Top 4 Open-Source Alternatives to Sales Sling

The top open-source alternatives to Sales Sling are Signal, Twilio, and Telegram. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Signal Landing Page
1

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions
Twilio Landing Page
2

Twilio

Brings voice and messaging to your web and mobile applications.
Pricing:
- Open Source
#Communication #Cloud Communications #Customer Engagement
Telegram Landing Page
3

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Pricing:
- Open Source
#Communication #Messaging #Instant Messaging 129 social mentions
CloudTalk Landing Page
4

CloudTalk

Work locally, grow globally
Pricing:
- Open Source
- Paid
- Free Trial
- $25.0 / Monthly
#Communication #Enterprise Communication #Call Center Software