Nerolac - Saathi is a free mobile app developed by Kansai Nerolac Paints for Android devices. It is designed to assist painters with their daily tasks and streamline their workflow.

The app's main features include a paint calculator, which helps painters estimate the amount of paint required for a given surface area. It also provides a color visualizer tool that enables users to preview different paint colors on a wall before making a final decision. Additionally, the app includes a dealer locator feature that helps painters find the nearest Nerolac dealer.

Overall, Nerolac - Saathi is a useful tool for painters who are looking to simplify their work and improve their efficiency. The app's intuitive interface and practical features make it a valuable addition to any painter's toolkit.