Comparison

MindStack Flashcards vs Zynlo

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

Head to head
About

MindStack Flashcards

Features
Read full description

MindStack helps you remember what you study. Build flashcards by hand, or let the AI do it for you โ€” paste text, drop a PDF, snap a photo of your notes, or just type what you want ("20 cards on the Krebs cycle"). The cards then come back to you using FSRS spaced-repetition scheduling, so you only review what you're about to forget. While studying, tap Hint for a nudge or Explain for a quick breakdown when you get something wrong. Run Audit on any deck and the AI flags duplicates, leaky questions, and cards that need a rewrite. Three card types (Q&A, cloze, term and definition), light and dark themes, streaks with freezes for the busy weeks, a +5 daily boost when you want to push, and a home screen widget showing what's due today. iCloud backup is automatic. Anki .apkg imports in two taps. Works offline once your decks are downloaded. The full study engine is free. AI features (generation, Audit, Hint, Explain) include a 30-day trial, then Pro. Built for students, language learners, and anyone who'd rather remember things than re-learn them next month. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.kalimaharabic.co.uk/mindstackprivacypolicy

About

Zynlo

Features
Read full description

Zynlo is a spaced repetition app for people who already have something to learn. Bring the material. Zynlo handles what happens after a card exists: it tests you in a way that produces real evidence, notices where recall breaks down, helps repair the gap while it is still fresh, checks the fix worked, and schedules the next encounter so the knowledge stays. WHY ZYNLO IS DIFFERENT Most flashcard apps show you a card, ask whether you knew it, and trust your judgement. Zynlo gradually asks you to produce the answer yourself. New material starts gently. As your recall becomes stronger, cards progress towards typed production so Zynlo can measure what you can actually retrieve rather than what you think you knew. When something goes wrong, the mistake becomes useful evidence rather than just another red card. BRING WHAT YOU ALREADY HAVE Import from Anki, including supported media and review history. Import from Mochi. Import CSV, TSV, JSON or Markdown files, including awkward files full of commas, quotes and formatting. Generate learning material in ChatGPT, Claude or another AI assistant and import the result. Or create cards yourself with formatted text, images and maths. Your learning material belongs to you. Zynlo is designed around studying it, not locking it inside a content catalogue. BUILD BETTER CARDS AS YOU LEARN Learning does not stop when the flashcard is created. Attach multiple notes, screenshots or photographs directly to a card without changing what the card is testing. Review all of your Notes & Images from the subject itself, while keeping them hidden during recall until they are appropriate to see. Create reverse cards when you need to learn knowledge in both directions. Or reverse an entire subject without duplicating the underlying material. A STUDY LOOP WITH AN OPINION - Typed production once a card is ready for it - New cards begin with recognition before harder recall is earned - Hints while you are still thinking - Immediate repair and retesting when recall breaks down - A Daily Review built around what actually needs attention - A new-card limit you control - Practise freely without disturbing the real schedule - Undo an answer made by accident - Independent scheduling for reverse cards SEE WHERE YOU ACTUALLY STAND See which cards are slipping and what needs attention now. See confusions Zynlo has genuinely observed rather than guessed. Check subject and deck health before weak material turns into weeks of wasted review. Progress figures are based on defined learning evidence rather than decorative scores. MADE FOR MORE THAN ONE LANGUAGE Zynlo's interface is available in: English French Turkish Italian Spanish German Hindi Arabic Urdu Arabic and Urdu include right-to-left support. Your own flashcards are never automatically translated or rewritten. PRIVATE, OFFLINE-FIRST AND YOURS Your study library lives on your device and works offline. Accounts are optional. Sign in with Apple, Google or email if you want a Zynlo account, while continuing to use the app without one. Your local cards, review history, typed answers and Notes & Images remain available without signing in. Export a complete Zynlo backup whenever you want, including supported images and learning history. Anonymous usage statistics can be switched off in the app. Zynlo is built for the part of learning that matters months later: being able to retrieve what you learned today.

Screenshots

MindStack Flashcards4 screens
Zynlo4 screens

Verdict

The call

The clearest difference is in-app purchases: Zynlo at none against MindStack Flashcards's 3. Zynlo also leads on iOS requirement (15.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. MindStack Flashcards sells 3 in-app purchases, starting at $4.99 per month. Zynlo asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

Scorecard2 real differences ยท 4 level
MindStack Flashcards versus Zynlo: the parameters behind the verdict, then further details
ParameterMindStack FlashcardsZynlo
PriceFreeFree
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.0 โ€” better
Further details โ€” not scored
Size49 MB34 MB
Age rating4+4+
Developerharris khalidSelhan Salih

In-app purchases

3 purchases

MindStack Flashcards

Subscriptions2
  • Pro Monthly$4.991 Month
  • Pro Annual1 Month trial$19.991 Year
One-time1
  • AI Usage Reset$0.99
None

Zynlo

No in-app purchases

Questions

Is MindStack Flashcards free?
MindStack Flashcards is free to download, with in-app purchases available.
Is Zynlo free?
Zynlo is free to download, with no in-app purchases.
Do MindStack Flashcards or Zynlo have ads?
Neither MindStack Flashcards nor Zynlo shows ads.
Which is updated more often, MindStack Flashcards or Zynlo?
MindStack Flashcards ships an update every 5 days, and Zynlo every 5 days. Most recently, MindStack Flashcards was updated on October 31, 2026 and Zynlo on October 29, 2026.

Other comparisons