This is the "legacy" version of JRPN 16c. There is a newer version available that looks more like a real HP 16c machine. I recommend the new version, but keep the old version in the Play Store as there may be older phones that cannot run Flutter apps.

Programming calculator based on Emmet Gray's WRPN 16c, which simulates an HP 16c. I have modified Emmet's WRPN (with permission) to use rendered fonts for the keys. This makes them look good and crisp on high resolution displays.

I offer this sof