Cámbiala App is a free Android application developed by the Comisión de Regulación de Comunicaciones for users in Colombia. It helps users quickly adapt to the new phone number format that will be implemented in the country from September 1, 2021. With this app, users can easily update their contacts on their mobile devices to the new format.

The app provides all the necessary information and tools to communicate with any fixed or mobile phone within the country. It is user-friendly and ensures that the user's personal information is not sent to any server or leave their phone. Whether you need to call a local store or your aunt's house, this app is perfect for you.