Iphone app to send sensor measurements using MQTT Protocol and JSON

By | June 19, 2018

I am developing an application using Fiware Generic Enablers and I would like to make my iphone a sensor to send measurements to the IoT-Agent.

Is there any app currently on App Store that can read the values from the iphone sensors (any sensor) and send the measurements as a JSON message to an IP using MQTT as transport layer?

I've already search app store with many keywords but with no luck.