Shot timers are expensive. Like, $125 and up. I’ve tried to use a couple free smartphone apps but they sucked. Worthless. New from Shooter Technology Group is the RangeTech Shot Timer, which plugs into your phone and works with its own app. Not only does it have “more features than any other shot timer,” it’s only $30. Excellent. I’ve already charged one to RF’s card and will put it through its paces soon.