Simple Form Builder - Customin is a free app developed by INAGAKI Hiroyuki Aerospace PE Office for Android 13.0 and above. This app is focused on digitizing forms for various purposes such as diaries, daily reports, checklists, exams, questionnaires, operating procedures, inventory management, and more. Customin provides over 100 kinds of command items that can be customized as per the user's requirements. The app also supports media files such as images, audio, and video, and provides geo-coordinates from GNSS. The app has a simple design and is highly intuitive to operate. Customin is beginner-friendly and easy to create forms in a few steps. The app provides 95 kinds of character sets and supports nine kinds of date-time formats, including right-to-left layout. Customin is a great app for anyone looking to create customized forms on their Android device.