Different values for energy usage shelly app and ha

Hi,

I installed 3 shellys to monitor the energy consumption of some devices.

Why is there such a difference from the values inside the shelly app and the measurements in ha?

Tiefkühltruhen:
17.01.: 745 Wh

Tauchpumpe:
17.01.: 435 Wh

And the values from HA:

image

image

BR
René