QKSMS - QKSMS is a beautiful communication app that offers magical texting experience.

Twinme - Twinme – Private Messenger is a free, secure, instant, and high-definition messaging app that protects your privacy along with giving you full control over each of your relationships and contents.

Quik - Download anything on your iOS device, right from Safari

Textra - Textra is a seriously beautiful, feature rich SMS and MMS app.

Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.

Material Messaging - Material Messaging is a beautiful communication app that lets you send and receive SMS and MMS messages using the intuitive interface while giving you complete control over every aspect of your messaging experience.