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Scientific calculator with full history log all calculations saved locally.
Fomrix Calc History is a scientific calculator that keeps a complete record of every calculation you perform. No account needed, no internet connection required — everything stays on your device. The extended numpad gives you access to trigonometric functions, logarithms, powers, roots, and common mathematical constants without switching screens or hunting through menus. Type an expression, hit equals, and the result appears instantly alongside a growing history log you can scroll through at any time. Every calculation is saved automatically. You can tap any past entry to copy the expression or result back into the input field and continue working from there. The history log makes it easy to retrace your steps or reuse intermediate results without retyping anything. The app includes a 4-digit PIN lock so your calculation history stays private. A short onboarding sequence on first launch walks you through the main features. The interface is clean and readable, with a decorative background that keeps the layout visually distinct without cluttering the numpad or display. All data is stored locally using device storage. There is no registration, no sync, no cloud, and no ads. The app works fully offline from the moment you install it. Designed for students, engineers, and anyone who needs a reliable calculator that remembers what they computed.