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Communications Index
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The Top Communications Tools and Services Ranked By Stacks
Ranked by the number of tech stacks a tool is included in
1
Twilio SendGrid
7.27K
Stacks
Email Delivery. Simplified.
Transactional Email
Visit Website
2
Amazon SES
6.14K
Stacks
Bulk and transactional email-sending service.
Transactional Email
Visit Website
3
Twilio
5.99K
Stacks
Bring voice and messaging to your web and mobile applications.
Voice and SMS
Visit Website
4
Mailgun
5.44K
Stacks
The Email Service for Developers.
Transactional Email
Visit Website
5
Mandrill
4.4K
Stacks
Send transactional, triggered, and personalized email, then track results.
Transactional Email
Visit Website
6
Amazon SNS
1.01K
Stacks
Fully managed push messaging service
Mobile Push Messaging
Visit Website
7
Postmark
252
Stacks
Email delivery for web apps - done right.
Transactional Email
Visit Website
8
OneSignal
247
Stacks
A high volume push notification service for websites and mobile applications
Mobile Push Messaging
Visit Website
9
OneSignal
247
Stacks
A high volume push notification service for websites and mobile applications
Mobile Push Messaging
Visit Website
10
Telegram Bot API
237
Stacks
HTTP-based interface created for developers keen on building bots for Telegram
Chatbot Platforms & Tools
Visit Website
11
WhatsApp
199
Stacks
A freeware, cross-platform messaging and Voice over IP service
Phone
Visit Website
12
Dialogflow
182
Stacks
Give users new ways to interact with your product by building engaging voice and text-based conve...
Chatbot Platforms & Tools
Visit Website
13
Firebase Cloud Messaging
169
Stacks
A cross-platform messaging solution
Mobile Push Messaging
Visit Website
14
Mailjet
165
Stacks
Email delivery made easy
Transactional Email
Visit Website
15
Alexa
152
Stacks
A cloud-based voice service
Voice and SMS
Visit Website
16
Nexmo
146
Stacks
API for SMS, Voice and Phone Verification
Voice and SMS
Visit Website
17
Microsoft Bot Framework
140
Stacks
Connect intelligent bots that interact via text/sms, Skype, Slack, Office 365 mail and other popu...
Chatbot Platforms & Tools
Visit Website
18
Telegram API
131
Stacks
Build your own customized Telegram clients
Chat API
Visit Website
19
SparkPost
127
Stacks
Email Delivery and Analytics for Developers and Enterprises
Transactional Email
Visit Website
20
Messenger Platform
110
Stacks
Tools to help you build your bot and reach 900 million people around the world
Chatbot Platforms & Tools
Visit Website
21
IBM Watson
101
Stacks
A question-answering computer system capable of answering questions posed in natural language
Chatbot Platforms & Tools
Visit Website
22
Postfix
98
Stacks
A free and open-source mail transfer agent
Email Deliverability
Visit Website
23
SendBird
84
Stacks
A Complete Chat Platform, Messaging and Chat SDK and API
Communications SDK
Visit Website
24
Google Cloud Messaging
83
Stacks
Simple and reliable messaging to reach over a billion devices.
Mobile Push Messaging
Visit Website
25
Amazon Lex
74
Stacks
Build conversational voice and text interfaces, using the same deep learning technologies as Alexa
Chatbot Platforms & Tools
Visit Website
26
sendwithus
64
Stacks
Email automation for developers + testing and analytics for marketers.
Transactional Email
Visit Website
27
Api.ai
64
Stacks
Conversational interface platform for apps, devices, bots, and services.
Chatbot Platforms & Tools
Visit Website
28
Botkit
63
Stacks
Building Blocks for Building Bots
Chatbot Platforms & Tools
Visit Website
29
Nodemailer
61
Stacks
A module for Node.js applications to allow email sending
Transactional Email
Visit Website
30
Plivo
60
Stacks
API platform to build Voice & SMS Applications
Voice and SMS
Visit Website
31
Botpress
59
Stacks
Open-source conversational AI platform for enterprise automation
Chatbot Platforms & Tools
Visit Website
32
Chatfuel
58
Stacks
Create chatbots easily — no coding required
Chatbot Platforms & Tools
Visit Website
33
Urban Airship
57
Stacks
Improve customer engagement with push notifications, location-based marketing and analytics.
Mobile Push Messaging
Visit Website
34
Aircall
56
Stacks
The phone system for modern business
Phone
Visit Website
35
Braze
52
Stacks
Customer engagement platform
Engagement/Lifecycle Marketing
Visit Website
36
RingCentral
52
Stacks
Cloud business phone systems that work the way you do.
