Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...

Message Peeping Tom - Message Peeping Tom is an app by HSTAR, offers features that let you read your messages without giving the read report to the sender.

TextMe - TextMe is a free calls and messaging application at both local and international levels.

Seecrypt - Seecrypt app allows users to do secure voice and conference calls by using advanced encryption features so they can contact their friends, colleagues, and family members without any privacy issues.

Talkatone - Android App on. Google Play. Stop paying for cell minutes, texts & landlines; Turn your iPad or iPod touch into a phone; Call/Text even in areas with bad cell coverage; Call/Text when travelling without paying for expensive international minutes.

SMS Plus - SMS Plus app offers features that let you forward text messages through internet connection as well as through other social media platforms.