I have purchased a Standard Plan, but it shows up as a Free Plan.

Please check the following

• Please start AgriBus-NAVI and log in from “Account” at the bottom right of the home screen.If you have registered multiple times, please make sure your Google account or email address is correct.

• If you have more than one Google account, please make sure that it is the Google account you purchased.Google Play Help > Adding and using an account on your device