For iOS: https://apps.apple.com/us/app/sink-it-for-reddit/id644987363...

Just FYI, it's out on Chrome, Firefox and Edge too in addition to MacOS and iPadOS. Links on the site gosinkit[dot]com Disclaimer - I made this.

It is possible. There has been one on Chrome for years I use every day: https://chromewebstore.google.com/detail/old-reddit-redirect...

Just a quick heads up. I missed some DMs on Reddit because I have a FF extension to automatically redirect me to old.reddit.com because the notification indicator at the top wasn't lit.

I discovered the same thing, but when I saw the DMs I missed over the years I was glad to have missed them. They were all scammy.

I have been doing this using iOS Shortcuts and a regex for years. Except instead of old I redirect to a redlib instance.

StopTheMadness free iOS browser extension can redirect arbitrary URLs based on regex.

StopTheMadness didn’t fit my needs iirc. I have heard “Redirect Web for Safari” is a decent alternative solution though, have yet to try it

At least it has worked reliably for old.reddit and yt->invidious.