Invoice123 is a free OCR and barcode scanner app for Android developed by Arlen Tung. This app is categorized under Utilities & Tools and provides users with a powerful tool that can recognize and extract text from scanned invoices and receipts.

The app uses Tesseract 3.0 and Tess-two OCR engine to extract the invoice number, while the barcode scanner is powered by the ZXing library. The app is user-friendly and easy to use, with a simple interface that allows users to take a picture of the invoice or scan the barcode and extract the necessary information. The extracted information can be exported in various formats, including CSV, Excel, and PDF, making it easy to manage and organize your invoices.

Overall, Invoice123 is a reliable and efficient OCR and barcode scanner app that can help you streamline your invoice management process. It is a must-have app for anyone who deals with invoices and receipts on a regular basis.