Yes you can! You can update your Basic and Advanced subscriptions in one click.
This feature is available from the Expert plan
Advanced Subscriptions
Go to “Subscriptions (Advanced)” and click the lightning bolt icon next to the title, “Bulk update subscriptions”. Then choose the currency of the subscriptions you want to change at the top (EUR by default).

Click on “Add new rule” to define a new filter

Select a field to filter on, in this example we filter on the amount of specific subscription rules

Now you can see on the right that there is 1 subscription with a total of 1 rule with the amount of €12,-.
Fill in your new price to update the filtered subscriptions (you can choose between a fixed amount and a percentage), click save and then confirm it.

Basic Subscriptions
Go to “Subscriptions (Basic)” and click the lightning bolt icon “Bulk update subscriptions” next to the title. Then choose the currency at the top (EUR by default).

Click on “Add new rule” to define a new filter

Select a field to filter on, in this example we filter on the amount of specific subscriptions

Due to the limitations of the Basic Subscriptions, it is not possible to see the number of filtered subscriptions.
Fill in your new price to update the filtered subscriptions (you can choose between a fixed amount and a percentage), click save and then confirm it.

Adding multiple filter rules means subscriptions have to match all filters.