb toward a perfect 1600. Whether you're just starting out or pushing for your dream score, Satalyst makes daily SAT prep effortless, addictive, and actually fun.
Screenshots
Verdict
ZemoMemo and Satalyst are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ZemoMemo | Satalyst |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 11 MB | 31 MB |
| Age rating | 4+ | 12+ |
| Developer | teadst | Satyam Agrawal |
In-app purchases
ZemoMemo
No in-app purchases
Satalyst
No in-app purchases









