Here’s a list of some of the BASIC expansions, compilers and interpreters available for Apple II computers.
Expansions:
- Beagle BASIC: +8 New commands (Link)
Compilers and Interpreters:
- Apex (128K): Compiled language, and hybrid between APL & BASIC (Link, Link)
- ZBASIC: Compiled BASIC language, includes IDE. (Link)
- The Beagle Compiler: BASIC to P-code compiler(Link)
- Einstein Compiler: BASIC compiler (Link)
Note: For those expansions, interpreters or compilers that allow to include inline assembly on the BASIC program, such feature should not be used as it collides with the competition’s rules.