CHEERZ is a free lifestyle app that lets you support your favorite idol girls through its live stream system, "ちあスト". With over 1000 participating idols, the app lets you check out cute photos uploaded by them and cheer them on by tapping the "CHEER" button. The app is perfect for those who want to follow their favorite idols and interact with them easily.

One of the best things about CHEERZ is that it's completely free to use. You can look at photos, watch live streams, and cheer on idol girls without spending a penny. Additionally, all the posts made by idols are real-time updates, which means you can stay up-to-date with their latest happenings. As you cheer on idols, your level on the app will increase, and you can cheer them even more. You can also check out the ranking list of supporting users/fans and get more attention from the idols you support.

Overall, CHEERZ is an excellent app for those who want to support their favorite idol girls and get closer to them. The app is easy to use, and the fact that it's free makes it accessible to everyone. So, if you're a fan of idol girls, give CHEERZ a try and show your support today!