HeyBLU
Pro-Level Strike Calls for Every Field
The Umpire's Co-Pilot. The Coaches Training Tool.
Live strike zone tracking with instant AI calls. Click to watch video
Pro-level analytics for coaches & players.
Meet HeyBLU
Your smartphone becomes a precision strike zone tracker with real-time AI assistance.
Real-Time Audio Calls
HeyBLU delivers instant strike/ball calls via Bluetooth, boosting umpire confidence and precision.
Live Strike Zone Tracking
Advanced monocular depth technology maps every pitch's exact location in and around the zone.
Pro-Level Analytics
Coaches unlock premium pitch data, heatmaps, and player analytics previously only available to pros.
Built for Everyone in the Game
For Umpires
- ✓Real-time call assistance via Bluetooth
- ✓Build confidence faster with instant feedback
- ✓Objective performance data after each game
- ✓Training tool for new umpires
For Coaches
- ✓Premium pitch analytics and location data
- ✓Hitter zone analysis and swing decisions
- ✓Game-planning insights for opponents
- ✓Bullpen tracking and pitcher development
For Players
- ✓Visual strike zone feedback and heatmaps
- ✓Track your performance over time
- ✓Data-driven reports for recruiting
- ✓Prepare for ABS at higher levels
For Parents
- ✓Understand the actual strike zone
- ✓Objective data to review games
- ✓Support your player's development
- ✓End the sideline arguments with facts
For League Admins
- ✓Train and retain umpires more effectively
- ✓Reduce conflicts and improve game flow
- ✓Provide value-added services to teams
- ✓Recruit new umpires with better tools
Simple Setup, Powerful Results
Get started in minutes with just your smartphone.
Position Phone
Place behind or beside home plate
Connect Bluetooth
Pair with your earpiece (umpires)
Start Tracking
HeyBLU calls every pitch in real-time
Review Analytics
Access game data and insights instantly
The Challenge Facing Youth Baseball
80% of umpires quit within 2 years. Too little training, too much abuse.
Higher levels of baseball rely on data previously the domain of expensive equipment. HeyBLU levels the playing field.
Umpire Shortage
Youth umpires face constant pressure with minimal support, leading to massive turnover rates.
Limited Access to Data
Coaches and players lack the analytics tools available to pros, limiting development opportunities.
Inconsistent Zones
Without objective feedback, improving strike zone consistency and player development is nearly impossible.
Preparing for the Future of Baseball
MLB is rolling out Automated Ball/Strike (ABS) technology in 2026, where players can challenge calls and technology makes the final decision. HeyBLU brings ABS-level strike zone precision to youth and amateur baseball today, helping umpires train, coaches develop players, and athletes prepare for the data-driven game they'll face at higher levels.
Apply for Beta / Request TestFlight Access
HeyBLU is in active beta on iPhone (iOS). Submit this form with a valid email—we’ll send your TestFlight invitation to that address when you’re approved.
Apple TestFlight uses the same email you enter below.