It only does running
Not a fitness app with a running tab bolted on. Every number Tuin shows is a runner's number — training stress, fitness, fatigue, form, threshold pace adjusted for the hills you actually climbed. Road, trail, or a 30-hour mountain day: it speaks the same language you do.
Eager, but flexible
Tuin will push you — it wants the goal as much as you do. But a plan that only works if life behaves isn't a plan. Miss a session and it reshapes the week instead of showing you a red streak. The plan serves the goal; it doesn't guard its own tidiness.
You just talk to it
No dropdowns, no sliders, no rebuilding a plan from scratch. Say "my knee is sore, keep it easy this week" or "can we move the long run to Sunday?" and it does it — and tells you what it changed and why. Plain language, in English, Spanish or Catalan.
Life goes in the plan
Holidays, work trips, a wedding, a cold, a week when the kids are ill — tell Tuin and they become part of the plan instead of the reason it fell apart. Because life changes, and a plan that can't hear about it is already out of date.
It shows its reasoning
Every number has a page explaining what it means in plain words, and every change to your plan arrives with the reason attached. You should finish the season understanding your own training — not just having followed instructions.
It lives where you already are
Your runs arrive from Strava on their own — nothing to log, nothing to import. Tuin reads them, works out what the session actually was, and can write the read back onto the activity itself, so the coaching sits right next to the run.