Closum is described as 'Email and SMS Platform built for Marketers and Developers' and is a Email Marketing service in the business & commerce category. There are more than 100 alternatives to Closum for a variety of platforms, including Web-based, SaaS, iPhone, Android and Windows apps. The best Closum alternative is Odoo, which is both free and Open Source. Other great apps like Closum are Mailchimp, HubSpot, Listmonk and UniStack.
This generation's digital mailman. 2way business class communication including SMS, Email, Fax, secure messages, messages with a digital signature. In operation since 1998 and with more than 1000 customers.
SMS Messaging, Simplified. Compliant, reliable and scalable SMS infrastructure for business-critical transactional and marketing messages.
Eagle Messaging offers voice messaging, text SMS service, Voicemail, IVR, chat, and more. Users can send 60 minutes of a recorded voice message. Cost-Effective, unlimited SMS service & all-inclusive price (Only $10) on a per-month subscription basis.
Sinch is a powerful voice and messaging SDK that lets you bring your apps to life with VoIP and WebRTC technology. Simplicity is at its core and you can get your first app up and running in a few lines of code and a matter of minutes.
High quality and cheap SMS gateway with coverage of 900+ operators worldwide. ? Worldwide coverage ? Free testing ? Great pricing ? Easy HTTP(s) API
Quickly and easily send voice and sms text messages to your customers, contacts, and subscribers in just a few clicks.
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