Lingua Vincolata
Chat in Italian using only the words you actually know.
A chat tutor that physically cannot use a word you don't know. Every reply is checked against your personal word bank — on the server, before you ever see it.
No signup needed — 15 free messages, no email required.
How it works
You pick what you know
Mark the words and grammar rules you're comfortable with. Your word bank is the contract.
The model drafts a reply
The AI writes in Italian, guided by your bank — but the prompt is only a hint.
The validator checks it
Any reply containing a form outside your bank is rejected and sent back for repair — up to 4 automatic rewrites per message.
This is the part no generic AI tutor can copy: the check is not merely requested in a prompt. A server-side validator compiles every conjugation and plural of every word you know — resolved from a real Italian morphological lexicon, not a word list — and rejects anything outside it before you see it.
Built around you
A word bank that grows with you
Tap any word to look it up, add new words as the AI introduces them, and watch your allowed vocabulary — and the chat — expand.
Grammar unlocks
Unlock tenses one at a time: present, past, imperfect, future. The AI can only use forms whose rules you've turned on.
Check yourself
Ask “is this correct and natural Italian?” on anything you typed, and get a rewrite with an explanation — on demand.
Pricing
Free
$0
- 15 messages, no signup required
- Word bank, grammar unlocks, voice input, and audio replies — all included
- Create a free account any time to save your progress
Pro
$7.99/month
- Unlimited chat — no credit meter
- Everything in Free
- Fair-use cap: 192 actions/day
Cancel anytime — access continues to the end of the paid period. See refunds.
FAQ
Do I need to create an account to try it?
No. You can start chatting immediately with 15 free messages across chat, voice, and grammar checks — no email, no signup. Creating a free account doesn't add more messages, but it saves your conversation and word bank instead of them expiring after a week.
How is this different from just asking an AI to use simple words?
Prompts are suggestions; they can and do drift. Here every reply passes a server-side validator that checks each word against the full inflection table of your word bank. If it slips, it's rewritten automatically before you see it.
Is the Italian always correct?
The vocabulary guarantee is strict — no word you don't know. The Italian itself is generated by AI and can contain errors; treat it as a learning aid and use the built-in “check” button when in doubt.
What happens when my free messages run out?
You can upgrade to Pro for unlimited chat, or keep using the free tier's word bank and grammar features. Free credits never expire.
Can I delete my data?
Yes — delete your account yourself in Settings, anytime. See the account deletion page for exactly what is removed and what is kept.