People frequently express their amazement that Twitter is free, but for some people, it isn’t – Twitter Blue launched last year in several countries, tacking on a few extra features for anyone willing to pay $2.99 per month. The service is increasing the price and in the US, jumping up to $4.99 per month. That probably won’t break the pockets who are choosing to pay for a service that still includes ads in their feed, but it might be enough to make people ask themselves if it’s worthwhile. The add-ons in the Twitter Blue package range from extremely useful (an undo tweet window to fix typos, a customisable navigation bar, a list of Top Articles shared by people you follow, and ad-free access to articles on sites) to trivial (the ability to choose from different app icons) to questionable (NFT hexagon profile pics). The higher price is already taking effect for new subscribers, but for the early adopters, it will stay locked in at the original price until October and can expect to receive an opportunity to cancel at least 30 days before the new rate takes effect.