Is there any way to scan numbers by the camera in swift? I just found a bunch of barcode scanner libraries but they are not what I need. Please guide me
You can use the Vision framework to detect where text is, and the use an OCR framework to determine what the numbers are.
Ray Wenderlich has a tutorial on how to do this using the tesseract framework here: https://www.raywenderlich.com/163445/tesseract-ocr-tutorial-ios
There might also be some CoreML models trained for OCR that you could use if you search around.