Works pretty good for viewing your recordings. Shows all three views for my camera and GPS settings as well a GPS data on a Google Maps display. Whil emost of the interface can be changed to English, there are still many prompts that appear in what I believe is Chinese, which is not proper for language support. I have no idea what those characters mean when trying to open a file from my Macbook and I can;t read most of the folder that I have pinned to finder as it converts those to Chinese as well. Not very helpful.

Did not work before this version for X4-S. Now it works great, plays files, shows both front and back cameras together, shows GPS and path, shows stamp: speed and whatever you set up. This app does not download files over wifi to Mac. My Mac cannot recognize cards formatted in the camera and camera won't connect directly to my Mac. Can download files over wifi to iPhone and iPad then sync them to my device and transfer to Mac to view.

It’s frustrating that you have to open every file one at a time. You should be able to select multiple files, and to be able to select the entire folder on the SD card.

Loaded my N5's videos from the SD card just fine. You have to select and load the files manually, it would be nicer if it auto populated from the selected card.Automatically plays all 4 channels (if that option is selected) of whichever file you're playing. Loads all gps/speed data and shows it on the map just liket the screenshots.So far I'm pretty happy with the app.