Comparison

Flippy vs Lexolotl

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

Head to head
About

Flippy

This app uses smart algorithms and ARKit to help you learn languages and facts more effectively. It offers personalized learning sessions, intuitive flashcard interaction, and smart reminders to reinforce your knowledge.

Highlights
  • Generated personalized learning sessions
  • Intuitive swipe-based flashcard interface
  • ARKit eye-tracking for focus (select devices)
  • Import or create custom flashcards
  • Smart spaced repetition reminders
  • Leitner system algorithm
  • Detailed progress statistics
Features
Read full description

Flippy is the flashcard app that brings cards back exactly when you're about to forget them. Learn less. Remember more. A STAGE, NOT A FORM Your decks live on a wallet of passes in front of a photo stage — chalkboard, water, sunset, chemistry, space, or your own photo. Glass navigation, paper cards, serif type. Dark, calm, focused. SPACED REPETITION THAT ACTUALLY THINKS Grade every card Again, Hard, Good or Easy. Each card keeps its own ease, its interval stretches as you remember, and a daily session picks what's due plus a few new cards. Memory-strength rings show what's fading. Leeches are flagged before they eat your time. Undo any answer. EIGHT WAYS TO LEARN Today's session · Quick 10 · New cards · Hardest cards · Reverse · Quiz · Write · Match · Cram. Deselect topics you don't want right now. Every session starts with a 3-2-1 countdown and your settings right there. QUIZ — POWERED BY APPLE INTELLIGENCE Multiple-choice distractors are written on device: plausible, same style, same topic, never the correct answer paraphrased. Match spreads pairs across the whole screen and races the clock. Write forgives typos. SCAN DOCUMENTS & SLIDES INTO CARDS Photograph pages with the document camera or drop in PDF slides and images. Text is recognized on device, then Apple Intelligence drafts your cards — long slide decks are split into chunks automatically. BRING YOUR CARDS Import Anki decks (.apkg, with images and subdecks), Anki text, Quizlet and Flashcard Hero exports (.flashcards, with images and topics), CSV and TSV. Export any deck or topic as a .flippy file with everything inside — text, photos, drawings, LaTeX and your learning progress. RICH CARDS Photos, PencilKit drawings, LaTeX formulas, cloze deletions, read-aloud in the card's language, scrollable long content. WIDGETS EVERYWHERE Today pass with goal ring and streak · interactive flashcard widget (flip and grade on the Home Screen) · streak & week · 14-day forecast · deck passes · learning modes · Lock Screen and Apple Watch complications · Control Center: start a session or mute today's reminder · a Live Activity keeps your session on the Lock Screen and in the Dynamic Island. STATISTICS THAT MOTIVATE Learning score, accuracy and volume trends, activity heatmap, hour × weekday grid, Leitner boxes, memory-strength buckets, forecast, deck health, records and insights — for the week, month, 90 days or the year. YOUR DATA STAYS YOURS No server, no account. Sync through your own iCloud. A trash keeps deleted decks, topics and cards for 30 days. FREE VS. PREMIUM Free: 2 decks with 2 topics and 40 cards each, every learning mode, statistics, import and export. Premium: unlimited decks, topics and cards, Apple Intelligence card sets, iCloud sync across your devices, every wallpaper and tint — and you support an independent developer. Family Sharing for up to five people. Privacy: https://kevinreutter.online/privacy-flippy Terms: https://kevinreutter.online/terms-and-conditions/

About

Lexolotl

This spaced-repetition flashcard app adapts to your learning pace, offering customizable drills and progress tracking. Build decks from scratch, use starter sets, or import your own content. Study across multiple Apple devices with seamless iCloud sync.

Highlights
  • Adaptive spaced repetition
  • Customizable drill configurations
  • Import and build decks
  • Starter decks available
  • Cross-device iCloud sync
  • On-device intelligence features
  • Privacy-focused design
Features
Read full description

