Big Yellow Calculator

Tired of rigid, one-size-fits-all calculator interfaces? CustomCalc redefines your calculating experience with two powerful core features tailored for personalized and efficient math work.

Fully Customizable Button Layout

Take full control of your calculator interface! Add, delete, rearrange, and hide any function buttons based on your daily needs. Whether you want a minimal layout for simple daily arithmetic or a customized panel for advanced scientific calculations, you can design it in one tap. Drag-and-drop operation makes layout adjustment intuitive and effortless, eliminating useless buttons and keeping your most-used functions front and center.

Save & Recall Intermediate Results

Solve complex multi-step calculations effortlessly! Store any intermediate values during your computing process with one click. Access, edit, or reuse saved results anytime without rewriting formulas or retyping numbers. Perfect for accounting, engineering calculations, student homework, and daily multi-step math tasks, greatly reducing calculation errors and saving your time.

Designed for iOS devices, CustomCalc delivers smooth, ad-free calculating performance. Customize your layout, organize your data, and calculate smarter today!