Speak to Lucía, your Spanish AI partner. She’s briefed on the words you’ve been reading, so you practise saying what you actually want to say.
No card to start · a free trial of the whole loop
Reader
Short stories, pitched to your level whilst staying challenging. Tap any word or phrase that you don’t know to practice later.
Tap any word to save it. Narration reads along as you go
Tap adjacent words to build a phrase
See the full definition: grammar notes, real examples, how it’s actually used
Refresh
Every card is a word or phrase you chose to save, never a generic deck. Each one keeps the real sentence where you first met it, and the ones you find hard come back sooner while the ones you already know come back less often.
Every card came from a word or phrase you saved
Flip it and answer honestly. Your answer sets when it comes back
Look up the full conjugation table, reference only. It never counts as a review
The one idea
You can save words new to you while reading articles and speaking to Lucía in voice notes. Flashcards then help you remember those words. And every word you save feeds back into the next article, the next card, the next conversation.
Read native Spanish, then tap to save new words.
Your saved words become the flashcards.
Say them aloud, and save new ones Lucía uses.
How you actually improve
Fluir doesn’t quiz you up a ladder or hand out fake “level-up” badges. It grows the one thing that truly moves you from B1 to B2: the Spanish words you can recognise and say. It also quietly keeps everything you read at the exact difficulty where learning is fastest.
Vocabulary coverage of each level’s core Spanish, not a self-assessed score.
You’ll see something like “~4 months to B2 at your pace”, an honest example from the real in-app projection.
Each saved word moves through your graph: met → known → said out loud. That growing vocabulary is your real level.
As your vocabulary grows, Fluir serves articles you understand ~95% of, never too easy, never a wall. Difficulty rises with you, automatically.
We track your coverage of the real CEFR vocabulary for each level (Instituto Cervantes, Cambridge) and show an honest pace that slows if you do. No inflated numbers.
Value first, always
No card at signup. No demo. Read a complete, narrated article and tap to save words, do a real round of flashcards built from those words, then spend a minute talking with Lucía. Feel the whole loop for yourself before you decide anything.
Start free, no cardHow we treat you
You’re a motivated adult, not a target for compulsion loops. Fluir is built to respect that.
No “are you sure?”, no retention survey, no guilt. Leave whenever you like, and keep every word you saved.
Your “~7 months to C1” projection reflects real usage, and slows down honestly if you do. No inflated numbers.
We only reach out on a real fact about your learning: cards actually due, a milestone actually hit. One a day, max. Opt-in.
Simple, honest pricing
Less than a single hour with a tutor: the whole stack, unified.
Annual
billed annually
Monthly
Flexible. Cancel any time.
Reading and Refresh are always uncapped. Your free article, a round of flashcards, and a minute with Lucía come first, and the free trial starts only when you choose it.
Questions, answered
Because five minutes every day beats an hour once a week. Speaking is a habit before it is a skill, and short daily production is what builds it: five unbroken minutes of speaking Spanish out loud is genuinely hard work, and it is work you will actually do on a Tuesday evening.
It is a firm allowance, and it is part of what holds the price down. Both halves of the conversation count toward it, your speaking and Lucía’s replies, so it is five minutes of real exchange rather than five minutes of monologue.
Everything around it is uncapped. Read as much as you like: stories, dialogues, scenarios and opinion pieces, pitched at your level. Run as many flashcards as you want, every day. The speaking is the part with a number on it because it is the part that is hardest to get anywhere else.
No. It is the assumption the whole thing is built on.
Fluir tracks recognition and production separately, because they are separate. A word you save is met. A word you recognise reliably in flashcards, over at least three weeks, becomes known. It becomes said out loud only when you actually say it, correctly, in a spoken conversation. Typing it never counts, however right you are.
So the gap you are describing shows up on screen as a real gap, and closing it is the only thing the app is trying to do. Your reading level decides which articles you get. Your speaking is measured on its own terms, and it starts where it starts.
Not “so, tell me about your weekend.”
Lucía starts by helping you build one sentence. She gives you a short meaning in English, you say the Spanish out loud, just three to eight words, and she adds a piece at a time until you have said something longer than you would have attempted cold. It is built from words you have saved, so you are not reaching for vocabulary you have never met. If you stall, “Stuck?” gives you hints one at a time: a nudge at the structure first, a partial sentence later, the actual form only at the end.
Then she takes a phrase from the sentence you just built and asks you something real with it, and you are in an actual conversation without having noticed the join. How much she holds your hand from there follows how you are actually doing: as your speaking gets stronger she speaks more naturally, corrects more lightly and prompts you less. If you have a hard day, the support comes back. It is not a level you unlock.
Corrections are capped at two per turn, and on spoken turns she is deliberately cautious: speech recognition mishears people, and being corrected for something you did not say is worse than a correction you did not get.
If speaking is genuinely impossible right now, you can type a turn instead. It is there as the exception, not a second mode.
No, and she is not meant to be. A person notices things about you that a model does not, and being accountable to someone is its own kind of motivation.
What Lucía gives you is regularity. Speaking is the one skill you cannot build by consuming: you can read and listen for years and still freeze, because producing Spanish out loud, under a little time pressure, is a different act. There is nothing to book, no time to agree with anyone, and no hourly rate to weigh up before you open your mouth: she is there on the evening you have five minutes, and she does not mind you restarting the same sentence four times. If you already see a tutor, this is what makes those hours worth more.
It is generated, and we would rather say so than let you assume there is a newsroom behind it.
Every article is written by a language model and then measured: a Spanish NLP pipeline scores its actual difficulty against the level it was written for, and anything outside that band is rejected and regenerated overnight. Nothing reaches you that failed its own difficulty check.
We never generate news: a generated article that reads like journalism will contain invented names, dates and figures, and that is a real harm rather than a rough edge. So it is fiction, dialogue, scenarios and opinion pieces, which carry no factual burden.
Nothing happens. There is a small streak counter on your home screen, and if it goes back to zero, that is the whole of the consequence: no progress lost, no notification asking where you have been, nothing withheld until you return. It counts days. It is not holding anything of yours. The difference we care about is between having a counter and building a product around the fear of breaking one.
Your flashcards will have piled up, and we are not going to pretend otherwise: spaced repetition works by showing you things when they come due, so a week away means a bigger queue when you return. But nothing is deleted and nothing is marked failed. New cards are limited per day so the pile cannot run away from you, and everything genuinely due is shown rather than quietly trimmed to make the number look kinder.
Come back, do one round, read one story. The backlog comes down as you work through it, and none of it is designed to make you feel behind.
Start free: a narrated article, a round of flashcards, and a minute with Lucía. No card, no commitment: just the loop, working for you.
Start free, no cardFree to try · then a free trial· cancel in one tap