Lexolotl is a spaced-repetition flashcard app that adapts to how well you actually know each term. You're in control when you run a drill – choose whether to draw cards at random, to reinforce known terms, or to work on the hard stuff. Build decks from scratch, from starter decks, or imports. Jump in immediately with a library of ready-to-study starter decks spanning languages, scripts, science, and more, including script and syllabary decks for Arabic, Cyrillic, Devanagari, Greek, Hangul, and Japanese. Pick a starter deck as your foundation, then add your own vocabulary as you encounter new words in the wild. Or import question/answers from a plain-text file, or full decks with categories and tags in Lexolotl Basic, or Lexolotl JSON. Organize everything with categories and color-coded tags; search and filter your terms by text, category, tag, or score to find exactly what needs work. Take your drills anywhere — in your backpack, in your pocket, or on your wrist. Studying on your iPad at the library, sneaking in a few cards on your iPhone between classes, glancing through a drill on your Apple Watch during a commute — Lexolotl fits around your day, not the other way around. iCloud sync keeps your decks and progress in step across all your devices automatically, so wherever you left off is where you pick back up. Having trouble translating *into* your study language? Flip the drill direction — every card can run question→answer or answer→question, and Lexolotl tracks your mastery in each direction separately. Want to focus on the words giving you the most trouble? Enable score weighting and tune six draggable bars to lean the session as hard as you like on your weakest terms. Save any configuration as a named Favorite, set one as your deck's default, and your preferred setup is always one tap away. Drill presets even work on Apple Watch. Rate each card on a five-point scale (from Unknown to Easy). After a session, a histogram shows exactly how it went, and the app can automatically tag any terms you missed for focused follow-up. For language learners Set a learner language and a study language on any deck, and two on-device intelligence features unlock. A speaker button can read the study-language side of any card aloud. On supported devices with Apple Intelligence enabled, a Usage Examples button generates three contextual example sentences with translations, entirely on your device. (Requires Apple Intelligence and a supported language pair.) Handoff lets you start a drill on your iPhone and continue on your iPad or Mac, right where you left off. An Apple Watch companion lets you run drills and rate terms from your wrist, with results syncing back automatically. Privacy by design All intelligence features run on-device. Your drill scores and study history live in your iCloud account or on your device, never on our servers. And your progress is never included in exports, so sharing a deck never shares how well you know it. Knowledge is built one term at a time! Lexolotl is made to grow with you. Start with a starter deck, layer in your own vocabulary as your knowledge deepens, and let your drill history guide you toward genuine mastery over time. Written from the ground up in SwiftUI, Lexolotl is a native citizen of the Apple ecosystem: it evolves alongside new Apple technologies, supports the full range of Apple accessibility features including Dynamic Type, Reduce Motion, and VoiceOver, and is committed to meeting every learner where they are, whatever device they reach for, and whatever style of learning works best for them.

Screenshots

Flippy4 screens
Lexolotl4 screens

Verdict

The call

The clearest difference is price: Flippy at Free against Lexolotl's $4.99. Flippy also leads on ratings volume (19 vs 3). Lexolotl's advantage is review sentiment (100% vs 59%) and in-app purchases (none vs 10). On ads and device support 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

Flippy is free to download; Lexolotl costs $4.99 up front. Flippy sells 10 in-app purchases, starting at $2.99 per 3 months. Lexolotl asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Lexolotl holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Flippy has 19 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 59% of Flippy's written reviews are positive against 100% of Lexolotl's.

UpkeepUpdate frequency

Flippy ships an update every 9 days, Lexolotl every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard8 real differences · 2 level
Flippy versus Lexolotl: the parameters behind the verdict, then further details
ParameterFlippyLexolotl
PriceFree — better$4.99
Rating4.8 (19 ratings)5.0 (3 ratings) — better
Positive reviews59.3% of reviews100.0% of reviews — better
Number of ratings19 — better3
Update frequencyEvery 9 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch, Vision Pro — betteriPhone, iPad, Mac, Apple Watch, Vision Pro
Requires iOS26.018.4 — better
Further details — not scored
Size107 MB41 MB
Age rating4+4+
DeveloperKevin ReutterChristopher Corbell

Customer experience

Flippy

All ratings19 ratings
Positive94.7%
Neutral5.3%
Negative0.0%
Written reviews59 reviews
Positive59.3%
Neutral15.3%
Negative25.4%

Lexolotl

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

Flippy

Subscriptions8
  • Premium - 3 Months$2.993 Months
  • Flippy+ 3 Months$3.993 Months
  • Premium Monthly$3.991 Month
Show 5 more
  • Family Flippy+ 3 Months$6.993 Months
  • Premium - Annual7 Days trial$7.991 Year
  • PremiumAnnualOffering$9.991 Year
  • Flippy+ Annual$24.991 Year
  • Family Flippy+ (Annual)7 Days trial$39.991 Year
One-time2
  • Flippy+ Lifetime$59.99
  • Family Flippy+ Lifetime$99.99
None

Lexolotl

No in-app purchases

Questions

Is Flippy free?
Flippy is free to download, with in-app purchases available.
Is Lexolotl free?
Lexolotl costs $4.99, with no in-app purchases.
Which has better reviews, Flippy or Lexolotl?
Lexolotl is rated higher. Flippy averages 4.8 out of 5 from 19 ratings, while Lexolotl averages 5.0 from 3 ratings.
Do Flippy or Lexolotl have ads?
Neither Flippy nor Lexolotl shows ads.
Which is updated more often, Flippy or Lexolotl?
Flippy ships an update every 9 days, and Lexolotl every 3 days. Most recently, Flippy was updated on November 3, 2026 and Lexolotl on October 31, 2026.

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