A free app for Android, by OBTech.

OCR: Image to Text Extractor is a free, powerful, and easy-to-use app for converting, editing, and saving images to text. It allows users to extract texts from images, crop, edit, and save them in a variety of formats. The app also supports a wide range of languages.

This app can be used by both beginners and experts. Simply tap the screen to start the scan, and then tap the screen again to finish it. You can choose to save the scanned images to your device. You can also use the built-in editor to edit the text and to write it to a new file.