HAIR ICIヘアーアイス is a free lifestyle app developed by AISU K.K. for iPhone users. The app offers exclusive seasonal hair care information and special deals directly to users. By presenting the app during visits, users can collect stamps within the app for rewards on future visits. Additionally, users can easily make reservations at various locations through the app, simplifying the booking process.

The app is free to use and requires users to ensure their device's software is up to date for optimal performance. Please note that some older operating systems may not be compatible, with iOS 12 or above being the recommended version for seamless functionality.