Price drops are the norm in app business. Developers are keen to slash prices of their digital warez, mostly for a limited time, in order to boost revenue. Some apps even go from paid to free permanently in the hope of raking in more revenue through in-app purchases. Just a few recent examples: Evernote has temporarily made the Penultimate handwriting app free and National Geographic's World Atlas for the first time has gone free.
Netbot, the Tweetbot for App.net, is also a free download now. A new survey was published Friday, highlighting the positive effect of price changes on download volumes and revenue of iPad and iPhone apps in the App Store...