Each of these amazing games by Chair Entertainment Group are currently FREE in the Australian App Store.
While IB2 was posted yesterday https://www.ozbargain.com.au/node/255723 the whole range is now free - IB, IB2 and IB3
FREE IB3 was posted by TA last year and was very popular https://www.ozbargain.com.au/node/210785 with 225+ votes!
Compatible for both iPhone and iPad
Great game, wish Android had it. One of the things i miss from having an iphone