When comparing N2O vs Actix, the Slant community recommends Actix for most people. In the question“What are the best backend web frameworks?” Actix is ranked 22nd while N2O is ranked 29th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Fast binary data
Pro Binary encoding and protocols
Here is a list of types of endpoints which are supported by EMQ and accesible to N2O apps: WebSockets, MQTT, MQTT-SN, TCP, UDP, CoAP. Normal use of N2O as a Web Framework or a Web Application Server is through WebSockets, but for IoT and MQTT applications it could be served through UDP or SCTP protocols providing application level message delivery consistency.
Pro Blazingly fast
Pro Feature-rich
Actix provides a lot of features out of box. WebSockets, HTTP/2, pipelining etc
Pro Type-safe
Forget about stringly typed objects, from request to response, everything has types
Pro Extensible
Easily create your own libraries that any Actix application can use
Cons
Con Unfriendly developer community
Developers are often rude and unfriendly to users.
Con Bad documentation
It has bad documentation, which leaves out crucial steps, making it hard to learn.