TestFlight - iOS beta testing on the fly.
DROPitTOme - Allows you to let others securely upload files to your Dropbox account.
TestFairy - Painless Beta Testing
dbinbox - dbinbox makes it easy to send files
TestApp.io - A platform that helps both mobile app developers and owners to easily share their apps with everyone to get feedback before reaching publicly to Google and App stores.
DriveUploader.com - Upload component for receiving large files on your websites or in products.