Testolo is an application that helps users answer any test, quiz, or exam question. Users can use the built-in camera to take a photo, crop the image to cover the test question, and then receive information about the correct answer. According to our research, the application can identify 7 correct answers out of 10 questions in English environments. The application uses GPT and Google ML algorithms. Users can download the application for free and purchase more questions through in-app purchases at the most affordable prices (1000 questions, 100 questions, or 10 questions).