In Google Play Console
Change of existing subscription’s price can have the following impacts on new users and subscribers.
New users can immediately see the subscription’s new price and subscribe to it on Google Play.
If you change the price multiple times before the next renewal date, the user only has to respond to the most recent price change.
Existing subscribers receiving a price decrease will be notified and receive the lower price on their next renewal date.
How price increases are communicated to existing subscribers
The concerned subscribers will be notified of the price change via email and a notification on Google Play. They will then have 30 days to agree to the price change, otherwise, their subscription will be canceled on their next renewal date.
Price increases may cause an increase in churn if subscribers do not accept the price change. We recommend contacting affected subscribers to inform them of the price increase within 7 days in advance to give an explanation for the change and remind them of the value they are receiving.