Get data from server only when there is new rows in MySQL table

I 'm developing an app that collects data from a MySQL server to fill a table . I want to know if there are ways to make the request only if there are new values ​​in the MySQL table.

My intention is to save the data in an array on the phone to not have to collect the data every time you start the app , just make the request to the PHP file if new data exists or have changed .

Thanks , I hope to help someone with the same doubts