Once for the Instapaper subscription, once to buy the app from the third party d...

stavros · on Feb 11, 2011

Yes, but this is sort of like people having to buy a router even though they pay for their net connection.

true_religion · on Feb 11, 2011

More to me like having people buy software even though they already paid for their computer.

Instapaper is the backend. The app is the added value. Likely the 3rd party app isn't going to eclipse the brand of Intapaper so they'll be selling their added value directly to existing Instapaper subscribers.