•Underdog Sports (#1) has taken the top spot from Polymarket this week, which looks like a significant shift for the daily fantasy sports category, with users likely responding to its simplified contest structure as the NFL season gains momentum.
•The NFL app's dramatic 25-spot jump is probably because of the regular season kickoff, a pattern seen every September where dedicated team apps surge as fans check stats and watch condensed games on mobile.
•ESPN: Live Sports & Scores (#5) spent two days at number one recently, showing its consistent strength as a hub, though it seems to be settling back into the upper tier as more specialized betting apps climb.
•New arrivals like FOX Sports and CFBPlayoff entering the rankings suggest a seasonal focus, with college football's start driving installs for official broadcast and playoff tracking tools.