Columba is a free autoresponder, the app autoresponds to SMS and calls when you are unable to do so. The app not only offers feature to text auto reply but is also a text message reader. Imagine you are in a meeting, or driving a car, at a cinema/doctor's chamber/music concert... how often have you prayed that you don't receive a call, even when you answer a call your response is incoherent (usually in whispers or drowned by traffic noise), even if it is audible, in our anxiety to end the call the message is abrupt leaving the caller totally confused. Now, with Columba Free Autoresponder on your phone, any incoming call that cannot be answered by you will be automatically disconnected and an autoreply in form of a text SMS is sent to the caller explaining why you were unable to answer the call and when you intend to get back.