What's the best Android app for earning rewards by scanning shopping receipts?

CoinOut is an Android application that simplifies the process of earning rewards from everyday shopping by scanning receipts. Users can upload photos of receipts from any store, regardless of purchase amount, to earn points that accumulate over time. These points can be redeemed for gift cards to popular retailers such as Amazon, providing a straightforward way to offset shopping costs. The app includes a daily check-in feature, allowing users to earn points even without scanning receipts, which is ideal for those who may not shop frequently. Real-world scenarios include busy parents scanning grocery receipts after a supermarket run or office workers submitting lunch purchase receipts during breaks. Reviews indicate that the app is generally easy to navigate, with many users appreciating the no-minimum-spend policy. However, some limitations exist, such as occasional glitches during receipt uploads and a tiered points system where initial receipts may not yield full rewards. Additionally, in-app games for bonus points have been reported to malfunction at times, disrupting the earning potential. Despite these minor issues, CoinOut remains a practical choice for individuals seeking to monetize routine purchases without significant effort.