Productivity: App of the Day -- Instapaper

Having access to the internet on your smartphone is great, assuming you're not 30,000 feet in the air. It's one of traveling's downsides--not being able to access your 3G network while on an airplane. Instapaper solves this problem, if reading articles or browsing websites is what you want to do when you're 6 miles above the ground.

Instapaper works by installing a simple plugin in your Safari browser on your iPhone and downloading the Instapaper app. After it is installed, you can save pages to the app through Safari. This saves a copy of the webpage in the app allowing you to view them later, even while offline.

Screenshots from Instapaper's iOS App Store page.

This great feature allows for offline browsing both during travel, and while you may not have 3G network access. Although not completely necessary for casual travelers, it is a huge convenience for frequent-fliers of the sky.

Instapaper is available now for $4.99 in the iOS App Store. If you're looking to try before you buy, check out the free version of Instapaper here.