Depend of each app, we are now offering 3 type of charges as the following
1. Free charge
You can keep using it forever WITHOUT any extra cost.
NO charging is required.
You can decide to upgrade to Paid plan whenever you want.
2. Recurring application charges
These charges are for recurring use of an app, such as a monthly subscription. They appear on your regular Shopify subscription bill.
Normally the app will come at first with Free trial period of time (7/14 days)
Trial days are available for Free for testing purpose before your actual subscription.
You will have to approve charge before starting your trial, but NO cost will be issued if you uninstall the app, OR downgrade to Free plan (in case the app has or Free plan is still available) before the trial period (7/14 days) ends.
We do NOT issue the refund when you have finished free trial period, unless there are some errors from Shopify payment system.
3. Usage charges
These charges are variable based on how much you're using the app, or the service that it integrates with. They appear on your regular Shopify subscription bill.
If you have any further concerns, please feel free to contact us via live chat or email us at email@example.com