For building mass, multiple sets to failure of any weight above 30-40% of maximum possible (20-40 reps to failure, depending) will be good for you. However, it's only the more significant weights, 80% or so of maximum (6-10 reps to failure, depending) and higher, that build maximum single-effort strength.
The problems with calisthenics in general are:
>once someone is reasonably strong, it's hard to get very strong, because it's harder to load to a 6-10 rep max
>again once a person gets reasonably strong, it's hard to gain mass, because if you can do 60-80 reps or more then the difficulty must be increased. this isn't as big an issue as the strength one is
>people want to do idiotic meme-tier gymnastics-based movements pistols, anything with rings, etc that have more of a skills component than a strength component, and that holds back development or leads to injury really easy to fuck up doing ring dips
>while they're pretty much low-equipment, you still need some equipment to fully work the body to potential, such as a pullup bar or a bench for reverse hypers
If you stick to basics, lunges and stepups and jumps, pushups moving to single-arm or plyo pushups, v-ups, etc., and leave the gymnastics shit behind, they can be useful for size and some strength/work capacitiy.
https://www.tandfonline.com/doi/full/10.1080/17461391.2018.1450898
http://sci-hub.la/10.1080/17461391.2018.1450898