Comparison

AnkiMobile Flashcards vs FlashStacks

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

Head to head
About

AnkiMobile Flashcards

This app is a powerful and intelligent flashcard companion for a popular desktop program. It offers smart scheduling algorithms, flexible study interfaces, and comprehensive statistics to aid learning. Sync your progress across devices and study offline with media-rich cards.

Highlights
  • Cloud synchronization across devices
  • SM2 and FSRS scheduling algorithms
  • Flexible and efficient study interface
  • Comprehensive study graphs and statistics
  • Support for large card decks
  • Offline study with media
  • Advanced card search functionality
Features
Read full description

Your decks, wherever you go! AnkiMobile is the official Anki app for iPhone and iPad, the flashcard app that more than 15 million learners worldwide have loved and trusted for over 20 years, made by the team behind Anki and AnkiWeb. Your purchase directly supports the open-source project that keeps Anki desktop free for everyone. Sync is included at no extra cost: no subscription, no sync fees. What you get: - Free sync with AnkiWeb. Keep your decks and study progress in sync across iPhone, iPad, Mac, Windows, Linux, and the web. Add cards on your computer, study them on your phone. - The same SM-2 and FSRS scheduling as desktop Anki, so you review material right as you're about to forget it. - A flexible interface designed for smooth and efficient study. - Detailed graphs and statistics about your progress. - Support for large collections, including 100,000+ cards. - Offline study. Media (images and audio) is stored on your device. - Powerful search for building filtered decks, e.g. "tagged high priority, answered in the last ten days, and not containing these words". - MathJax equations and LaTeX rendering. - Apple Pencil support for adding hand-drawn images to cards. Good to know: AnkiMobile works alongside the desktop version of Anki. Some tasks might require the desktop version, and add-ons are not supported on mobile yet. Sync is optional. You can also import and export data over USB or AirDrop. Buy once and use AnkiMobile on all your devices with the same Apple ID. Family Sharing is also supported. Educational institutions can find bulk discounts information through Apple's Volume Purchase Program. Need help? The manual and support resources are at https://docs.ankiweb.net/ankimobile/support. If you have questions or want to report an issue, contact us through our support site.

About

FlashStacks

Transform study materials into interactive Home Screen widgets. AI generates flashcards from PDFs, and spaced repetition optimizes learning. Visualize concepts with image occlusion and track progress with detailed stats.

Highlights
  • Home and Lock Screen widgets
  • AI-powered PDF to flashcard generation
  • Spaced repetition learning
  • Image occlusion cards
  • Progress tracking and stats
  • Customizable widget themes
Features
Read full description

Your flashcards, on your Home Screen. FlashStacks turns your study cards into Home Screen, Lock Screen and StandBy widgets. Glance at a question between classes. Tap to reveal the answer. Tap again for the next card — all without opening the app. Learning fits into the moments already filling your day. ALWAYS VISIBLE, ALWAYS READY Widgets come in every size and rotate through your stacks automatically, so every time you pick up your phone there's something new to learn. Start a study session and your card follows you to the Lock Screen and Dynamic Island as a Live Activity. AI DECKS FROM YOUR NOTES Upload any PDF — lecture slides, textbook chapters, study guides — and AI builds a complete deck in seconds. Choose High-Yield for exam prep or Comprehensive for full coverage. FlashStacks even finds the diagrams in your PDF so you can turn them into image occlusion cards. LEARN A LANGUAGE FlashStacks Learn gives you ready-made packs in French, Spanish, Japanese, Korean and Mandarin — greetings, numbers, food, travel and more. Add a pack and pick up new words from your Lock Screen all day. SPACED REPETITION THAT WORKS FlashStacks uses the same proven science behind Anki. Cards you struggle with come back sooner. Cards you've mastered fade into the background. Study smarter, not longer. IMAGE OCCLUSION CARDS Add any image — diagrams, anatomy, maps — and draw boxes over the parts to hide. Tap to reveal what's underneath. Perfect for visual subjects. BRING YOUR CARDS WITH YOU Import from Anki, CSV, TSV or JSON. Search every card across all your stacks and keep them organised with tags. BEAUTIFUL BY DESIGN Every stack gets its own colour palette — soft pastels or bold modern tones — and your widgets match. Dark mode uses pure OLED black. TRACK YOUR PROGRESS See mastery, difficulty breakdown and 14-day activity for every stack, plus a study calendar across everything you've learned. Build a streak. Hit your daily goal. FLASHSTACKS PREMIUM Unlock unlimited stacks, AI deck generation from PDF, image occlusion cards and every FlashStacks Learn pack. Free accounts include up to 2 stacks. Monthly and annual plans available. Annual plans include a discounted first month. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

