A free program for Android, by Piksoft Inc..

TurboScan is the ultimate app for scanning and managing your documents, receipts, notes, whiteboards, photos, or other everyday text. You can use TurboScan to turn your phone into a powerful and multifunctional scanner and file manager. With this app, you can quickly scan and save your documents as PDFs or JPEGs, and you can also send them through email, social media, or a messenger app.

This free app uses advanced, fast algorithms to accurately detect document edges, correct perspective, eliminate shadows, and set a perfect contrast between white and black. It can be used for scanning and saving documents, receipts, notes, whiteboards, photos, or other everyday text.