Hi Judit. Thanks for your recommendation.
From the app's practical point of view, it's somewhat different than comparable features from other banks. Instead of just rounding the amount up and transfer that to a separate savings account, you use variable percentages.
I've checked the website and although it did explain what it does, it's unclear why the app needs quite some info from me and what will happen with all the acquired info.
It might be me, but I don't feel like giving, a for me unknown third party that isn't well known/established yet, access to my bank account. I'd rather wait and see if bunq adds this feature into the app itself. Thanks anyway