Unwanted iFrame below my page

[rem.berthier]

Hi there,

I have an unwanted iframe below my page, just before the </body> (size of 300x150, on the left of screen). It’s kind of annoying, and no idea where it comes from.

Any idea why this iframe is here ? Could it be because of the icon “Built on Bubble” (free plan) ?

Thanks for your help!