The verdict
For a small team with little paid spend, pick Reddit Ads if your buyers talk about your category in communities you can name. A capped test costs little, and no automation is needed at that size.
Pick Revealbot if you already spend heavily on Meta, Google, TikTok or Snapchat, and checking dashboards costs a media buyer hours each week. It pays back only when your decisions follow clear logic that you can write as rules.
If you are early, do not buy automation to fix a channel you have not yet proved. Prove the channel first. Add rules when the spend is large enough that one missed day hurts.