7 Massive iPhone/iPad App Marketing Mistakes Guaranteed To Even Kill Killer Apps
I received this submission, and I was reluctant to look at it since there seems to be a flood of marketers trying to cash in as app marketing experts. I decided to accept this one as it is somewhat different, and didn’t simply provide a simplistic list of tips such as take good screenshots, start a blog, or sell internationally. Please comment on whether you’d like to see more content on app marketing in the future.
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Getting The Most Out Of The Three20 Open Source Library
I mentioned the Three20 open source library many months ago as a quick way to perform many utility operations within your app quickly such as photo-viewing, creating stylized buttons, and http caching.
Since then I’ve come across several tutorials that have really helped get more out of this library, and add some pretty cool functionality to iPhone apps.
Learning iPhone Game Programming Book
Just a quick shout out from a book from 71 Squared, the creators of the excellent iPhone game programming videos that you may have been found on this site.
Mike Daley’s upcoming book iPhone Game Programming has been released as a rough cut (essentially a beta verson of the book). You can read about it here: Learning iPhone Game Programming – available on Safari Rough Cuts.
[Source: 71 Squared]
Is It Worth Advertising Your App With Admob?
Purchasing ads in the Admob network is a method used by many to increase the number of downloads their app receives.
The question is, would it be worth it to purchase ads for your app?
Recently, the owners of Strip Creator, a $1.99 app that allows you to create comic book strips using photo library or camera pictures ran a campaign to test the Admob network.
Phonegap And iWebKit Demo (Video and Source)
Randy McMillan sent me information on an example that he has posted this time illustrating the usage of Phonegap and iWebKit.
I have created a short video demoing the example in action:
No knowledge of Objective-C is necessary to create an app using these technologies, and as you can see the look and feel is just like a native application. In the demo the app is running in the simulator as a native app, not in Safari. While action games will suffer a noticeable performance lag, apps that are non-graphically intensive have pretty good performance.
Easy And Accurate 2D Collisions
It is a simple process to perform box collisions in Cocoa Touch using the CGRectIntersectsRect function, and while this is easy and provides decent performance it does not make for the most accurate collisions.
A couple of new tutorials have been created featuring techniques for creating more accurate collisions methods.
The first tutorial is from 71 Squared on Collision Detection Methods which has a some nice straightforward functions written in C that you can drop into your code for Circle to Rectangle, and Circle to Circle collisions.