Another app I had that got worse was camscanner - a scanner app that would take a picture of a document and create a .pdf out of it.
It was sold to tencent. The "privacy policy" - when you could access it (broken links) was written in broken english that basically said it did anything it wanted with your .pdf files.
The kinds of documents I would image to .pdf were extremely sensitive personal documents - think w2, documents with SSN, etc...
At least apple notes eventually added a version of camera to .pdf (though it wasn't obvious how to use it when it came out)