AirDrop is described as 'With AirDrop, you can wirelessly send documents, photos, videos, websites, map locations, and more to a nearby iPhone, iPad, iPod touch, or Mac' and is an app in the file sharing category. There are more than 100 alternatives to AirDrop for a variety of platforms, including Web-based, Android, Windows, Mac and Linux apps. The best AirDrop alternative is LocalSend, which is both free and Open Source. Other great apps like AirDrop are Syncthing, KDE Connect, OnionShare and Blip.