The app features large, easy-to-read keys for fast input and a permanent display of the user's expression. Results appear automatically as typing occurs, eliminating the need for an equals key.
by Andre Ponzo★ 4.84 ratingsProductivity$1.99Data updated 2026-09-12
Create and share polls with live audiences. Participants vote anonymously by selecting A, B, C, or D. Results appear in real-time on the host's device. No registration required. Polls expire after 30 minutes. Free to use.
Calculate with scientific precision and enhanced functions
Simulate the HP-45 scientific calculator with photo-realistic visuals and original LED or LCD display. Print calculations, animate keys with sound and feedback, and replicate the calculator's computation times.
Edit settings, manage tasks, control notifications
Analyze experimental data with statistical calculations. Input variables and their error ranges. Estimate uncertainties using propagation methods. Generate reports and export results in various formats.
Perform complex calculations with a scientific interface. Enter expressions in natural order. Simplify results with symbolic computation. Swipe to review previous calculations. Track history and reuse past entries.
Perform calculations with built-in formulas and expressions. Input daily rates and work schedules to compute annual income. Simplify complex equations with fewer button presses. Track multiple scenarios by adjusting variables.
Allows conversion between Hex, Decimal, Octal, Binary, and Dozenal values. Features include large buttons for accurate input, a large display for readability, and gesture-based copy/paste functionality.
Track nearby aircraft in real-time with live radar. Switch between radar view and a detailed local map. Personalize the display with customizable colors. View planes in a modern retro style.
Perform calculations with an intuitive interface. Input expressions directly, see the full equation, and edit it dynamically. Automatically recalculate results after changes. Access scientific functions like sine and cosine.
Calculate wind components, temperatures, altitudes, and airspeeds. Input runway number, wind direction, and speed. Determine headwind, tailwind, and crosswind values. Adjust for parallel runways based on magnetic heading.
Calculate bytes and convert between B, KB, MB, GB, and TB. Display results with appropriate thousands separators and decimal points based on language settings. Perform memory calculations, square roots, and percentage operations.
Perform calculations using a character-based interface. Input numbers and operators to solve math problems. Receive visual and audio feedback during computations. Interact with a stylized character to enhance the calculation experience.
Measure atmospheric in real time. Detect location automatically. Display current weather conditions and percentage. Search for cities and save favorite locations.