Control Mark vs my15c

Control Mark lets you create quick access shortcuts to your favorite websites. Add any website in the Control Mark or while browsing using the Add Page to Control Mark action. You can then place your favorite websites on your lockscreen as quick action button, as action for the Action Button, or as Control Center Widget. Features: - Add any webpage as Control Mark - Action Extension for the Share sheet to add a Control Mark directly from the browser - Choose an individual symbol for the Control Mark - Add Control Marks to your lockscreen as quick action, to the Control Center, or the Action Button

my15C is a faithful emulation of the classic 15C — the legendary RPN scientific programmable calculator, running the original Voyager-series microcode ROM, cycle-accurate. Built for engineers, scientists, and RPN enthusiasts who want the real thing in their pocket — not just a look-alike. FEATURES • Authentic 15C ROM emulation — same logic, same quirks as the original 1982 hardware • Full RPN entry with a 4-level stack • Complex number arithmetic • Matrix operations • Numerical integration (∫f(x)) • Root solving (SOLVE) • Full programmability — write, edit, and run your own programs • Continuous memory with iCloud sync across your devices • Authentic 7-segment LCD display and keyboard layout • Landscape-optimized for iPhone, iPad, and Mac