Words fade within days
Without timely review, most new words are gone after a week.
Language learners
Remember vocabulary longer, use it in the right context
Whether you are preparing for IELTS, JLPT or HSK, Doopi brings each word back right before you forget it — with examples and its whole family of related words.
No sign-up needed — explore with sample data right away
Sound familiar?
Learn today, forget by next week
Vocabulary is the hardest part of learning a new language to keep.
You know the meaning, not the usage
Isolated words without examples or word families are hard to use naturally.
An ever-growing word list
Notebooks and scattered notes are hard to review and harder to search.
Words in context
Every word comes with examples and related words
Add example sentences and grammar notes, and link words to synonyms, antonyms and look-alikes. Press I while studying to see the whole network.
- Collocations, sentence patterns and pronunciation in the note page
- Kanji and Chinese characters linked to their radicals
- Drill confusable words right before the exam
Perfect timing
A Leitner schedule remembers what to review for you
Known words come back less and less often; tricky ones return sooner. Fifteen minutes a day keeps your vocabulary alive.
- Swipe through cards on your phone on the bus
- Star hard words and drill them at the weekend
- A study streak keeps the habit going
By topic
Decks by topic, sessions by goal
Split vocabulary by IELTS topic (Education, Environment, Technology…) or JLPT level, then combine decks into a review session before test day.
- Nested folders: Languages › English › IELTS
- A “Writing Task 2 vocabulary” session spanning topics
- Capture new words in the Inbox during class
Deck ideas
Start with decks like these
Included in the trial account so you can see how they are organised.
IELTS — Education, Environment, Technology
Academic vocabulary for Writing and Speaking topics.
Phrasal verbs & idioms
Everyday phrasal verbs and idioms with examples.
JLPT N5 — kanji & vocabulary
Meanings, on/kun readings and compound words.
HSK 1 & radicals
Characters, pinyin, meanings and radicals.
Frequently asked questions
Is Doopi good for IELTS preparation?
Yes. Organise vocabulary by Writing and Speaking topics, add collocations and examples, and review with spaced repetition. The trial account includes sample IELTS decks.
Can I learn Japanese or Chinese?
Yes. Cards display kanji, Chinese characters, kana and pinyin well, and you can link characters to radicals and compounds to learn them systematically.
How many new words should I learn per day?
Around 10–20 new words plus all due reviews is a sustainable pace. The Leitner schedule stretches intervals as you learn them.
Start studying smarter today
Explore with sample data right away, or create an account and build your first deck in minutes.