Feedless blocks your Facebook, Twitter, and Instagram feeds in Safari on your iPhone. You can use all other parts of the services as usual, we just block the feed. Take control of your time, and say goodbye to mindless scrolling!
Started using this in beta a couple weeks ago and can honestly say it helps to adjust my behavior and break the bad habit of scroll addiction.
I do a lot of marketing work via Twitter so I can't completely block it. Feedless let's me keep up with my @'s and notifications without letting me wonder off into endless scrolling land.
Really helps break the feed checking cycle on mobile.
Only works on the web, you have to uninstall the apps.