RunFlex is a flexible training tool for runners who want to build their own plans, track their progression — and bring their favorite AI along as a sparring partner.
Get notified at launchNo account required · Your data stays on your device
No rigid programs. No one-size-fits-all schedules. You decide how you train — RunFlex keeps it structured.
Create training plans that fit your life, your goals and your body — week by week, on your terms.
Intervals, tempo runs, long runs — define every step with time, distance, pace, heart-rate zone or effort.
Follow your training load and progress over time, and see how your goals are coming along.
Export your training as a ready-made briefing for ChatGPT, Claude or any AI — and get coaching that actually knows your training.
Most apps try to replace a coach with a black-box algorithm. RunFlex does the opposite: it prepares your data so you can have great coaching conversations with the AI you already use and trust.
One tap exports a clear, structured briefing about your plans, sessions and goals — ready to paste into any AI chat. Ask for feedback, adjust your week, plan your race build-up. You stay in charge.
From plan to feedback in three steps.
Build your training plan with structured workouts — as detailed or as simple as you like.
Follow your sessions and log how they went. Apple Watch support is on the way.
Export your training briefing to your favorite AI and fine-tune the road ahead.
