Lakebook is a web portal which allows you to view most of your Deeper data on any computer. Just go to https://maps.deepersonar.com/ and login (using the same username and password you use for the Deeper App).
If you made the scan in Standard Mode, you will see a pin on the map showing where you recorded the data. You can scroll through the scan like on the app.
If you made the scan using Boat Mode or Onshore GPS Mode, you will see both your underwater contour map and your scan. A boat / Deeper icon moves over your map as you scroll through the scan so you can see the exact point where the data was recorded.
You can share your maps and scans with your fishing buddies through Lakebook, or make print outs of your best spots. Plus maps can be downloaded in raw data format which you can then use with other mapping programs.