NerdCalc vs IntervalBeep

NerdCalc is a binary, hexadecimal and decimal calculator that displays all three number bases at the same time. With NerdCalc, you can quickly switch which base you are inputting and the result of your calculations is always updated for all three bases, no matter what the current input mode. NerdCalc supports both unsigned and 2’s complement, to allow for negative numbers, and can perform basic arithmetic and logic operations as well as bitwise shifting. Enjoy!

IntervalBeep is a clean, focused interval timer that beeps at set intervals so you can concentrate on what matters. Set a total time and an interval, IntervalBeep handles the rest. A clear beep sounds at every interval, a distinct sound marks the start, and a final tone lets you know you're done. No complicated setup, no clutter. SIMPLE TO USE - Set your total time (hours, minutes, seconds) - Set your interval - Press Start, that's it CUSTOMIZABLE SOUNDS - Choose from 12 musical notes for each sound - Configure start, interval, and end sounds separately - Set note duration (short, medium, long) - Up to 3 notes per sound - Preview sounds before you start WORKS IN THE BACKGROUND - Timer keeps running when your screen is locked - Audio signals play reliably in the background - Optional haptic feedback BEAUTIFUL DESIGN - Dual progress rings show total and interval time at a glance - Dark interface for comfortable use in any environment - Clean typography with color-coded counters - Responsive layout for iPhone and iPad USE IT FOR ANYTHING - Workout intervals and HIIT training - Cooking and baking - Study sessions and pomodoro technique - Meditation and breathing exercises - Presentations and public speaking practice - Music practice and rehearsals ONE-TIME PURCHASE No subscriptions. No ads. No in-app purchases. Pay once, use forever.