FullonSMS is a free online messaging service that allows users to send and receive text messages (SMS) and multimedia messages (MMS) to and from any mobile phone in India. This service is available through the FullonSMS website as well as through the FullonSMS mobile app. With the FullonSMS app, users can send messages to any mobile phone number in India, and receive messages from any mobile phone number in India. Users can also create and manage groups of contacts, and send group messages. Additionally, FullonSMS offers a range of services such as scheduling messages to be sent at a specific time, customizing messages with personal signatures and images, and setting up auto replies. FullonSMS also offers various promotional services such as bulk messaging, promotional campaigns, and referral programs.
Discontinued It seems that the application is no longer maintained: it is no longer on Google Play Store and the site http://desksms.appspot.com/ does not work. The APK can be downloaded from http://www.clockworkmod.com/ and the source code can be found at https://github.com/ClockworkMod/DeskSMS