Signup protection.
Prevent chargebacks, fake accounts, and unwanted, exploitative usage of your SaaS, newsletter, or online service.
Replaces: Sift, ClearSale, custom lists.
Lifetime access with FounderStack.

Everything you need. Yours for life.
One payment unlocks SignupGate's Shield plan, including unlimited API calls, monitoring and analytics, and custom lists.
Protect every signup without another monthly bill.
Pay once for lifetime access to SignupGate, backed by our 30-day money-back guarantee.
Questions, answered.
Everything you need to know about your SignupGate lifetime license.
Do you offer a refund?
Yes. You have 30 days to try SignupGate. If it is not right for you, let us know and we will refund your purchase, no questions asked.
How do I access SignupGate after purchase?
We will email you a license key. Enter it on SignupGate's upgrade page to activate your lifetime access.
Will I receive software updates?
Yes. Your license maps to SignupGate's Shield plan, so you receive the updates and limits included with that plan.
How is my payment information protected?
Payments are processed securely through Stripe. FounderStack does not store your credit card details.