入居チェックアプリ is a utility tool for iPhone that allows users to record comments on photos of room damages and dirt. The free version includes advertisements and features points to remember in records, automatic display of shooting date and legal basis, along with tips for taking photos and a feature to prevent forgetting to take pictures.

To use the app, users need to input property information, select the shooting location, choose a photo, add comments, review the content, and save it.

For more information and support, users can refer to the app's instruction manual and visit the NPO's Rent Trouble Assistance Team website.