UPDATE *** 09Oct2023Further to our previous posts, the M4APP for SPEEDTRACKER has been working seemlessly on both iOS and Android devices!The MOST IMPORTANT thing to know is that ensure you are using the correct APP. Make sure that the SPEEDTRACKER version of the MACH4 APP is what you are using on you phone. If not, you may not be getting consistent readingsyou may not be getting any detectionsyour speedtracker won't connect well with the old APPStop using the Bulletseeker APPCHECK Your APP and KNOW YOUR SPEEDThanks for checking into the forum!UPDATE*** 11APRIL2023NEW Speedtracker APP is “Almost” ready to go. Yes, you read that correctly.We have some IT issues with the APP developers and are working quickly to address this.😁 GOOD NEWS - iOS is working on the new Speedtracker M4 App. There are no connectivity issues.🙂 LESS GOOD NEWS - Android is working on most phones. But some are not connecting. We are working on some of the other phones that are having issues. For example; Xiaomi is currently not connecting. Samsung is connecting.If you are having issues connecting, please reach out to email@example.com We will address each request.This is affecting a small number of customers, but we want to make you aware in case this is happening to you.IF you are using a BULLETSEEKER. Please use the M4 BULLETSEEKER APP with ANDROID devices.IF you are using have an APPLE product with iOS you can use the NEW SPEEDTRACKER M4 App or the previous M4 BULLETSEEKER APPFor SPEEDTRACKER, ONLY use the new M4 APP on both Android and iOS devices.The NEW M4 App for SPEEDTRACKER also works with iOS on BULLETSEEKER.As there are some development updates coming, please check back here, or leave your comments if you are having any issues.