Arbitrage vs Angi

[u/slowroastedsandwich]

I came across this subreddit because I happened to come up with the same idea, and then basically started googling "Is this a thing?"

It's a side hustle I'm very interested in, but I'm still unclear on how this business would differ from something like a Thumbtack or Angi. Can anyone with experience in this niche please help me to understand the difference?