Full emulation of the classic and ground breaking HP-67 calculator produced back in the early 70's. An amazing device developed by Hewlett Packard which is still very useful. Note: newer Galaxy 8 Plus have "full screen" modes that you can change in Settings/Screen/Full Screen that can be changed on per-app basis.
Download the free .apk file of HP67 Calculator 2.5 and have a look at users' reviews on Droid Informer. This installation package takes up 774 KB of disk space and it runs on Android devices 5.1 and above. The security report shows that the app is completely safe. Mike O'Shea is the developer of this application that belongs to the Productivity category.
The tool was downloaded and installed by over 50K users and its most recent stable update was on Aug 29, 2019. According to the latest data, HP67 Calculator is rated 3.6 on Google Play. There are advertisements in the app.
The statistics show that this application is popular mostly among Samsung and Sony users.