What are some alternatives?
When comparing SendHub and Apollo, you can also consider the following products
Twilio - Brings voice and messaging to your web and mobile applications.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Teamgantt - Intuitive project planning and collaboration. Beautiful Gantt charts, task-level communication, file sharing, resource management and more.
Bandwidth - Bandwidth offers SIP trunking, Emergency communications, and Voice & Messaging APIs.
Basecamp - A simple and elegant project management system.