If you are currently using iBank Mobile 1.4.x and wish to upgrade to iBank for iPhone, you’ll need to purchase iBank for iPhone here: https://itunes.apple.com/us/app/ibank-for-iphone/id919518925?mt=8
iBank Mobile was out for over 5 years and we didn’t charge an upgrade. iBank for iPhone is an entirely new app, completely re-written that provides more functionality than ever, while still making transaction entry on the go easy. Unfortunately, it isn’t sustainable for us to make every new release a free upgrade, so iBank for iPhone must be purchased.