Beast provides assistance in weight selection.
If you choose an exercise in the “Workout of the Go” mode the Beast App will look into your recorded workouts and retrieve your exercise history.
These informations will be used to calculate the correct training ranges of intensity for each kind of Strength.
you can check how training ranges are calculated based on 1RM:
https://www.youtube.com/watch?v=YrfwINnYN9Y&list=PLGZ7f0LWAABqd4qT5gLSh5jcYQcmh5AVw&index=1
Once you have chosen your training goal, you will be prompted into the weight selection screen, where you can enter the desired weight.
On the right of the screen Beast will suggests you notable loads you could use by calculating specific training percentages out of your 1RM,
For example, if your goal is Max Strength and your 1RM is 155kg, Beast will give you some quick selection for 108.5kg (70%1RM), 124kg (80%1RM) and 139.5kg (90%1RM) which are in turn the minimum, the average and the maximum intensities to train max Strength.