Here are the resources I've been using as guidelines for changes I'm making to my app:
.
www.process.st/gdpr-complianc…
.
ico.org.uk/for-organisations/…
.
ico.org.uk/for-organisations/…
.
www.whitecase.com/publication…
.
.
I've been finding it especially helpful to read posts from other major apps describing steps they're taking to ready for GDPR.
.
For example:
.
postmarkapp.com/blog/gdpr-get…
.
www.jitbit.com/helpdesk/gdpr/
.
docs.intercom.com/pricing-pri…
.
recapture.io/gdpr
.
www.christophengelhardt.com/a…