Drones are small aircraft. Before every flight, check the rules where you live: many countries ask you to register a drone, set a maximum height, and ban flying near airports, crowds, prisons and some parks. Some rules change at 250 g, others at 500 g, so read your national aviation page and keep the drone in sight.
Do not fly in rain or strong wind, keep spare batteries charged to about 60% for storage, and never fly over people. Apertra gives you the numbers; you are responsible for flying within the law.