Klirry has a flat rate. There are no percentages of your sales or ad spend and no per-feature charges.
Where to see your plan
Open Settings, then Billing. It shows your current plan and links to the public pricing page at klirry.com/pricing, which is the only place prices are stated. This help article deliberately does not repeat them, so the two can never disagree.
If a payment fails
A banner at the top of the app says "We couldn't process your last payment" and links to Billing details.
Stopping
You can cancel at any time from the same page. See cancelling your account.