We all know that, if you want to transfer files from computer to mobile phone or vice versa, you generally have to utilize a third-party chat tool or cloud storage service to send and receive them (provided that you have an Internet connection); The second option is to use a USB cable. However, most of us would not like to run around carrying with a bunch of cables. All in all, the file interchanging/transferring operation between a phone and a computer, or between two computers has always been a hassle.

As the successor of uCloud developed by MFScripts from United Kingdom, YetiShare is more popular and more powerful. Within a certain period of time, it had become the only strong performer, even the synonym of all existing file hosting scripts. With Yetishare, webmasters can build their own professional file hosting website to share files and earn money by advertising and/or selling their file hosting service.

When people need to synchronize, backup or frequently share files/data between a variety of devices (including computers and mobile phones), any traditional ways of file transfer are relatively inadequate. For example, a lot of cloud storage services like Dropbox have more and more and increasingly obvious limitations or restrictions. These include: files have to be uploaded to their servers for transfer, very limited disk space capacity, pretty high requirements on Internet connection speed and stability, limitation of transmission speed and bandwidth usage, very few acceptable file types, not high enough security, easy to be blocked by some countries, expensive cost, and so on. Thereupon, Resilio Sync (formerly called BTsync, full name BitTorrent Sync, now Sync for short) came out.

It was originally written in C++ by Christophe Dumez (from France) in 2006 when he was a student. Now it's maintained by worldwide volunteers on their spare time. qBittorrent is a free, open-source and cross-platform BitTorrent client (torrent file downloader) with nice UI based on Qt and built-in search engines.

eMule used to be the largest and most trusted free P2P file sharing client developed by Hendrik Breitkreuz from Germany. It was started in 2002 as an alternative of eDonkey2000 (AKA: eD2k) based on eDonkey Network, retained all advantages of eDonkey, added new functions and more friendly UI.