nymea is a plugin based IoT (Internet of Things) system.
It consists of nymea:core, nymea:app and nymea:cloud.
nymea:core works like a translator for devices, things and services
and allows them to interact. With the powerful rule engine you can connect any device available in the system and create individual scenes and behaviors for your environment.
nymea:app is a client application available for just about any platform/form factor out there. It allows to interact with nymea:core and nymea:cloud.
nymea:cloud is the cloud instance, which can connect nymea:app to nymea:core even when you're not in your home network and enables other features like push notifications being sent from nymea:core to the devices running nymea:app.