"Free"
Top
Communications
tools & services voted for "Free" by the StackShare community
Communications
Twilio SendGrid
Transactional Email
Stacks
10.5K
I Use This
190
Easy setup
137
Cheap and simple
107
Easy email integration!
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Mandrill
Transactional Email
Stacks
4.41K
I Use This
189
Simple installation
141
Great api
123
Generous free allowance to get you ...
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OneSignal
Mobile Push Messaging
Stacks
348
I Use This
28
Free of cost
22
More parametrable
17
Simple and Easy To Use. Well Docume...
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OneSignal
Mobile Push Messaging
Stacks
348
I Use This
28
Free of cost
22
More parametrable
17
Simple and Easy To Use. Well Docume...
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WhatsApp
Phone
Stacks
407
I Use This
14
Free
3
Easy to carry on with contact
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Firebase Cloud Mess...
Mobile Push Messaging
Stacks
269
I Use This
18
Free
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Google Cloud Messaging
Mobile Push Messaging
Stacks
91
I Use This
9
Free
6
Scalable
4
Easy setup
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Pusher Mobile Push ...
Mobile Push Messaging
Stacks
25
I Use This
7
Free
2
Easy setup
1
Scalable
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Viber
Phone
Stacks
18
I Use This
5
Free
2
Easy to use
1
Free calls and chats
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