Instapaper premium is now available to everyone for free

You no longer have to pay for Instapaper's best features.  Pinterest, which acquired read-it-later app Instapaper earlier this year, announced Tuesday that the app's premium features are now available to all users for free. Those who have already paid for a yearly subscription to the app will get a prorated refund.  SEE ALSO: 5 apps to help anyone better manage their mental health Instapaper's app, which allows you to save articles to read later, has always been free to use but its mos