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Историческую версию Ping Friends можно получить на Android
PingFriends позволяет отправить пустое сообщение на ваших WhatsApp или мессенджеров приложений
By the truth in whatsapp or messenger we can't send empty or blank message by default, that's why by using Ping Friends app you can send empty message to your friends and family just by clicking the whatsapp or messenger button and even send to other apps too.
Ping Friends is Material design app easy to use and completely free forever
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In any case, if you find or notice any Bugs/ Crashes please report it by sending us e-mail. We will respond or fix Bugs/ Crashes as soon as possible and if you have anything in mind (Feature/ Suggestions) please follow Google plus community
Google plus community link: https://goo.gl/nkPxAg