Phone
Visit Website
37
Apple Push Notification Ser...
51
Stacks
A platform notification service
Web Push Notifications
Visit Website
38
OpenTok
48
Stacks
Build live interactive video, voice and messaging into your web and mobile apps
Communications SDK
Visit Website
39
OpenTok
48
Stacks
Build live interactive video, voice and messaging into your web and mobile apps
Communications SDK
Visit Website
40
Amazon Polly
46
Stacks
Text to Speech in 47 Voices and 24 Languages
Text-To-Speech as a Service
Visit Website
41
Twilio API for WhatsApp
45
Stacks
Reach users on the world’s most popular messaging app through one streamlined API, officially sup...
Communications SDK
Visit Website
42
MessageBird
39
Stacks
Making business communications feel as natural as communicating with friends.
Voice and SMS
Visit Website
43
Postscript
38
Stacks
Mailchimp for SMS
Voice and SMS
Visit Website
44
Agora
38
Stacks
The Real-Time Engagement platform for devs to integrate voice & video chat, interactive live stre...
Voice and SMS
Visit Website
45
Agora
38
Stacks
The Real-Time Engagement platform for devs to integrate voice & video chat, interactive live stre...
Voice and SMS
Visit Website
46
Dovecot
37
Stacks
An open source IMAP and POP3 email server
Email Deliverability
Visit Website
47
Amazon Pinpoint
36
Stacks
Targeted Push Notifications for Mobile Apps
Mobile Push Messaging
Visit Website
48
Azure Bot Service
34
Stacks
Intelligent, serverless bot service that scales on demand
Chatbot Platforms & Tools
Visit Website
49
3CX
29
Stacks
Your PBX, Your Way: On-premise or in the Cloud
Phone
Visit Website
50
WeChat API
29
Stacks
Integrate your killer app onto WeChat's advanced mobile communication platform
Chat API
Visit Website
The Top Communications Tools and Services Ranked By Jobs
Ranked by the number of active job listings a tool is included in
1
LINE
108
Jobs
Get engaged in interactive conversations with LINE users
Communications SDK
Visit Website
Visit Website
2
Bandwidth
3
Jobs
Cloud-ready voice, messaging, and 9-1-1 built for the enterprise
Voice and SMS
Visit Website
Visit Website
3
Twilio
5
Jobs
Bring voice and messaging to your web and mobile applications.
Voice and SMS
Visit Website
Visit Website
4
Courier
2
Jobs
Deliver your notifications to the best channel for each user
Web Push Notifications
Visit Website
Visit Website
5
WhatsApp
4
Jobs
A freeware, cross-platform messaging and Voice over IP service
Phone
Visit Website
Visit Website
6
MessageBird
3
Jobs
Making business communications feel as natural as communicating with friends.
Voice and SMS
Visit Website
Visit Website
7
Aircall
3
Jobs
The phone system for modern business
Phone
Visit Website
Visit Website
8
Alexa
Jobs
A cloud-based voice service
Voice and SMS
Visit Website
Visit Website
9
OpenTok
Jobs
Build live interactive video, voice and messaging into your web and mobile apps
Communications SDK
Visit Website
Visit Website
10
Servo
1
Jobs
Servo is an open source conversational AI platform,
Chatbot Platforms & Tools
Visit Website
Visit Website
11
OpenTok
Jobs
Build live interactive video, voice and messaging into your web and mobile apps
Communications SDK
Visit Website
Visit Website
12
SparkPost
2
Jobs
Email Delivery and Analytics for Developers and Enterprises
Transactional Email
Visit Website
Visit Website
13
Dialpad
2
Jobs
A pure-cloud business communication platform
Phone
Visit Website
Visit Website
14
Viber
Jobs
Free and secure calls and messages
Phone
Visit Website
Visit Website
15
Deepgram
Jobs
Scalable Speech API for Businesses
Speech Recognition as a Service
Visit Website
Visit Website
16
Amazon SNS
1
Jobs
Fully managed push messaging service
Mobile Push Messaging
Visit Website
Visit Website
17
Mandrill
Jobs
Send transactional, triggered, and personalized email, then track results.
Transactional Email
Visit Website
Visit Website
18
RingCentral
1
Jobs
Cloud business phone systems that work the way you do.
Phone
Visit Website
Visit Website
19
Outspoken
1
Jobs
SMS, MMS, Transcoding and User Lookup API
Voice and SMS
Visit Website
Visit Website