Can you post a screen grab of the CSV settings window during import?

i did all as it should be done in the manual

Well that looks like it should work, but the columns I used in that file were 5,6 and 7 (which did work fine).

hmm i imported and the lake behind the settings is still like that...

can it be that i cant do it with the trial version?
somehow it works now, i reinstalled the trial version and now i get a gps track

I have been looking for buy fish finder and am inclined to deeper smart sonar because its low budget and recommendation by a guide. It says that the GPS is bathymetric. What exactly this means. Am not sure but is it about scanning the bottom and sending to the company. So the data builds up by data collected by actual users and downloadable by anyone?

A GPS is not bathymetric, but a map can be bathymetric. :) And yes, with Deeper you can make a bathymetric map. Ie a map that shows contours that reflect depth.

Like most others it combined depth from the sonar and position from GPS.

The data is first stored in your phone, and you then choose what data to upload to Lakebook. Lakebook is a cloud-based "book" so you can view your data on any plattform like phone or PC etc. Your login to Lakebook is personal so the data can not be downloaded by anyone else. (You can however download it as CSV and then send it to anyone you want.)