Windy

What it does

Wind, rain, temperature, waves, gusts and a dozen other layers rendered as a moving map, with the ability to switch between the ECMWF, GFS and ICON models and see where they disagree — which is the honest way to read a forecast four days out. Point at anywhere and you get a full meteogram. Sailors, pilots and paraglider pilots use it, which is why the data density is far above a consumer weather app.

Best for

• Deciding whether tomorrow's ride is on
• Watching a storm approach

Where it stops