An REPL called “CL REPL” is available in the Google Play Store. But itself is not for developing standalone Android apps, unless those apps are Common Lisp source code files only.
However, “CL REPL” itself is an open source GUI app using Common Lisp and Qt. So by learning and using its source, in principle, we can create other Android apps using Common Lisp with Qt.
The library that “CL REPL” uses is EQL5-Android.
— Me@2018-11-23 04:07:54 PM
2018.11.23 Friday (c) All rights reserved by ACHK