Decilo teaches professional English to Spanish-speaking professionals using AI. Instead of chatting with a generic bot, you watch a short video about a common mistake (like saying "I have a doubt" instead of "I have a question"), then practice using it in a real work scenario — a standup, an email, a job interview — personalized to your profession (developer, doctor, lawyer, finance). The AI corrects you in real time. Free tier with 1 lesson/day. PRO at €7.99/mo unlocks everything.
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Viktor.comAn AI coworker that actually does the work
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Hey PH! I'm Santiago, a full-stack dev from Argentina living in the Netherlands.
I built Decilo because every English app teaches you "the cat is on the table" but none teaches you how to survive a standup in English or write an email without saying "sorry" three times.
Decilo is different: short video lessons about real mistakes LATAM professionals make, AI practice adapted to your job, and voice calls with real-time corrections.
Would love your feedback — especially on the lesson flow. What errors would you want us to cover next?