FlightSide tells you which side of the plane gets the sun on your flight. Here's how to read that answer, why the sun crosses the cabin the way it does, and what FlightSide can and can't know.
One thing at a time, start to finish.
Enter your route and departure time, and see which side of the plane to pick.
Read your recommendation, choose sun or shade, and know what to do when it's close.
Install it before you travel, and check your seat with no signal.
Send your flight to whoever you're traveling with, as text, a boarding pass or a link.
How it compares, and what else is worth knowing.