A-CHESS is now available in the iOS App Store as the "Connections" Application. This means no more redemption codes will be needed for iOS devices. We highly recommend your current iOS download the A-CHESS application from the App store and delete their current application. Support for the Redemption Code Version will expire on Sunday, December 10th, 2017. All data will be transferred except for Journal Entries, Goal Entries, High-Risk Locations, and Motivations.
The link to that version is here.
Current iOS version number in Settings 2.7.61
To narrow down search results by generally searching on the iOS App Store we recommend searching for "connections a-chess" "a-chess addiction" or "a-chess support"