Teclas Grandes para teléfono is a free Android app that provides a large-size keyboard for people who have difficulty seeing or pressing the usual keys on their smartphone. This app is specifically designed to dial phone numbers and includes a function for colorblinds. The app can be accessed by pressing the options menu.

The app is developed by cpp and falls under the Lifestyle category, specifically Health & Fitness. It is a convenient tool for people who have visual impairments or have difficulty using the standard keyboard of their phone. However, it should be noted that the app only serves the purpose of dialing phone numbers.

Overall, Teclas Grandes para teléfono is a useful application that can make phone use easier for people with visual impairments. It is a free app that can be downloaded from the Google Play Store and includes an option for users to support the developer by inviting them for a coffee.