Slider is probably the better UI mechanism to get from one point to another quickly, in this case from 1 clap to 50 claps. However, where this implementation falls short is what happens to the claps slider after a user is finished interacting with it. The “reset” of the position back to it’s lower right hand position might indicate to the user that their claps might not have been registered. I think there’s a persistent nature to sliders and having it reset back to the “zero” position feels like you didn’t actually move it to that “50 claps” position. $0.02.