No. We process payments through Stripe. Codegrip never saves any sensitive information about your credit-card while billing. Additionally, you can access the details like payment date, plan name, users, amount, transaction id, billing period in the purchase tab of your settings panel.
Here is more information on What is an Open Source License (OSL)?
How do I find the duplication?
Can there be multiple admin users in Codegrip?
How long will it take to get my Analysis?