Bugi Vocha is a free utility app that simplifies the mundane task of entering vouchers (air-time top-up) through an on-device machine learning model that extracts digits from the image of a voucher and returns the 14 digits ready to dial or copy and share with a friend in another app. No internet connection is required and the entire process takes no longer than 5 seconds. Compared to the manual way of entering vouchers, which is very error-prone and increasingly challenging for people with vision impairments(especially elders), this method of entering vouchers is much easier and more convenient.