We would love to hear from you! Discuss on our forum or simply drop us a note at firstname.lastname@example.org whenever you need help, have suggestions, or just let us know how you like our apps.
12E, 11C, and 15E Calculators
1. I can hear the key click sound, but nothing shows up in screen. how to fix it?
Please restart the app to turn on the calculator. the calculator is automatically turned on/off when the app opens/closes.