Yes. You can manually vary temperature setting on your thermostat with two +/- touch buttons, displaying the value set on the App. The programming function of the weekly thermostat, which is exclusively managed from the App, is not available though.
Warning: a manual variation on the Thermostat is kept until 23:59 of the same day. Then, Tyrrell Smart Home automatically retakes chrono function.
Is it possible to manually control temperature directly from the Thermostat?