Sign in once, and that's it.
Use email and password or a one-time code sent to your email; Google sign-in rolls out per platform. The session is kept in the iOS Keychain and Android Keystore, and session data is excluded from Android backups.
Coming soon to the App Store and Google Play
Sign in on your phone with the same account you use on the web. My Library, Flashcards, Learn, and Reader come with you, keeping your Still learning, Know, and Well remembered progress.


Free to download at launch. One account for the web and your phone. Store listings open at launch.
Welcome back
you@example.com
6-digit code
Continue
Continue with Google
Your session lives in the operating system's secure storage.
Two ways to get it, one account. Install on whichever device comes first; the other one keeps up.
Open the app and land right where you were studying. Your session is kept in the iOS Keychain.

Your session is kept in the Android Keystore and stays out of device backups. Switch phones and keep studying.

My Library
Business English
Work24 terms
Everyday phrasal verbs
Daily32 terms
IELTS Reading
Exam18 terms
Every Lesson you built on the web is on your phone, with the same Tags and term counts. Lessons and terms belong to your account, not your device, so wherever you stopped is where you pick up.
Open My Library on the web7 / 24
resilient
able to recover quickly after something difficult
Still learning
Know
Flip the card, rate yourself with Still learning or Know, then move on. Terms you hesitate on come back sooner; the ones that are Well remembered spread further apart.
In a queue, on the bus, waiting for coffee — a few cards at a time is enough to remember longer.
Explore Flashcards4 / 10
Choose the meaning of “resilient”.
recovers quickly after difficulty
hesitant, unsure
plentiful, generous
Unlike self-rated Flashcards, Learn checks what you answered before you move on. You see right away what you missed, and that term comes back until you really remember it.
Explore LearnSmall teams stay resilient because they keep talking to each other, even on the days nothing goes to plan.
Reader opens readings right in the app. Tap a word to see its meaning, then save it as a term — today's reading becomes tomorrow's Flashcard.
Use email and password or a one-time code sent to your email; Google sign-in rolls out per platform. The session is kept in the iOS Keychain and Android Keystore, and session data is excluded from Android backups.
The app shares the same design tokens as the web, so light and dark themes look the way you expect. Switch between Vietnamese and English right in the app.
Build your Library now. When the apps arrive, sign in and your first terms are already waiting.
Store listings open at launch.