iOS: Instapaper's most recent update brings in compatibility with iOS 7, as well as a slew of new features including sorting and video support.
The biggest new feature in Instapaper is the new sorting and filtering option. You can now sort articles by reading time, chronological order or popularity. The reading time sorting is especially nice when you're pressed for time. This version of Instapaper also adds support for playing videos, as well as a few design and performance tweaks.