Many people asked me to use OTT solutions like WhatsApp, Viber, LINE but I quickly uninstall those apps after a while because of two reasons. Firstly, there is no one-thing-fits-all solutions which means you will need to install a bunch of similar apps because different group of people use different service. God, that's tiresome and kills battery. There are decentralized protocols to fix this very issue but they are too good to be true I guess, even Google backed out from supporting XMPP by dropping their Google Talk service. I believe there are companies working on this front right now (or maybe I should?). They should make a solid server implementation AND clients using established standards, big plus if they stick some open source license in their code and publish them all. Provide good user experiences while allow user to control their data and federate between different system as needed. The second reason is backup. No services that I know of provide a way to conveni...
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