Some of the features of a school ERP mobile app may include:
1. Attendance Management: The app can allow teachers to take attendance on the go, and send notifications to parents if their child is absent.
2. Exam Management: The app can provide teachers with a platform to create, schedule, and conduct exams, and provide students with their exam results.
3. Homework and Assignments: The app can allow teachers to assign homework and assignments to students, and allow students to submit their work through the app.
4. Communication: The app can provide a platform for teachers, parents, and students to communicate with each other through messaging and notifications.
5. Timetable Management: The app can provide a platform for schools to manage their timetables, including scheduling classes and managing substitute teachers.
6. Fee Management: The app can allow parents to pay fees and other expenses, and provide schools with a platform to manage their finances.

7. Library Management: The app can allow students to search for and borrow books from the school library, and provide librarians with a platform to manage the library's inventory.

8. Transport Management: The app can allow parents to track their child's school bus and receive notifications about pick-up and drop-off times.

Overall, a school ERP mobile app can streamline school operations, improve communication between teachers, parents, and students, and provide a more efficient and effective way to manage school resources.