This is the summary table of Japanese language support of major APL interpreters.
| Interpreter | Japanese Support |
| APL2 | DOS and Solaris versions are not sold in Japanese Market. Other versions support Japanese. Check the next page to see how Japanese language is supported by APL2 [Japanese Language Support of APL2] |
| Dyalog APL | Japanese Language is not supported. GUI may support Japanese incidentally. |
| APL+ | Japanese Language is not supported. GUI may support Japanese incidentally. |
| SHARP APL | Japanese Language is not supported. GUI may support Japanese incidentally. |
| APL 68000 | Japanese Language is not supported. GUI may support Japanese incidentally. |
| J Software | Japanese Language is not supported officially. But J supports Japanese language without any special considerations. |