As another commenter here has mentioned, in the case of LoL particularly, Riot games has banned similar apps and tools in the past. I can also see it causing "i

As another commenter here has mentioned, in the case of LoL particularly, Riot games has banned similar apps and tools in the past. I can also see it causing "integrity of competition" issues with people, although you can certainly get live streamed coaching with professional coaching, that certainly isn't as scalable as simply running a coaching app alongside your client.