I’m not confident in the privacy and security of Blur apps. I use them but try to keep in mind that I don’t know who has access to the original photo. If I’m blurring out my social security number, for example, on a screenshot I took of some paperwork, can the app creator access the original photo?
Just a general ‘heads up’ when using such apps. I do not know the answer. I did just download the app and I’m hopeful it works as advertised.