Comparison

Lexicon vs Thinklit

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

Head to head
About

Lexicon

This app helps you expand your vocabulary using AI-powered flashcards. It supports over 30 languages and uses a spaced repetition system for effective learning. Customize your study sessions and track your progress with detailed statistics.

Highlights
  • Automatic flashcard creation
  • AI-powered definitions and translations
  • Multi-language support (30+ languages)
  • Spaced Repetition System (SRS)
  • Customizable learning experience
  • Progress tracking and statistics
Features
Read full description

Expand Your Vocabulary with Lexicon – The Ultimate Flashcards App Unlock the power of words with Lexicon, your personalized vocabulary flashcards app designed to help you learn and master any language efficiently. Whether you’re enhancing your native language skills or diving into a new language, Lexicon uses cutting-edge AI technology to make learning seamless and effective. Key Features • Automatic Flashcard Creation • Simply add any word, and Lexicon instantly generates a flashcard with a precise definition powered by GPT’s advanced language model. • Multi-Language Support • Learn and translate words in 30+ languages, including popular options like Spanish, French, Chinese, Japanese, Arabic, and many more. Whether it’s European, Asian, African, or even constructed languages like Klingon and Esperanto, Lexicon has you covered. • Seamless Language Learning • Automatically translate words into your chosen language to build your vocabulary effortlessly. Perfect for language learners at any level. • Spaced Repetition System (SRS) • Enhance retention and recall with our scientifically-backed spaced repetition algorithm, ensuring you remember words exactly when you need them. • AI-Powered Definitions and Translations • Unlike traditional apps with limited databases, Lexicon leverages GPT to provide accurate, context-aware definitions and translations for any word you enter. • Customizable Learning Experience • Tailor your study sessions to fit your personal learning style and pace. Track your progress and stay motivated with detailed statistics. • User-Friendly Interface • Enjoy a clean, intuitive design that makes adding, reviewing, and managing your flashcards a breeze. Why Choose Lexicon? • Comprehensive Language Support: From widely spoken languages to niche and constructed ones, Lexicon supports a diverse range to cater to all learners. • AI-Enhanced Learning: Benefit from the latest advancements in language processing with GPT-powered content generation. • Efficient Learning Methodology: Our spaced repetition system maximizes your learning efficiency, helping you build a robust vocabulary faster. • Constant Updates: We continuously expand our language offerings and enhance features based on user feedback to provide the best learning tool possible. Boost Your Language Skills Today! Join thousands of users who are transforming their language learning journey with Lexicon. Whether you’re preparing for exams, traveling, or simply passionate about languages, Lexicon is your go-to app for expanding your vocabulary effectively. Lexicon supports a wide range of languages, including Spanish, French, German, Chinese, Japanese, Korean, Italian, Dutch, Portuguese, Russian, Arabic, Hindi, Bengali, Turkish, Vietnamese, Polish, Ukrainian, Greek, Swedish, Indonesian, Javanese, Kannada, Malay, Marathi, Persian, Punjabi, Tamil, Telugu, Thai, Turkmen, Urdu, Malayalam, Amharic, Swahili, Zulu, Yoruba, Igbo, Hausa, Afrikaans, Somali, Shona, Hebrew, Esperanto, Latin, Klingon, and Lojban. Download Lexicon now and start your journey to mastering new words and languages!

