Quick answer: If you need to collect a one-time payment inside WordPress, GriffinForms lets you build that flow directly in a form with Stripe or PayPal, payment totals, and payment status tracking. It is a better fit than a full store when the job is a registration fee, donation, service deposit, course payment, or a simple order form.
WooCommerce is the right tool for a catalog or store. A payment form is the right tool when there is a single payment step attached to a workflow, not a product archive.
This page covers what GriffinForms payment forms support, the most common use cases, and the simplest setup path.