Pusher Beams - Send push notifications programmatically at scale
Enketo Smart Paper - Web forms evolved. Deploy and conduct surveys that work without a connection, on any device.
Mentioned By - Learn when your site is mentioned by other sites for free
Ona - Mobile Data Collection solution and application that empowers field teams. Ona provides a web and mobile app that allows the monitoring of real time field data both online and offline.
Now Push Notify - iOS does not support browser notifications today, but Now Push Notify makes this possible.
DHIS2 - Manage aggregate data with a flexible data model which has been field-tested for more than 15 years.