This app for the chronograph works great and I like everything it does, but since the latest iPhone update, it will no longer connect and said Bluetooth is not supported anymore. So until the ad gets updated, I will leave my review at three stars.

I was considering sending new DLX model back after wasting a couple of hours attempting to get it to work with current iphone and laptop OS versions. I bought Bluetooth Chronograph for the stats. Mostly failure. I got voice function to work on phone, but no stats. Then I tried my iPad with latest OS. It seemed to work. I can export data via email. The only thing left to test is backups. I hope Competition Electronics can get phone app working again. If iPad didn’t work I may have sent chrono back. Bluetooth needs to actually in work modern electronics in these modern times, not just lip service. I would work on fixing phone next. Remember there will be new OS’es across the board in Fall of 2022.

Works great for me. Setup was easy. I shoot outside in good weather so I have never experienced problems with reading shots as some indoor shooters might. Always runs fine using Bluetooth on my iPhone. I use it about once a week. It’s consistent and reliable. Absolutely LOVE the new feature where I can attach a picture to the string. Now I can have my groups in digital format in the same place as my data. Thank you for listening to user feedback!! This app just rocks. Thanks again!

Not sure why this app has not received better ratings. I just got my ProChrono DLX bluetooth version (obviously) and put 8 .25 caliber pellets through it without a glitch. Great readout with large numbers on both my phone and my Macbook Pro. The app is easy to navigate and gives you all the info any serious shooter needs regarding projectile velocities (fps) and foot pounds of energy (fpe). Lots of good stuff to know when modifiying any firearm or air rifle.