Here is the blog post Richard mentioned: https://litmus.com/blog/how-to-create-an-add-to-calendar-link-for-your-emails
Hope that helps. :)
Bettina from Litmus here! :) We've already noticed that the numbers look funky. We're investigating!
I'll keep you posted.
This preview text hack might be exactly what you're looking for:
Yes, something seemed to have happened on Gmail's side yesterday. Learn more here: https://litmus.com/community/discussions/7560-old-gmail-completely-broken-as-of-this-morning
Do you think FTP data feeds could help with what you're trying to do?
This definitely is the right place to ask other email geeks how they integrate their EA data, but if you have product specific questions for the Litmus team you might want to email email@example.com. Our support team doesn't monitor the Community, so sending them a quick email is the fastest way to get a response. :)
Hope that helps!
This seems to be a great resource for iOS device market share insights and data on OS adoption: https://david-smith.org/iosversionstats/
Hope that helps.
We just published a blog post on this topic, including a bunch of examples that we really liked. Check it out here:
On the bottom of the post you'll also find a link to a spreadsheet that has even more real-world examples—all collected by the community. Hope that helps.