Step 1 — Create Your Account and Get Your Starter Deck
Two minutes. Any device.
Head to linguafit.ai and start your free trial. No credit card needed. When you sign up, LinguaFit asks about your current Spanish level and your goals. Answer honestly — this shapes your starter vocabulary deck and sets the proficiency baseline for everything that follows.
Your starter Word Deck appears in your LinguaVault immediately. These are high-frequency Spanish words calibrated to your level — the foundation your vocabulary will build from.
Not sure what level to select? Pick the one that feels slightly too easy. The Proficiency Assessment after your first session will tell you exactly where you are.
Step 2 — Install the LinguaFit Sidekick
Desktop only. Takes 60 seconds.
The Sidekick is a Chrome extension. Find it in the Chrome Web Store by searching 'LinguaFit,' add it to Chrome, and pin it to your toolbar so it's always one click away.
That's the entire setup. The Sidekick activates on any webpage you choose — you don't configure anything in advance.
The Sidekick is a desktop tool — it works on laptops and desktops. The LinguaVault works on any device including mobile, so you can review vocabulary anywhere.
Step 3 — Your First LinguaVault Session
15–20 minutes. Any device. Start here.
Open your LinguaVault and work through your starter deck. This is where LinguaFit differs from every app you've used before — there are no multiple choice questions. For each word, you produce the answer from scratch. Type it. No options, no hints.
It will feel harder than other apps. That difficulty is not a bug — it is the science working. The act of struggling to retrieve a word is what makes it stick.
After your review session, hit Quiz Me. The AI generates a short story using the specific words you just reviewed, at your proficiency level, then asks you comprehension questions about it. Read the story. Answer the questions. This is active retrieval in real context — the most effective practice session you can have.
Words you marked Again or Hard? One tap brings them back for an immediate second pass. Don't skip this — those are the words that need the most work right now.
Rate each word honestly — Again, Hard, Good, or Easy. Every rating trains the FSRS algorithm to personalize your review schedule. The more accurately you rate, the more efficiently the system works.
Step 4 — Your First Sidekick Session
20–30 minutes. Desktop. Read something you actually want to read.
Open Chrome and navigate to any English article, blog post, or news piece you'd genuinely read anyway. Your favorite sports site. A tech blog you follow. A news source you trust. It doesn't matter what — what matters is that you care about it.
Click the LinguaFit Sidekick icon in your toolbar. The page splits: English on the left, Spanish on the right. The Spanish is not a direct translation — it's a rewrite of the content at your exact proficiency level, adapted by AI to sit just above where you are.
Read the Spanish side. Use the English side when you need it — there's no penalty for looking. The split screen exists precisely so you never have to fight through frustration. The goal is forward momentum, not suffering.
When you encounter a word you want to learn, right-click it. It captures directly into your LinguaVault for future review sessions — no copying, no separate app, no breaking your reading flow.
At the end of each paragraph, hit Quiz Me for a comprehension question about what you just read. Answer it. This is the moment passive reading becomes active learning.
You can adjust your proficiency level up or down directly in the Sidekick — increase it when the Spanish feels too easy, decrease it when you're hitting too many unknowns. Trust your instincts.
Step 5 — Check Your Proficiency Assessment
After your first session — this is the part most people don't expect.
After each session, LinguaFit generates a Proficiency Assessment. Open it.
You'll see your current CEFR level — the international standard for language proficiency, from A1 (complete beginner) to C2 (near-native). You'll see your GSL score. And you'll see a detailed AI analysis of your specific performance: what you know solidly, what's still fragile, and what's actively being acquired.
Most people are surprised by this. Not because it's discouraging — because it's specific in a way no language app has ever been before. This isn't 'you completed 3 lessons.' This is 'here is exactly where your Spanish stands, and here is why.'
Bookmark this. Come back to it after every few sessions. Watching your CEFR level and Stability trend move is one of the most motivating things in the product.
Your Retrievability score shows how much of your active vocabulary is currently accessible. Your Average Stability trend shows how your vocabulary is compounding over time. Both charts are in your LinguaVault dashboard.
