Hi Christophe,
Thanks for contacting us and we are happy to hear you like our Sprite controller. Yes notification is available and you need to enable Netro App notification in your smart phone settings. Currently we only have notification for users about device is offline because we want to keep the app as simple as possible and do not want to spam user with too much notifications.
Thanks,
Netro Support
We have implemented the app notification when the device starts to water. Currently it is ready for beta testing. Please let us know if you are interested in trying this feature and if yes we will enable it internally for you. In the next app release there will be a public on/off control for this feature.
Thanks,
Netro Support