Filemail is a free iPhone application that allows you to send large files, making it the perfect solution to bypass email attachment limitations and other file transfer apps. The app is very easy to use and it does not require registration to send files up to 5 GB. You can transfer multiple files or folders by using the "Open In..." functionality, and send them to people using their email address or by sharing a download link. Moreover, the receivers do not need the app to download what you share. The files are available to download for 7 days and you will be notified when your recipient downloads shared files.

Filemail also offers paid accounts with advanced features, such as the ability to transfer a file of any size, unlimited transfer sessions with no bandwidth limits, and at least 1 TB of storage. The desktop app uses a custom protocol to send much faster than TCP-based browsers, FTP, and most file transfer apps. Additionally, businesses can get multi-user accounts, a customizable sub-domain, and advanced delivery tracking. The app also offers secure file sharing using anti-virus and password protection.