Baseball umpire apps — two different searches
Search “baseball umpire app” and the App Store hands you Ball Strike Clicker, Umpire Indicator Pro, iUmpire Elite — solid tools for counting. If you wanted objective zone geometry, you landed in the wrong aisle.
That matters more than ever: teen umps (13-14 and up), parent volunteers, and coaches umping the other team’s game because the league is short-handed. They need zone help, not just a digital clicker.
Digital clicker
Balls, strikes, outs, inning, sometimes score. The umpire still judges every pitch.
HeyBLU zone engine
One iPhone tracks the ball in 3D, anchors a fixed strike zone to the plate, and speaks Ball or Strike out loud. Built for youth umps, volunteers, and coach-umpires who want a second opinion at the dish.
The plate umpire’s job is bigger than the zone — runners, balks, checked swings, game flow. HeyBLU goes deep on plate crossing in 3D so humans can own the rest. Leagues exploring in-game assist: games & umpires · info@heyblu.ai
More context: automated strike zone apps · bullpen setup
Objective 3D zone feedback from one iPhone.