Like previous reviewers mentioned this app is mediocre at best. The recorded files used to display gps tracking info on a map below the video when played but but after recent update I just get a blank space instead. No map no go’s tracking no nada. It is not the units fault as the video shows embedded GPS info at the screen bottom so it is the software no doubt. This happened after recent update. I wish there was a way to go back to the previous version. To be fair the app is still useful to manipulate camera settings and review and download files if you get the WiFi to work. And here is my other gripe: the recent firmware update suppose to “improve” WiFi modem operations. Not for me. I set the WiFi to 2.4ghz and could not see it on my phone. Same for 5ghz “auto”. I was able to get the network to show up only after setting it to 5ghz and specific channel. And I had to do it in the camera itself as changing WiFi settings in the app would not result in WiFi network being visible in my phone. Note to developer: please resist the urge to update something that is actually working. Previous version was working for me flawlessly if you don’t mind the outdated windows 95 look of the app itself… hopefully next update will address the issues🤞🤞🤞

the camera is awesome but the app itself is pretty awful compared to other dash cams apps i've had. you're unable to play back your recordings in the app majority of the time. you have to download them to the app for them to play and half of the time it fails. it also doesn't save that the camera is yours, you have to wait for the wifi to connect to have it show yours. previous dash cams i've had will at least show you the different cameras you have and will tell you that they're offline. the only way i can pull my recordings it to put it into a computer but with that you can't see the GPS. also you can NOT see the live feed, it's just a black screen. correction, you can only view everything while on airplane mode. that's the only way you can view anything on the app. PLEASE change this!

This app is a complete piece of garbage. It’s the whole reason I returned the A139 Dashcam. It’s poorly designed and the Live Feed never worked. I needed to see the Live feed so I knew where to position the 3 camera in my truck, but it only ever showed a black box where the Live Feed should be. I know the cameras were working, as I could see the thumbnail image of the captured video. The playback of the video files is insanely slow. It took nearly 5 min for a 15sec video to start playing. This is a absolutely horrible time to wait to view a video. Downloading to the phone was 10x worse. It failed the first 2 time, then took 15min to download the 15sec video from the camera to my iPhone 12 Pro Max. It also keeps showing me images of a different dashcam than what I have. They need to take some time and make the app better, and more modern. The UI is trash. Why is there a big empty space below where the life feed should be. Use that space to show a live feed from each of the cameras instead of overlaying them onto the main cameras live feed (if you can even get that to work.) Instead of creating a hotspot to connect to, let the camera connect to the users home WiFi, and then we can access the feed & files from inside the home. Instead of having to sit in the vehicle for 15+ minutes while a video downloads.

I had a new Viofo A139 Pro 2-Channel professionally installed in my Mini Cooper a couple of days ago, and I can say the camera itself is a great piece of equipment. But then I downloaded the Viofo App so I could control the system, and download video with GPS/Speed data when needed. All I can say is the Viofo App is a piece of unadulterated garbage. First I had to go on-line and research as to why I couldn’t see the current recording in progress in the app. It showed a black screen but gave me the Time/Date/GPS data. Took a while but determined that you need to got into “Settings-Cellular”-then scroll down to the Viofo App and shut down cellular data. That will clean up the no video problem. (Several people listed turning on “Airplane Mode” which basically does the same thing.) After fixing that problem I am now researching why I can see the GPS map below the video – still haven’t been able to fix that problem and it doesn’t appear there is a fix. This would have been a 5-Star purchase but for the garbage software. Was planning on getting the same system for my wife’s Mini, but now I think I’ll research other camera systems that have a better app.