IndiGO SMS allows you to send or schedule bulk and customized text messages to multiple phone numbers without opening a browser. The app allows you to import contacts from a text file or to import from your phonebook within seconds. You can purchase SMS units from within the app and it allows you to view your message history.
You can set a unique name of the Message Sender for every message you send or use your official mobile number so your recipients will receive the message with the same name they stored your contact on their phones. At an amazingly cheap SMS rate.
Built for Nigeria.