I am making a app in which ones the users login then they got 1 month login subscription And as there 1 month is over in the firebase there is a bucket named as status in that expired value should come
Infact, I know the user expired date and start date is there any option to change the value after 1 month
To help You I Have a Solution
Use Another Database like Airtable in that Your User Data should be Stored along with Subscription Information. After your App has Detected if One Month is Completed update Value of the Specific Row And Change you Subscription Status to False or Expired.
When user open app get data expire date from firebase and compare it with current date which you can get from world time API. If current date is after from expire date then save data on firebase that user plan expired. But do it whenever user open app. Simple as that.