Comparison

Flips vs LeitnerAI

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

Head to head
About

Flips

This app uses spaced repetition flashcards to help you learn Japanese vocabulary and phrases. It prioritizes words you're likely to forget and offers various study modes to build consistent learning habits.

Highlights
  • Spaced repetition review
  • Flashcard and 4-choice modes
  • Progress tracking and mastery levels
  • Custom deck creation and import
  • Smart review reminders
  • Text-to-Speech pronunciation
Features
Read full description

Flips is a flashcard app that brings back each card right before you're about to forget it. Built on the forgetting curve and spaced repetition (SRS), it works for anything worth memorizing — vocabulary, exam terms, dates, professional jargon, and more. Key Features ・Just-in-time review (SRS) Cards resurface automatically at the best moment to review. Mastered cards space out; shaky ones come back sooner — the shortest path to remembering. ・Simple, fast study sessions Open the app and start right away. Swipe or pick from 4 choices — nothing gets in the way of focus. ・Memory home screen A chart shows what you've learned, what's fading, and what's new at a glance. Today's study count is always clear. ・Streaks to build the habit Your study streak is shown like a calendar, so daily effort visibly adds up. ・Forgetting gauge & levels See each card's "risk level" in your deck list, so you always know what to review first. ・Create decks & import Build a deck in minutes, or import from CSV/TSV. ・Notifications at the right time Get reminded exactly when review will be most effective. ・Text-to-speech (TTS) Hear pronunciation for listening practice or a quick check. (Supported languages depend on your device; more are added over time.) Great for ・Language vocabulary: words, phrases, listening practice — Spanish, French, Japanese, or any language ・School & exams: history dates, science terms, formulas, standardized test prep ・Certifications: professional exams, medical, legal, and IT terminology ・Anything else: whatever you need to memorize How it works (3 steps) 1. Pick a deck or make one (ready-made vocabulary decks, or build your own) 2. Start studying (cards you're about to forget come up first) 3. A little every day (streaks and charts make progress visible) Why you'll remember with Flips ・Science-based: spaced repetition tuned to the forgetting curve optimizes your review timing ・Built for focus: a stripped-down interface, studying in two taps ・Priorities made visible: the forgetting gauge and "due today" count remove the guesswork ・Built for habit: streaks keep you coming back Common ways people use Flips ・Students: vocabulary, historical dates, formulas, test prep ・Working professionals: certification vocabulary, technical terms, on-the-job knowledge ・Language learners: vocabulary across any language you're studying What Flips values ・Simple and fast: built to help you focus purely on remembering ・Visible progress: progress, streaks, and forgetting risk, always in view ・Flexibility: build your own decks or import to fit any subject Start for free, and build a study habit around reviewing right before you forget. Terms of Service (EULA): https://bitflap.app/flips/terms/ Privacy Policy: https://bitflap.app/flips/privacy/

About

LeitnerAI

This application uses the Leitner system to help users learn and memorize vocabulary. Words are sorted into boxes based on mastery, with AI assisting in creating an optimal learning path. It focuses on efficient study by prioritizing difficult words.

Highlights
  • Leitner system for spaced repetition
  • Vocabulary memorization
  • AI-generated learning paths
  • Progress tracking through study boxes
  • Focus on difficult words
Features
Read full description

No extra features. No distractions. LeitnerAI uses the proven Leitner system to help you memorize vocabulary through spaced repetition. • 5-box Leitner system — words progress as you learn them • Interactive flashcards with hints and translations • AI-powered word generation (optional) • CSV import for bulk vocabulary • Daily reminders and study streaks • Weekly goals and milestone tracking All words start in Box 1. Remember a word and it moves forward. Forget it and it returns to Box 1. Easy words step aside; hard words get your attention. Built for one thing only: learning and memorizing vocabulary.

Screenshots

Flips4 screens
LeitnerAI4 screens

Verdict

The call

Flips and LeitnerAI both sit at 4.6 stars, but that hides the real split: 100% of LeitnerAI's written reviews are positive against 63% of Flips's. LeitnerAI also leads on in-app purchases (none vs 2) and ads (none vs shown). On price, rating, ratings volume and update cadence 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

Both are free to download. Flips sells 2 in-app purchases, starting at $5.99 per month. LeitnerAI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Flips against 4.5 for LeitnerAI. Both are backed by a comparable volume of ratings — 22 and 8 respectively. Written reviews are what separate them: 63% of Flips's written reviews are positive against 100% of LeitnerAI's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Flips versus LeitnerAI: the parameters behind the verdict, then further details
ParameterFlipsLeitnerAI
PriceFreeFree
Rating4.6 (22 ratings) — better4.5 (8 ratings)
Positive reviews62.5% of reviews100.0% of reviews — better
Number of ratings22 — better8
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better16.0
Further details — not scored
Size123 MB5 MB
Age rating4+4+
DeveloperBitFlap LLCAmir Faghihi

Customer experience

Flips

All ratings18 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

LeitnerAI

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Flips

Subscriptions2
  • Pro Monthly$5.991 Month
  • Pro Yearly$59.991 Year
None

LeitnerAI

No in-app purchases

Questions

Is Flips free?
Flips is free to download, with in-app purchases available.
Is LeitnerAI free?
LeitnerAI is free to download, with no in-app purchases.
Which has better reviews, Flips or LeitnerAI?
Flips is rated higher. Flips averages 4.6 out of 5 from 22 ratings, while LeitnerAI averages 4.5 from 8 ratings.
Do Flips or LeitnerAI have ads?
Flips shows ads; LeitnerAI does not.
Which is updated more often, Flips or LeitnerAI?
Flips ships an update every 3 weeks, and LeitnerAI every 3 weeks. Most recently, Flips was updated on November 5, 2026 and LeitnerAI on October 30, 2026.

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