01Today
One button a day
Today opens on the right review and the time you have: 3, 7 or 15 minutes.
Vocabulary trainer · 20 languages
Every word you learn becomes a star.
Paste the words you need, practice seven minutes a day, and watch each one climb, rung by rung, until it's in use.
Start your 7-day Pro trialNo card. Free after that — and you keep everything.
See the app inside17 need you104 stars
20Languages
50,000Words mapped per language
4Practice modes
Inside the app
Real screens, running live.
A sample learner's German on the app's own screens. The sky is real: tap a constellation.
02Flow
One word at a time
The word up big, its meanings, a five-rung ladder, and one exercise picked for where it stands.
03Sky
Progress you can see
Each list is a constellation, each word a star that brightens as you learn it. Tap one.
Start your 7-day Pro trialNo card. Free after that — and you keep everything.
04Lists
Paste your own list
Tap + and paste words from a class, a book or a show. They become a list on the spot.
Flow
Seven minutes a day
You pick the time. The engine does the rest.
- 7min01
Pick your time
3, 7 or 15 minutes. The session fits the time, not the other way round.
- New wordAhnungNew0/402
The engine picks the words
Each session teaches a few new words and brings back the ones due, each with the exercise its rung calls for.
- 03
Watch your sky grow
Every right answer lights a star. The rest you'll see in your first session.
The numbers
20 languages.
50,000 words each.
∞ ways to learn them.
Vocabai isn't a course you finish. It's a vocabulary substrate you compose against — for whatever language, whatever level, whatever context you're heading into next.
Six reasons it's different
Most language apps are video games. Ours respects the language.
Your words, as a sky
Every word you add is a star; every list, a constellation. A star's color shows how far that word has come.
3, 7 or 15 minutes
Pick the time; Flow picks the exercise for each word — taught first, then recognized, then recalled. Reviews come back when they're due.
Bring your own list
Tap + and paste the words from your class, book or chat — they become a list in one step. No list yet? Start from a ready-made one.
A real dictionary under every word
IPA, CEFR level and separate senses — 'bank' the river and 'bank' the money are tracked apart. Translations come in your own language.
20 languages, 50,000 words each
Learn any of 20 languages on a 50,000-word map per language. The app itself speaks those 20 languages too.
Four ways to practice
Flashcards, quiz and matching — and, in Beta, a conversation with AI for when you want to go further.
In their words
I'm moving abroad to start university, so I'm using Vocabai to improve my conversational English before I'm surrounded by an English-speaking environment.
Italian was always the language I said I'd learn one day. Building my own lists and then actually having to talk about them is the first time it stuck.
Questions, answered
Frequently — and honestly — asked.
They give you a syllabus. Vocabai starts from your words: paste the list from your class, book or show — or start from a ready-made one — and Flow decides what each word needs today. You're not waiting for a unit to unlock; you're learning the vocabulary your life actually asks for.
Pricing
Start on Pro. Stay for free.
Every new account gets 7 days of Pro — no card, nothing to cancel. After that you're on Free and keep every list, word and bit of progress.
7 days of Pro, no card
No card. Free after that — and you keep everything.
Free
ForeverBuild the habit. No card.
$0
- 3 lists · 50 words each
- Flow · Flashcards · Quiz · Matching
- 2 VocabChat conversations / month
- 1 learning language active
Where every account lands after the trial.
Pro
−40% AnnualYour own lists, no cap. All your languages.
$5.99/ mo
Billed $71.88 a year · or $9.99 month to month
- Unlimited lists & words
- VocabChat (Beta) · up to 40 conversations a month
- All languages active at once
- CEFR filters · folders · advanced SRS · export
No card needed
Cancel anytime · no hidden fees · See all pricing
Your sky starts with one word.
7 days of Pro, no card. Paste your list, give Flow 7 minutes, and watch your sky light up.