Android Production Tracking App

I need an Android-only application that lets our on-site staff record and review the quantities we handle every day. For now the scope is limited to two data points—Finished products and Work in progress—so the interface can stay simple and fast for the people who actually use it on the shop floor... (Budget: $250 - $750 USD, Jobs: Android, Android App Development, Android Studio, API Development, Java, Mobile App Development, Mobile Development, PHP)