DudhVyapar is a free, Android app designed specifically for dairy owners, milk collection centers, and local milk vendors in India. This offline-friendly application allows users to digitize their dairy operations, making milk transactions smoother and more efficient. Key features include easy milk collection, accurate billing, and robust daily record-keeping functionalities, which are crucial for managing a dairy business effectively.

The app supports morning and evening shift entries, automatic price calculations, and instant billing with one-click thermal printing. DudhVyapar also provides farmer-wise and customer-wise summaries, customizable reports in PDF format, and multi-language support for ease of use. Additionally, its offline functionality ensures uninterrupted service in rural areas, while WhatsApp and SMS integration enhances communication and transparency with customers.