FCL is the programming language of an Android app called Forth Calculator. It is a Forth dialect with optional local variables, complex data structures, quotations and Java interoperability.
Besides all the high-level features, FCL supports the traditional Forth programming structures and uses the same compilation model (compile/interpret mode, dictionary, immediate words, etc.) as traditional Forth systems.
The syntax is a superset of the Forth language. In FCL there are literal syntax for creaing Lists `[ 1 2 3 ]`, Maps `#[ 'key' 'value ]#`, Quotations `{ dup + }` and Strings `"Hello World"`.