Compare a FormKeep alternative on limits and AI setup
FormKeep and FormThunder both collect form submissions, with different limits. FormKeep lists 50 free submissions a month, and 1,000 for $4.99, and says each form has its own monthly limit. FormThunder gives 250 free and 10,000 for $12 across the account. FormKeep's pricing page lists no MCP server, CLI or client accounts, which FormThunder includes. Checked November 2026.
FormThunder and FormKeep side by side
Checked November 2026, from formkeep.com/pricing. Check their page for current numbers. "Not listed" means we couldn't find it on that page.
| FormThunder | FormKeep | |
|---|---|---|
| Free plan | 250 submissions a month | 50 submissions a month |
| Paid plans (submissions a month) | Pro $12/mo: 10,000. Agency $39/mo: 20,000 | Essential $4.99/mo: 1,000. Professional $19.50/mo: 10,000. Premium $59/mo: 100,000. Enterprise $99/mo: unlimited. Limits are per form |
| MCP server | Yes, on every plan | Not listed |
| CLI | Yes, on every plan | Not listed |
| Client accounts and billing | Unlimited free client accounts on Agency, billed through your Stripe | Team members on specific forms. Client accounts not listed |
Which one fits you
FormKeep may suit you better if
- You have one quiet form and $4.99 a month for 1,000 submissions is all you need.
- You need 100,000 submissions or more. FormKeep lists Premium and Enterprise tiers above anything FormThunder offers.
FormThunder may suit you better if
- You want an AI agent to do the setup and the email branding.
- You have several forms and would rather count limits across the account.
- You manage client sites and want client accounts and billing.
Moving from FormKeep
- Create a form in FormThunder and copy its key.
- Replace the FormKeep endpoint in the form's
actionwithhttps://formthunder.com/submit, and add a hiddenaccess_keyfield. - Send a test, then remove the old endpoint once you've seen the email arrive.
Questions
How does FormKeep count its limit?
Its pricing page says: "Each form has a limit of the number of submissions it accepts per month."
How does FormThunder count its limit?
Per account, per month, across all your forms. Forms and domains are unlimited on every plan.
Try it on one form
The free plan covers 250 submissions a month, with MCP and the CLI included.