AnkiMobile Flashcards4 screens
FlashStacks4 screens

Verdict

The call

The clearest difference is price: FlashStacks at Free against AnkiMobile Flashcards's $24.99. FlashStacks also leads on review sentiment (100% vs 58%) and rating (4.6 vs 4.0). AnkiMobile Flashcards's advantage is in-app purchases (none vs 3) and ratings volume (2.4K vs 7). On ads 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

FlashStacks is free to download; AnkiMobile Flashcards costs $24.99 up front. FlashStacks sells 3 in-app purchases, starting at $4.99 per month. AnkiMobile Flashcards asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FlashStacks holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: AnkiMobile Flashcards has 2.4K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 58% of AnkiMobile Flashcards's written reviews are positive against 100% of FlashStacks's.

UpkeepUpdate frequency

AnkiMobile Flashcards ships an update every 6 weeks, FlashStacks every 8 days. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard10 real differences · 1 level
AnkiMobile Flashcards versus FlashStacks: the parameters behind the verdict, then further details
ParameterAnkiMobile FlashcardsFlashStacks
Price$24.99Free — better
Rating4.0 (2.4K ratings)4.6 (7 ratings) — better
Positive reviews58.5% of reviews100.0% of reviews — better
Number of ratings2.4K — better7
Update frequencyEvery 6 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
Best chart rank#1 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.2 — better17.6
Further details — not scored
Size38 MB11 MB
Age rating4+4+
DeveloperAnki Software LLCBailey Skewes

Customer experience

AnkiMobile Flashcards

All ratings2,311 ratings
Positive74.0%
Neutral5.1%
Negative20.9%
Written reviews1,579 reviews
Positive58.5%
Neutral13.0%
Negative28.6%

FlashStacks

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

AnkiMobile Flashcards

Reported bugs

5 issues
  • Cards disappearing after updates
  • Inconsistent behavior when switching between apps
  • Inability to delete decks on mobile
  • Sync issues causing data loss
  • Compatibility problems with older iOS versions

Requested features

6 requests
  • Add dark mode option
  • Improve card browsing and management features
  • Integrate with Apple Pencil for better note-taking
  • Add support for more file formats (e.g., Opus audio)
  • Enhance mobile-specific features and UI
Show 1 more
  • Provide better onboarding and tutorials

FlashStacks

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

AnkiMobile Flashcards

No in-app purchases

3 purchases

FlashStacks

Subscriptions3
  • FlashStacks Premium — Monthly$4.991 Month
  • Premium Special Offer$24.991 Year
  • FlashStacks Premium — Annual1 Month trial$39.991 Year

Questions

Is AnkiMobile Flashcards free?
AnkiMobile Flashcards costs $24.99, with no in-app purchases.
Is FlashStacks free?
FlashStacks is free to download, with in-app purchases available.
Which has better reviews, AnkiMobile Flashcards or FlashStacks?
FlashStacks is rated higher. AnkiMobile Flashcards averages 4.0 out of 5 from 2.4K ratings, while FlashStacks averages 4.6 from 7 ratings.
Do AnkiMobile Flashcards or FlashStacks have ads?
Neither AnkiMobile Flashcards nor FlashStacks shows ads.
Which is updated more often, AnkiMobile Flashcards or FlashStacks?
AnkiMobile Flashcards ships an update every 6 weeks, and FlashStacks every 8 days. Most recently, AnkiMobile Flashcards was updated on November 3, 2026 and FlashStacks on October 25, 2026.

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