I switched from Pinboard to Raindrop to AnyBox. Pinboard hasn’t received much love for years and when I received an answer to my support request a year after sending the email, it was clear that I have to look somewhere else. Raindrop felt like an okay replacement, but never felt solid to me and introduced a bunch of “undefined” categories. Very inconvenient to deal with. I am now using AnyBox [1], a macOS and iOS app that syncs using iCloud. The developer is super responsive and I could not be happier!

[1] https://anybox.app/