Motion Detection Ultimate by Arbel Solutions is a free Android app that uses the built-in camera of your phone to detect motion in the surrounding area using advanced motion detection algorithms. This app is perfect for keeping an eye on your home, pet, or office. Once it detects motion, it saves a picture or video of the motion.

The app is easy to use and can be accessed through a randomized QR code generated on the website. The app also uses the powerful openCV engine, which allows users to pinch to zoom and enables sound detection. Users can choose to save images with low or high resolution, from different alarm sounds, and choose auto-focus and motion detection sensitivity. Additionally, users can choose from four different motion detection algorithms: rectangles, contours, people, and faces.

Premium users have the added ability to record and upload videos to Google Drive. If you're looking for a reliable home security camera app, Motion Detection Ultimate is a great option.