iOS · 11 languages · Spaced repetition

Stop forgettingthe words you learn.

FreeLingo turns your word books, notes, and screenshots into a daily review plan that brings each word back right before you would forget it.

Download on the App Store
Scan to install freelingo.ai/app
See how it works
FreeLingo - Featured on Product Hunt Free to start1,300+ word booksImport your own materials8-step review scheduleiCloud sync
FreeLingo App Store screenshot 1 for en-US

The memory gap

You don't have a memory problem. You have a timing problem.

Most new words fade within days if they never come back. FreeLingo schedules each word to return at the eight moments your memory needs it — from 30 minutes to 30 days — and adjusts for overdue reviews and error rate.

Memory retention curve comparison Without review, memory drops quickly. FreeLingo review points reinforce retention over time. 30 min 12 h 1 day 2 days 4 days 7 days 15 days 30 days Memory strength Time With FreeLingo Without review
  1. 01 30 min
  2. 02 12 h
  3. 03 1 day
  4. 04 2 days
  5. 05 4 days
  6. 06 7 days
  7. 07 15 days
  8. 08 30 days

Product flow

From material to memory, one clear path.

Add materials, let FreeLingo shape them into a plan, then open the app and know exactly what to review next.

Add material screenshot
01

Add material

Start from word books, notes, screenshots, pasted text, files, OCR, or voice input.

Build the plan screenshot
02

Build the plan

Preview vocabulary, filter duplicates, and keep only the words that should enter your review cycle.

Review today screenshot
03

Review today

The home screen tells you what to learn, review, or finish today so the next step stays clear.

AI

Three layers of AI, working together.

AI is not a side chatbot. It runs through word cards, conversation practice, and personalized review cards built from the words you are actually studying.

AI Word Cards

Rich word cards powered by AI.

For 9 languages, FreeLingo goes beyond a basic translation. Each card surfaces the details that actually help you remember — phonetics, collocations, word forms, example sentences, and language-specific notes.

  • French: gender, articles, plural forms, common collocations
  • Arabic: RTL text, transliteration, root & word patterns
  • Russian: stress marks, three genders, aspect pairs
  • Japanese: furigana, reading, pitch accent hints
  • Spanish, Korean, German, Portuguese, Thai: pronunciation & usage notes
Rich word cards powered by AI. screenshot

AI Conversation

Chat with AI that knows your lesson.

FreeLingo's AI chat isn't a separate tool bolted on the side. It knows today's vocabulary, your due reviews, and your recent mistakes — and turns that into focused conversation practice.

  • Multiple AI personas with different conversation styles
  • Context-aware: uses your actual learning data
  • Free users: 5 conversations/day · VIP: 50/day
  • Auto-retry on failures, message history saved locally
Chat with AI that knows your lesson. screenshot

AI Feed

Six types of AI cards to deepen your memory.

The Feed generates personalized cards from words you have already learned, using six different AI lenses to help you see each word from a new angle.

  • Confusion — spot the difference between similar words
  • Intuition — test your instinctive understanding
  • Word Family — explore roots, derivatives, and cousins
  • Scene — see the word in a real-world context
  • Misuse — learn the most common wrong uses
  • Emotion — understand the emotional register
Six types of AI cards to deepen your memory. screenshot

Resource Library

1,300+ ready-made word books

Browse by language, level, or topic. Every book is ready to add to your study plan — no setup needed.

Categories

Primary schoolMiddle schoolHigh schoolCET-4 & CET-6Postgrad entranceTOEFL & IELTSBusiness English (BEC)Medical EnglishLawChemistryComputer scienceFriends (TV show)

Popular books

  • CET-6 core vocabulary
  • TOEFL root + association
  • BEC high-frequency
  • Medical specialty terms
  • Android / Java / JS terms

Categories

JLPT N5 – N1Basic entryPronunciation & kanaCore grammarScene conversationListening & readingCulture & communicationHigh-frequency phrasesExam prepSpecialized terms

Popular books

  • JLPT N1 expert-level
  • JLPT N2 – N5 graded sets
  • Daily conversation topics
  • Campus & study abroad
  • Workplace & business

Categories

Entry basicsPronunciation & scriptCore grammarScene conversationListening & readingTOPIK exam prepHigh-frequency phrasesProverbs & idiomsCulture & communicationSpecialized terms

Popular books

  • TOPIK graded vocabulary
  • Easily confused & synonyms
  • Proverbs & set expressions
  • Workplace Korean

