Bone.io
GUN
PubNub
SocketCluster
Google Cloud Functions
Lightstreamer
Socket.io
SignalR
simperium
JBoss
Eclipse Jetty
GUN
Apache Tomcat
Pusher
Socket.io
Resin
simperiumBased on our record, simperium seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
That only works until the user has TWO offline devices and both making conflicting changes. A better solution would be to use something like Simperium (https://simperium.com/). Disclosure: I work for Automattic. - Source: Hacker News / almost 2 years ago
Actually SimpleNote does have an API: https://simperium.com/ It's what all the 3rd party SimpleNote apps use. However, they stopped accepting applications for the SimpleNote API key. Compare documentation from [2018] and [now]. You can still find the API key in the source code of other projects like [1]. I think the same API was given out to all 3rd party apps. (Or all the open source apps copied the same original... - Source: Hacker News / about 2 years ago
Simperium.com — Move data everywhere instantly and automatically, multi-platform, unlimited sending and storage of structured data, max. 2,500 users/month. - Source: dev.to / almost 3 years ago
GUN - Self-hosted Firebase.
JBoss - JBoss is Red Hats Java EE 5-compliant (soon Java EE 6-compliant) application server.
PubNub - PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.
Eclipse Jetty - Jetty is a highly scalable modular servlet engine and http server that natively supports many modern protocols like SPDY and WebSockets.
SocketCluster - An open, scalable realtime engine for Node.js
Google Cloud Functions - A serverless platform for building event-based microservices.