In WhatsApp you can preview it on the Lockscreen enable - at least on Android. So you see incoming messages despite lock screen and can answer it without...

Whatsapp: preview in the Lockscreen enable
By
David Amoyal
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Sunday, May 11, 2014
In WhatsApp you can preview it on the Lockscreen enable - at least on Android. So you see incoming messages despite lock screen and can an...