English StartupLinh · Kaycy · Lucas
Everything we made, in one place
Research, decks, the exercise library and 80 working examples. Every page has the same menu at the bottom, and Versions keeps the older copies.
Talk with AI · real AI, free
Type or tap 🎤 (Chrome/Edge). Replies come from Cloudflare's free AI; up to 150 replies a day for the whole site, then the page uses its written script.
AI asks, hint fadesAI hỏi, gợi ý mờ dần · Three similar questions: full sample answer, then half, then none.Say it in Vietnamese when stuckKẹt thì nói tiếng Việt · Drop a Vietnamese word mid-sentence; get the English word and your full sentence back.Work role-play with AINhập vai công việc với AI · Talk to 'Mr Brown', an unhappy client, and tick 3 goals: apologise, give a date, offer a fix.Video call with an AI characterGọi video với nhân vật AI · A 2-minute call with 'Anna from HR': press to talk, she answers aloud, transcript after.Free talk with AINói chuyện tự do với AI · Talk about anything; the scripted partner picks up your words and asks back.Mock speaking exam roomPhòng thi nói thử · 3 questions, 15 s to think, 45 s to speak each; a scored summary at the end.Ask the AI tutorHỏi gia sư AI · Ask 'why X not Y?' — 8 common questions answered by script, anything else needs the key.Choose how strict the checking isChọn mức chấm chặt hay lỏng · Same answer, three strictness levels: see how much red you get at each.Feedback button on each lineNút góp ý trên từng câu · Chat normally; tap 'Góp ý' under any of your lines to see a fix, even mid-conversation.Private report after the talkBáo cáo riêng sau buổi nói · A private after-talk report: what went well, 3 fixes, words to reuse, and a 1-minute re-drill.
Exercises · round 7 (Sep 2026)
Exercise LibraryAll 80 exercises, 4 ways to sort, with 'Try our example' buttons.Exercise Examples (80)One working example per exercise + real-world links. AI pages use real AI.Talk with AI (10) · real AIThe 10 AI exercises: role-play, tutor, free talk, exam room… with real AI replies.Exercise Menu (49)The first menu: 49 solo exercise types with phone sketches.Ranks and Games15 team games and motivation mechanics.30-Day Curriculum3 options for the 30-day challenge, day by day.
Research & decks (Aug 2026)
Anatomy of the working learnerPsychology + adult-learning science deck, 21 Aug.Deck v5 (slide kit)16-slide deck rebuilt on the new layout kit, 21 Aug.Research file (19 Aug)Competitors, studies, market, questions.Full file (19 Aug)The complete dossier for Linh · Kaycy · Lucas.Meeting 2 summarySummary slides of the second meeting, 19 Aug.Product & growth (round 4)How learning products pull people in.Five customer portraitsWho the learners are, 17 Aug.
Early drafts (mid Aug 2026)
First research fileThe first presentation of the research, 16 Aug.Market research'Airbnb for learning English' market slides.Reclub teardownReclub + Duolingo lessons for our model.Product mockup (90-day)The first 90-day product sketch (before the 30-day switch).Sales page draft (90-day)Old sales page draft. Out of date: the plan is now 30 days.