A 3D coach that shows every move and trains you from your own numbers. For every level, from your first boulder to your hardest project.
Free · in your browser now · iPhone app coming soon
Carl's advice, your daily exercise, your streak. Hold any widget and put what matters on top.
Tell Carl your gym days and the gear you have at home. He builds the weeks around them: climbing, fingers, pulling, core and mobility, each session dosed from your own tests.
Strength work next to climbing beat climbing alone across 11 trials.
Stien et al., 2023
Two hangboard sessions a week: +17% finger strength in 10 weeks.
Hermans et al., 2022
Missing a day doesn't break a habit. Keeping going does the work.
Lally et al., 2010
Follow your crew, high-five every session, and keep a friend streak with up to five friends. It grows on days you both train.
The free app is complete. New accounts get 14 days of Premium to try it; nothing renews by itself.
The iPhone app is coming soon. Until then Boldr runs from your browser: add it to your home screen and it opens full screen, like any app. Your account, streak and logs move with you to the App Store app. How to install
No. Most exercises need nothing but the floor, and Carl only suggests what you can do with the gear you have at home and at the gym. Hang and pull-up exercises need a board, bar or jug.
Boldr is for every level, from your first V0 to hard projects: the training scales with your own tests. What Carl suggests is never max effort and never on edges smaller than 20 mm. You can choose anything yourself; he tells you honestly when it's too early.
From published climbing and hangboard research, and every piece of advice names its source in the app. Where the evidence is thin, Carl says so. It is not medical advice.
Turn on injury mode and loaded exercises disappear from your suggestions. Every few days Carl checks in on how your fingers feel.
Anytime. Premium stays on until the end of the period you paid for, and the free part of Boldr keeps working.
340+ sessions trained with Carl so far. The iPhone app is coming soon; start now and your streak comes with you.