I did a short trip downtown for a couple bar hoppers, and because of my amenities they were very thankful. The ride requestor happened to sit in the front seat, and when dropping them off he wanted to make sure I knew of his appreciation, so he intentionally made sure I watched as he tipped me well within the app. Lone behold!!!! This tip never showed up on my ride payment! It really makes my question if Uber keeps a portion of tips for themselves, when they claim all tips belong to the drivers. I especially wonder this due to the fact that I get way fewer Uber tips than Lyft through the apps.