Browse all apps

On-screen measurement tool with rulers in centimeters, millimeters, inches, and feet. Calibrate to your display.

by samyakrajbayar

Estimate your body fat percentage using the U.S. Navy method. Get fat mass, lean mass, and body composition category.

by Launch Arcade

Convert between units of length, weight, temperature, volume, and more.

by Launch Arcade

Compute mean, median, mode, standard deviation, and more from a data set.

by Launch Arcade

A fun interactive CAPTCHA challenge. Prove you are human by solving visual puzzles and see how CAPTCHA verification works.

by makeuseofcode

Calculate your 5 heart rate training zones using the Karvonen method. Optimize your workouts for fat burn, cardio, and peak performance.

by Launch Arcade

Run, jump, and dodge obstacles in this fast-paced HTML5 endless runner. How far can you go?

by straker

Gamified vision screening tool with interactive Snellen, astigmatism, and color blindness tests, featuring progress tracking and educational content.

by Lpuffy

Precision stopwatch with lap tracking and millisecond accuracy. Clean, distraction-free interface.

by Launch Arcade