LISK is a decentralized blockchain application platform just as most technology companies like applestore , playstore which allow most developer to build and deploy applications.
With some differences the application control the likes of Apple's and Google own application store and LISK comes up with the aid of decentralized and distribution network to serve its customer best.
JavaScript based software development kit (SDK) is provided that the developer can make use of it to write most of the code he/she wishes to write.
SDK architectural allow the development of the blockchain applications, allowing the flexibility for developer to setout both the front end and back end of the platform.
There are several applications block chain based that make use of dApp to be created, hosted and operated on their own network .
The requirment of the of their application has all the control to create their own line with the help of the developer.
LSK Token is the virtual currencies of Lisk.