Type quickly
Use a simple add flow for one word or repeated entry.
Vocabulary trainer for real-life language learning
Remember the words you meet in real life.
Capture words from books, videos, conversations, classes, and travel. UnLethe turns them into a calm daily memory plan with smart review, focused practice, and a vocabulary library that grows with you.
Built for learners who collect words everywhere - and want to keep them.
The problem
New words disappear fast.
You hear a useful phrase, see a word in a book, or write something down during a lesson. Then it gets buried in a note, a screenshot, or a translation app.
UnLethe gives every word a place to go - and a reason to come back.
- Save words before you forget them
- Add meaning, examples, forms, notes, and tags
- Review the right words at the right time
- Practice without turning learning into pressure
Capture
Capture words before they vanish.
Add a word, phrase, or meaning in seconds. Type it manually, scan text with the camera, use photo OCR, or dictate with voice. Review recognized words before saving so your vocabulary stays clean.
Scan from real text
Capture words from pages, notes, screenshots, or photos.
Use your voice
Dictate a word or phrase, then correct it before saving.
Batch add carefully
Select recognized words before they enter your vocabulary.
Enrich
Give every word useful context.
A word is easier to remember when it has meaning around it. UnLethe helps you build rich vocabulary entries with translations, examples, forms, notes, tags, and usage details.
AI can help fill in context when available, but you stay in control. Edit anything. Correct anything. Your version wins.
Translations
Keep the meaning clear in your native language.
Examples
See how the word behaves in context.
Forms
Learn useful variations instead of isolated dictionary entries.
Tags and notes
Organize words by class, topic, source, trip, book, or goal.
Review
Review what matters today.
UnLethe uses smart spaced review to help you remember words over time. Instead of dumping every overdue word on you, it builds a manageable daily memory plan and introduces new words gradually.
You answer focused tasks, get feedback, and move words through a learning ladder - from recognition to independent production.
A daily memory plan
See the useful work for today, not an intimidating backlog.
Smart scheduling
Review timing adapts behind the scenes based on your answers.
Learning ladder
Words move through recognition, guided recall, contextual recall, and independent production.
Gentle repair
Mistakes become targeted follow-up, not failure.
Practice
Practice without changing your review schedule.
Need extra work before a lesson, trip, test, or conversation? Practice freely by mode, tag, or upcoming review words.
Practice records your activity and helps you prepare, but it does not disturb the official review schedule. Review is for memory progress. Practice is for preparation.
Deep Practice
Next Review
Listening
Cloze and sentence tasks
Forms
Progress
Build rhythm without streak pressure.
Consistency matters, but shame does not help memory. UnLethe shows your weekly rhythm, review activity, vocabulary growth, and learning-stage breakdown so you can see what is improving.
Miss a few days? The app welcomes you back with a small useful plan and spreads recovery work out gently.
Weekly Rhythm
Track consistency against your preferred target: light, steady, or daily.
Vocabulary breakdown
See words by learning stage, part of speech, and progress.
Widgets
Keep daily missions, due cards, word of the day, and stats visible.
Reminders
Get nudges for review, rhythm, and word practice.
How it works
How UnLethe works
Capture a word
Type, scan, use photo OCR, or dictate with voice.
Add context
Use translations, examples, forms, tags, and notes to make the word memorable.
Review today's plan
Answer focused tasks selected for your current learning stage.
Practice when you want
Train listening, cloze, forms, recall, matching, and sentence tasks without disrupting your review schedule.
FAQ
Questions
What is UnLethe?
UnLethe is an iPhone vocabulary trainer for language learners. It helps you capture new words, enrich them with useful context, review them with spaced repetition, and practice them through focused exercises.
Is UnLethe a flashcard app?
Partly, but it goes beyond simple flashcards. UnLethe uses review tasks, listening, cloze, forms, sentence exercises, and a learning ladder that moves words from recognition toward independent production.
Can I add words from photos or speech?
Yes. You can type words manually, scan text with the camera, use OCR from photos, or capture words by voice, then correct them before saving.
Does AI learn the words for me?
No. AI can help create useful context such as translations, examples, and forms when available. You can edit the result, and your corrections take priority.
What happens if I miss a few days?
UnLethe does not punish you with a huge guilt-based backlog. It gives you a manageable recovery plan and helps repair memory gently.
What is the difference between Review and Practice?
Review is the official memory schedule. It updates learning progress and decides when words should return. Practice is free preparation: it helps you train, but it does not change your review schedule.
Can I organize words by topic?
Yes. You can use tags, notes, filters, search, and mastery stages to keep your vocabulary organized.
Is UnLethe for one language or many?
UnLethe uses one native language and supports multiple target languages from a curated language catalog. You can switch your active target language from Profile.
Start remembering the words you keep meeting.
Build a vocabulary from your real life - books, videos, conversations, lessons, and travel - then review it with a daily plan that stays manageable.
UnLethe is built for iPhone.