Realtime software
Software and SaaS packages to make developing real-time, live-sync, apps simpler.
Software
DeepStream
Available at https://deepstream.io/.
- allows multiple clients to share a JSON object, edits to the object are synced to all clients interested on the same object;
- includes support for Request/Reply and PubSub API’s;
- client support is currently (July 2016) limited. There is a JavaScript client that you can use on Node and Browser environments, but no Go or Perl client;
- can use multiple servers with a messaging system to keep them in sync;
- As far as I can tell, free to use.
Horizon
Available at https://horizon.io/.
- Written by the same team of RethinkDB;
- open-source.
SaaS
Baasil
Available at https://baasil.io/.
- source code is mostly available, it is based on Socket Cluster;
- very cost-effective.
Pusher
Available at https://pusher.com/.
Pubnub
Available at https://www.pubnub.com/.