Flex
AI coach, in your pocket.
No app. No performative social media. Just evidence-backed, accessible training that fits your real life.
Meet your otter coach — endurance nerd, plan-builder, and unrepentant lover of stickers. Connect your data and Flex reads every session, tracks your schedule, and shapes the plan around you.
Message Coach FlexFree for 7 days, then only £10/month · cancel anytimeBuilt on an extensive sports-science knowledge base, with input from qualified physiologists and sports scientists.
Coach Flexonline
AI coach
Today
Morning! Can you build me a plan for my 2k?
Based on your previous data, lactate tolerance looks like your key performance limiter. Want me to build a program around that?
Yes — go for it.
Done. Six weeks, on your calendar and synced to your watch.
I'll adapt it as you go, and check in before the hard sessions.