[OS X TeX] Best iPad PDF viewer for math?

[Richard Seguin]

I finally found a viewer that I like:

https://apps.apple.com/us/app/foxit-pdf-reader-mobile/id507040546#?platform=ipad

I read somewhere that this is the reader most like Skim, although a mobile app is just not going to look like Skim. The free version of Foxit PDF Reader Mobile has a generous and nice set of features, such as searching text and automatically bookmarking table of contents, and more can be added with an inexpensive subscription. Unlike other viewers, the free version of this did not  immediately begin nagging me to, for example, visit the Google app store (???!), upgrade to a paid subscription version, or sign in to a choice of Apple, Facebook, or Adobe with a two factor sign-in.

Richard Séguin