The 三幸学園卒業生ネットワークアプリ is an iPhone app designed for graduates of Sanko Gakuen. It aims to facilitate connections among alumni by featuring video messages from alumni in various industries, reunion scenes between alumni and teachers, and campus festival videos for current students. The app, centered around the concept of "Sanko-Link," offers exclusive benefits such as the latest job postings across different fields, with job placement support included. Users can also enjoy skill enhancement opportunities and childcare support. The app allows for easy requests for issuing graduation certificates and updating addresses.

The app's key features include the distribution of "Graduate Special Coupons" offering discounts on services like diving, accommodations, wedding venues, and a 40% discount on various qualifications such as medical office work, welfare, childcare, bridal services, and Japanese language teaching. It also provides prompt delivery of recommended job opportunities with free job placement support, all without the need for membership registration.