The app is available on every platform out there, be it Apple or Android, tablet or phone. Free messages, calls and video calls to anywhere, so you can stay in touch with friends and family from all corners of the globe. The video- calling is the best function and overall it’s easy to use. Free iOS, Android, Blackberry, Nokia
Off on a Saga holiday? Then download this app before you go, and make sure your friends and family do too. If you connect to Wi-Fi – your hotel’s should be free – it will be completely free to send messages, videos and images to the folks back home.
WhatsApp uses the same internet data plan that you use for email and web browsing (make sure your ‘data roaming’s is turned off). Free for the first year, then 59p a year, iOS, Android, Windows Phone, Blackberry, Nokia
A people and relationship manager, this is more than just a digital address book. It aggregates your contacts from across all your social networks and then applies some big-data algorithms to help you make sense of it all. One feature is the ‘update’ tab, which highlights people celebrating a birthday, changing jobs or ones you’re losing touch with. Free, iOS, Android
This smart app doesn’t organize your contacts for you, but it does help you keep track of what those contacts have to say. Cloze compiles Twitter updates, Facebook posts, LinkedIn snippets, text messages, and emails from each of your contacts, then surfaces all of it into a master feed, organized by person.
Cloze even automatically figures out who the most important people in your network are and puts their information at the top of the feed. Free, iOS, Android