Instashare is described as 'Transfer files the easy way, just drag & drop the file and we will handle the rest' and is an app in the File Sharing category. There are more than 50 alternatives to Instashare for a variety of platforms, including Online / Web-based, iPhone, Android, Windows and Mac. The best alternative is ShareDrop, which is both free and Open Source. Other great apps like Instashare are Send Anywhere (Freemium), WeTransfer (Freemium), Dukto R6 (Free, Open Source) and OpenDrop (Free, Open Source).
KwiqFlick solves the issues surrounding file transfer, where files have to be uploaded every time you want to send something. There is nothing more frustrating than having to go through the process again when you need to send the file again.