About

Thinklit

Features
Read full description

~ STUDY LESS, SCORE HIGHER ~ ■ Cut study time by 50% ■ Boost test scores by 50% ■ 3x memory retention The next-gen AI flashcard app that makes it happen! "I studied this yesterday, but my mind went blank during the test..." "I can play video games for hours, but fall asleep reading a textbook..." The human brain is naturally wired to forget. But fighting it with sheer willpower and outdated methods is over. Thinklit is a revolutionary app fusing the FSRS spaced repetition algorithm, generative AI, and gamification to make studying effortless and addictive. Snap a photo of your materials, and your digital flashcard deck is ready instantly. Our AI predicts exactly when you'll forget a concept and prompts a review only when necessary. This guarantees 3x memory retention, cuts study time by 50%, and boosts exam scores by 50%! From K-12 tests to college finals and exams like the Bar or USMLE, Thinklit is the smartest AI study method available. ■ 4 Reasons to Choose Thinklit ・Instant AI Flashcards & Official Decks Stop wasting hours typing notes. Build your deck instantly: Camera Scan: Snap a textbook. AI extracts context and key terms to generate perfect Q&A cards in seconds. AI Keywords: Type a concept (e.g., "Photosynthesis") and AI generates relevant questions. CSV Import: Bulk upload existing data seamlessly. Official Decks: Skip creation! Choose from verified sets and start studying immediately. ・Ultimate Spaced Repetition (FSRS) Powered by FSRS (Free Spaced Repetition Scheduler), an algorithm outperforming legacy SRS. It analyzes your memory fluctuations, delaying mastered questions for months while pinpointing weak concepts. This optimized Active Recall guarantees 3x retention and 50% less study time. ・Gamification: Addictive Learning Transform daily memorization into an RPG! Earn XP, level up, and unlock streak bonuses. By stimulating your brain's dopamine reward system, studying becomes an addictive daily habit. ・Collaborative Learning & Parental Support Share decks and battle in real-time Live Quizzes. The Parent Dashboard lets parents track progress effortlessly. Send motivational messages directly, replacing stressful nagging with positive co-learning. Watch their study calendar fill up! ■ Powerful Features ・Multiple Creation Modes: Camera scan, AI generation, and CSV import. ・Official Decks: Premium, verified learning sets. ・FSRS Scheduler: Automated review system backed by neuroscience. ・Study Calendar: Visually track daily streaks and build habits. ・Free Mode (Offline Timer): Track paper/offline study to earn XP. ・Live Quizzes: Real-time multiplayer trivia game. ・Learning Analytics: Visualize forgetting curves and weak subjects. ・Parent Tracking: Monitor progress and send supportive messages. ・Cloud Sync: Study seamlessly across smartphone, tablet, and PC. ■ Achieve Your Goals Faster! ・ [K-12 Students & Parents] Smart Support Digitize math formulas and history timelines instantly. Parents can monitor calendars and send targeted praise to foster a stress-free environment. ・ [High School & College] SAT, AP & Finals Memorize massive vocabulary and complex concepts in half the time. Perfect for college prep and acing finals. ・ [Professional Exams] Conquer Massive Vocabularies Tackling the USMLE, NCLEX, CPA, CFA, or Bar Exam? Let FSRS manage thousands of complex terms. Saving 50% of time is the ultimate advantage. ・ [Language Learners] Skyrocket Your Fluency Prep for TOEFL, IELTS, TOEIC, or learn Spanish, French, Japanese. Build vocabulary efficiently and boost scores by 50%! ■ Our Story Thinklit was built by an AI developer to support their kids through middle school exams. By eliminating the friction of flashcard creation, we put advanced AI directly into learners' hands. Refined by our toughest beta testers—our kids—Thinklit delivers the joy of learning worldwide. ■ Official Website https://thinklit.net/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Lexicon4 screens
Thinklit4 screens

Verdict

The call

The clearest difference is in-app purchases: Lexicon at none against Thinklit's 1. Thinklit's advantage is update cadence (weekly vs every 5 weeks) and device support (3 vs 1). On price and 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

Both are free to download. Thinklit sells 1 in-app purchase, starting at $2.99 per month. Lexicon asks for nothing beyond the download.

UpkeepUpdate frequency

Lexicon ships an update every 5 weeks, Thinklit weekly. The most recent releases landed on November 4, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 4 level
Lexicon versus Thinklit: the parameters behind the verdict, then further details
ParameterLexiconThinklit
PriceFreeFree
Positive reviews100.0% of reviews—
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.215.0 — better
Further details — not scored
Size13 MB59 MB
Age rating4+4+
DeveloperPaul BreslinMindTech LLC

In-app purchases

None

Lexicon

No in-app purchases

1 purchases

Thinklit

Subscriptions1
  • Thinklit Pro$2.991 Month

Questions

Is Lexicon free?
Lexicon is free to download, with no in-app purchases.
Is Thinklit free?
Thinklit is free to download, with in-app purchases available.
Do Lexicon or Thinklit have ads?
Neither Lexicon nor Thinklit shows ads.
Which is updated more often, Lexicon or Thinklit?
Lexicon ships an update every 5 weeks, and Thinklit weekly. Most recently, Lexicon was updated on November 4, 2026 and Thinklit on November 9, 2026.

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