Yes the GlobalPatron platform is PCI compliant both for its own processing of internal payments and subscriptions, as well as PCI compliant for payments which you as a customer receive on your own user-built forms.
Regarding storage of sensitive payment details, at no time do we store payment details on our own platform, and instead intentionally offload the storage and processing to industry leading payment gateways (e.g. Stripe and PayPal).
To further protect both form owners and form submitters, and to reduce fraud, the platform also incorporates numerous additional security measures to prevent the accidental (or intentional) violation of PCI compliance.