Clockwork SMS is a solution for automat send and receives SMS directly from your Apps. To use it you can sign up for free and you will have lots of opportunities. You can use many programming languages, like PHP, C# or Java, you can integrate it with your favorite services like WordPress, Shopify and Zendesk and you will have no boundaries. You can send texts to anyone in the world. After you send a SMS you will get a delivery receipt that tells you if everything was ok.
This is a secure and efficient service so you can use it with all the trust. If you want more information, you can find it on the app’s website.