Categories

Entry basicsPronunciation & stressCore grammarScene conversationDELE A1 – B2SIELE comprehensiveHigh-frequency phrasesCulture & communicationSpecialized termsReview & assessment

Popular books

  • DELE A1-A2 & B1-B2
  • SIELE comprehensive
  • Travel & city life
  • Work & social

Categories

HSK graded vocabularyBasic entryDaily lifeTravel ChineseBusiness & workplaceStudy abroadYouth / childrenCulture & exchange

Popular books

  • HSK level-graded words
  • Mock tests & skills drills
  • Office & meeting scenarios
  • Medical & banking daily tasks

Categories

Entry basicsPronunciation & spellingCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Travel & city life
  • Study, work & social
  • Residence & public affairs
  • Dining & shopping

Categories

Entry basicsPronunciation & spellingCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Beginner to advanced
  • Everyday conversation
  • Grammar-focused sets

Categories

Entry basicsPronunciation & spellingCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Beginner to advanced
  • Scene-based learning
  • High-frequency collocations

Categories

Entry basicsScript & pronunciationCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Arabic script entry
  • Everyday & travel topics
  • Professional vocabulary

Categories

Entry basicsScript & pronunciationCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Cyrillic script entry
  • Grammar & aspect pairs
  • Daily & travel phrases

Categories

Entry basicsScript & pronunciationCore grammarScene conversationExam prepHigh-frequency phrasesCulture & communicationSpecialized terms

Popular books

  • Thai script & tones
  • Conversation topics
  • Beginner to intermediate

Or import your own materials — FreeLingo turns them into review plans:

Learning paths

Choose the vocabulary goal you want to start with.

Pick a language, review method, or material source. FreeLingo turns real study material into a plan you can keep reviewing.

Pricing

Start free. Upgrade when you need more.

Start with the free plan. Upgrade to VIP for unlimited plans, full review rounds, deeper AI, and advanced learning analytics.

Free

Start building your vocabulary system.

  • 1 active learning plan
  • First 3 review rounds per plan
  • Full card & listening review
  • All 6 content formats
  • 5 AI conversations per day
  • Core Feed cards
  • Lock screen widget
  • iCloud sync
  • 1 active plan at a time
  • Reviews limited to round 3
  • Poetry PDF export has watermark
Most popular

VIP

Unlimited plans, deeper AI, and no limits.

  • Unlimited active plans
  • All 8 Ebbinghaus review rounds
  • 50 AI conversations per day
  • Full AI Feed deep cards
  • Watermark-free PDF export
  • Advanced study analytics
  • Priority access to new features
Get VIP

Lifetime

Buy once. All VIP features. Forever.

  • Everything in VIP
  • One-time purchase — no subscription
  • All future updates included
Buy Lifetime

FAQ

Frequently asked questions.

FreeLingo supports 11 target learning languages: English, Chinese, Japanese, Spanish, Korean, German, French, Portuguese, Thai, Arabic, and Russian. Several languages include AI-powered word cards with pronunciation, examples, collocations, and language-specific notes.

After you study a plan, FreeLingo schedules review sessions around 30 minutes, 12 hours, 1 day, 2 days, 4 days, 7 days, 15 days, and 30 days later. The app also considers overdue reviews, error rate, and review performance so you know what to study today.

AI helps generate richer word cards, practice prompts, conversation practice, and personalized review content from the words you are studying. AI content supports learning and should not replace dictionaries, textbooks, or official exam standards.

No separate account is required. FreeLingo uses a device-based identity and can sync core learning data through iCloud, so you can download the app and start building vocabulary plans quickly.

Yes. FreeLingo supports pasted text, TXT, CSV, Word, Markdown, OCR images, camera scans, and voice materials. After import, you can preview the vocabulary, filter basic words, remove duplicates, and create or extend a learning plan.

FreeLingo is free to start, with one active learning plan and core review features. VIP unlocks more plans, full review rounds, higher AI limits, and advanced features. Current pricing is shown in the App Store.

Previously studied content can be reviewed offline with flashcards, listening review, and progress tracking. AI conversation, resource exploration, and some AI word-card features require a network connection.

FreeLingo focuses on learning plans, imported materials, and spaced repetition. Instead of only storing word lists, it connects word books, custom materials, AI word cards, listening review, lock screen practice, and Ebbinghaus-style review checkpoints.

Start today

Build a vocabulary system that lasts.

Download FreeLingo and turn today's real materials into tomorrow's review plan.

Download on the App Store
Scan to install freelingo.ai/app