You'll be able to control your Mantrailing training with this app designed for the Kocher method. You can also upload videos and GPX files of your trail runs, access numerous graphs to help you track your progress, and find a tips section with suggestions for your next training session.
This app is free and requires no subscription.
Available in Catalan, German, English, Basque, Spanish, French, Galician, Italian, and Valencian.