dweet.io vs lelylan: What are the differences?

Developers describe dweet.io as "Ridiculously simple messaging (and alerts) for the Internet of Things". dweet.io is simple publishing and subscribing for machines, sensors, devices, robots, and gadgets (we just call them things). We call published messages ‘dweets’. It’s helpful to think of dweet.io as a Twitter for things, in fact. It's machine-to-machine (M2M) for the Internet Of Things (IOT) the way it was meant to be. On the other hand, lelylan is detailed as "Open Source Lightweight Microservices Architecture for the Internet of Things". The Lelylan platform is both hardware-agnostic and platform-agnostic. This means that you can connect any hardware, from the ESP8266 to the most professional embedded hardware solution and everything in between - and it can run on any public cloud, your own private datacenter, or even in a hybrid environment, whether virtualized or bare metal.

dweet.io and lelylan can be categorized as "Internet of Things Services" tools.

lelylan is an open source tool with 1.39K GitHub stars and 88 GitHub forks. Here's a link to lelylan's open source repository on GitHub.