Thunder & Lightning vs Sleep Tracker, AutoSleep

Thunder & Lightning has (barely) one practical purpose: to measure your distance to a sound source. It works for thunder and lightning, fireworks, rocket launches, or other loud events visible from a (hopefully safe) distance away. Just press the Lightning button when you see the event, and Thunder when you hear it. Modern technology does the rest. To perform this trivial task even more accurately, you can enter the temperature of your surroundings to more precisely calculate the speed of sound. You can also choose between U.S./Imperial and metric measurements depending on your personal unit preferences. Should its intended purpose be insufficiently useful, this application can also be used as a reasonably precise (if redundant) stopwatch, a speed-of-sound calculator, a Fahrenheit/Celsius converter, or as an odometer if you happen to be traveling at precisely the speed of sound. Note: Use of application while operating supersonic aircraft is not recommended or approved.

SleepTracker is a simple and intuitive app designed to help you track your sleep patterns and improve your sleep quality. With SleepTracker, you can effortlessly record your sleep start and wake-up times, along with the number of awakenings during the night and the total sleep duration. On the homepage, you’ll find the most recent sleep record displayed, including your last sleep and wake-up times. Simply tap the “Add Record” button to log your sleep by inputting your sleep start time, wake-up time, and the number of times you woke up during the night. SleepTracker calculates and stores all your sleep data locally, ensuring your privacy. With a clean, user-friendly design, the app also provides a “History” section where you can view your past sleep records, including the sleep times, duration, and date. You can delete any record with a simple swipe. A privacy disclaimer is available in the top-right corner, explaining that no data is collected beyond local storage, and reference links are included for further transparency. SleepTracker is perfect for anyone looking to track their sleep habits and make improvements for a better night’s rest.