Megathlon is the best tool for preparing for a triathlon or a duathlon. With this app, you can create your own triathlon training program and track your progress.

You can choose from one of the available training programs for triathlon or duathlon, depending on your goals and goals. Each program contains detailed descriptions of the exercises, with the number of sets, the sets/reps, and the rest intervals. 

All the programs include a preview option so you can see the exercises for the current week. You can add, delete, copy and move the exercises within a week.

This app has a built-in timer to keep track of your workout duration. You can set a timer to start the exercise, and it will automatically record the duration and the rest intervals. You can also add a description of the exercise and set a weight for it.

The app also includes a heart rate zones calculator, which will help you determine the intensity of your exercise. It will calculate your heart rate zones based on the intensity of the exercise and the duration you have been exercising.

The app includes a plan exporter, which will allow you to export the current week's plan to a text file. You can use the exported plan to start preparing for your triathlon or duathlon.

The app includes a running shoes tracker, which will help you keep track of your running shoes and the distance you have covered. It will also help you track your progress for each distance.