The device is OK, but not very accurate, however the application can not be downloaded in HUngary. Therefore the device is not suitable for me
Works great, just tricky working with the software. First, if you go to the download link and get a "Secured Connection Failed" message, change the https to just http. When you install the apk on your phone, just allow "location", (and maybe "storage" if you plan to save your readings). No need to allow "make phone calls" or "recording". On the first page, it will ask you to log in. You don't need to make an account, just click on "Visitor" at the bottom.