Railbird Pool vs QMD4 Stroke Trainer/Analyzer

Railbird is performance tracking for pool. Set your phone up at the table, hit record, and Railbird automatically tracks your game — makes, misses, runs, players, and more. Stop guessing and start measuring. TRACK YOUR GAME AUTOMATICALLY • Every make and miss logged for you — no manual scorekeeping • Run tracking: longest runs, streaks, and trends over time • Player detection: multiplayer sessions with per-player stats • Full session history with video and stats TRAIN WITH PURPOSE • Structured drills with per-drill leaderboards • The X-Drill Challenge: see where you rank • Progress tracking that shows your game improving COMPETE WITH FRIENDS • Follow other players • Monthly leaderboards among the players you follow FREE TO USE Record and analyze your game free — no trial clock. Railbird Pro (Monthly or Yearly — save 25% with annual) unlocks the full experience. Also on the web: record with your webcam or OBS and upload video at railbird.ai. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://railbird.ai/privacy

The QMD4 Billiards Stroke Trainer/Analyzer is an innovative billiards training aid designed to help you find and fix the flaws in your pool stroke. A new way to practice, let QMD4's precision and accuracy take your game to the next level. The highly sensitive QMD4 Bluetooth enabled device is attached to your pool cue and transmits detailed 3-D information about your stroke to the free QMD4 app on your iPhone or iPad. QMD4 features automatic shot recording/playback with a stroke velocity chart and cue tip view. Instant, audible 'as you stroke' alerts pinpoint problem areas in your stroke. Comprehensive metrics are generated for each practice shot allowing in-depth analysis to identify flaws, tendencies and to compare your progress with prior practice sessions. The QMD4 is the forth generation of QMD Stroke Trainers with improved hardware and software features. The QMD4 device may be ordered from www.theQMD.com.