School Bell is a simple and free app for Android that lets you customize the bell sound for your school or personal use. With this app, you can set the bell sound to ring at specific times and days, ensuring that you never miss a class or meeting. The app allows you to synchronize your device with the atomic clock, making sure that the bell sound is always accurate.

You can choose when the bell sound rings, and on which days of the week it should ring, except on Sundays. The app also lets you customize the sound of the bell, making it ideal for pranks or getting out of school early. School Bell is free of charge and does not include ads, making it a great option for students, teachers, and anyone who needs a reliable bell sound. However, an internet connection is required to sync your device with the atomic clock. If the sound differs from your school's bell, you can contact the developer by email to notify them.