Instant Android Receipt Capture

I need a simple, lightweight Android app that lets any of my staff snap a photo of a purchase receipt the moment the transaction is complete. The flow should be: open the app, point the camera, tap once, and the image is automatically cropped for a clean edge-to-edge view of the receipt... (Budget: $30 - $250 NZD, Jobs: Android, Android App Development, Android SDK, Android Studio, App Design, Java, Kotlin, Mobile App Development, Mobile Development, Software Architecture)