Waitku - Restaurant Wait List iPad Tablet App. Hostess and host station app designed to help you manage your wait list. Waitku tablet is FREE for life. Upgrade and receive unlimited texting wait list customer for just $49 a month. Manage servers, tables, wait list. Improve table turns. Keep your customer happy without paying an arm and a leg. Waitku is brought to you by Guest Innovations the leader in front of house management software.