SendSMS.global - SMS Marketing Platform
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Hubtype - Let your customers reach you through instant messaging apps
Open Loyalty for Startups - Open source stack for building customer focused products
Ionic - Ionic is a cross-platform mobile development stack for building performant apps on all platforms with open web technologies.
HelpCrunch - HelpCrunch Live Chat: Turn prospects into customers, drive sales and improve retention with a rich toolbox combining modern live chat, in-app messenger, email marketing, CRM and marketing automation.