Then you'll love the Android app. The Promolante App comes with all the features you see on this site and more. On the app, you have access to all the data bundles from the various networks with the ability to tap to buy.
Check out the Promolante app for yourself.
Enjoy 70 minutes to call all local networks, 100MB data to browse the internet and 7 SMS to all networks valid for 7 days. Subscription fee is GHC5.