We have released the official app of 546!With this app, you can receive the latest information of 546 and use convenient functions.[What you can do with the app]You can do the following using this application.1. Check the latest information!You can check the service contents of 546.Also, you will receive a message from the shop, so you can check the latest information at any time.2. Check the information on My Page!You can check the usage status of 546.3. Introduce to friends!You can introduce 546 apps to your friends through SNS.4. Full of other useful functions!