Estar Digital Castro is an Android application developed by Estar Digital under the Travel & Navigation category. This free app offers a range of services for residents and visitors to the city of Castro-PR. With Estar Digital Castro, users can purchase credits, activate parking spots, and pay for any parking violations seamlessly.

The app's user interface is intuitive and easy to navigate, making it convenient for all users to access its services. Estar Digital Castro also allows users to manage their parking activities efficiently. The app sends notifications when parking time is close to expiring, and users can extend their parking time remotely. Overall, Estar Digital Castro is a useful travel companion for anyone traveling to or living in Castro-PR.