Two popular form builders compared on the same 25-row feature matrix and pricing, with FormBuilder shown as a third column so you can see another option to consider.
Overview
Formstack started as an online form builder in 2006 and has grown into a workflow suite: Formstack Forms (the builder), Formstack Documents (merge submissions into PDFs, Word files and contracts), and Formstack Sign (e-signature). The pitch is that one platform can take a request from intake form to generated document to signed agreement without code, which is why it sells mainly to operations, HR, healthcare and higher-ed teams.
The form builder itself is capable rather than flashy: drag-and-drop fields, conditional logic, multi-page forms, calculations, save-and-resume, payments (Stripe, PayPal, Authorize.net and others), workflows with approvals, and 300+ integrations. Its Salesforce apps are a genuine differentiator — forms that read and write Salesforce records natively and can live inside Experience Cloud — and it offers HIPAA compliance, PCI and SOC 2 for regulated buyers.
involve.me (originally brandquiz) is not a general form builder so much as an interactive-content builder. Its "funnels" are multi-step experiences — personality and product-recommendation quizzes, price and ROI calculators, lead-magnet surveys, payment and booking flows — that live on a hosted landing page, embed, or pop-up and push leads into your CRM or email tool. Outcome logic, answer scoring, calculators and A/B testing are core, and 350+ templates are built around marketing outcomes rather than form types.
The pricing reflects that focus. Plans are metered on live funnels and seats: Start (3 live funnels, 1 user), Grow (5 live funnels, 2 users, branding removed, 1 custom domain), and Scale (25 live funnels, 5 users, 3 custom domains, A/B testing, Salesforce), with Enterprise from $499 / month. On annual billing that is $29, $69 and $139 a month; month-to-month is roughly $49, $99 and $199. A free account allows 2 live funnels and 50 submissions or 500 visits a month with 30-day retention and no exports, integrations or logic jumps.
Pricing
In each vendor's own terms; Formstack checked 2026-08-17, involve.me checked 2026-08-18. FormBuilder: free plan (5 forms, 100 responses / mo) and Pro at $39 / month or $390 / year.
Feature comparison
25 capabilities across building, design, data workflow and security.
| Feature | FFormstack | iinvolve.me | FFormBuilder |
|---|---|---|---|
| Building | |||
| AI form generation from a prompt | PartialAI features rolling out; not the core building flow | YesAI funnel generator, metered by credits | Yes |
| Drag-and-drop visual builder | Yes | Yes | Yes |
| Template library | YesHundreds, skewed to HR, healthcare, education | Yes350+ marketing-oriented templates | Yes300+ |
| Conditional logic / branching | Yes | YesLogic jumps & outcomes on paid plans | Yes |
| Multi-page / multi-step forms | Yes | YesMulti-step funnels are the default | YesPro |
| Calculations & scoring | Yes | YesCalculators & scoring are a core strength | YesCalculation field + auto-graded quizzes |
| File uploads | Yes2 GB on Forms · 10 GB Suite | YesFile upload element on paid plans | Yes100 MB free · 1 GB Pro |
| Payment collection | YesStripe, PayPal, Authorize.net, Square & more | YesStripe & PayPal from Start | YesStripe — paid to your own account, no platform fee |
| E-signature field | YesSignature field; full e-sign via Formstack Sign | PartialNot a headline feature; check vendor | Yes |
| Design | |||
| Custom themes & branding | YesThemes & CSS | YesDeep design controls | YesPro |
| Remove vendor badge | YesPaid plans; no free tier | YesGrow, $69 / mo (annual) | YesPro, $39 |
| Custom domain | YesPaid plans | Yes1 on Grow · 3 on Scale | Yes |
| Embed on any site | Yes | YesEmbed, pop-up, hosted page | Yes |
| Data & workflow | |||
| Free-plan monthly responses | NoNo free plan; 14-day trial | Partial50 submissions or 500 visits / mo | Partial100 / mo, overflow held |
| Over-limit responses kept (not rejected) | PartialPer-form submission caps; overage handled by upgrade | NoFunnel stops at the limit | Yes |
| Email notifications & autoresponders | Yes | YesEmail automations on paid plans | Yes |
| Webhooks | Yes | YesPaid plans | YesAll plans |
| Zapier / native integrations | Yes300+ native + Zapier; deep Salesforce | YesZapier, Make, HubSpot, Klaviyo, Salesforce (Scale) | Yes6,000+ apps |
| Built-in analytics (views, drop-off) | YesSubmission analytics; conversion kit on higher tiers | YesFunnel analytics; A/B testing on Scale | Yes |
| CSV / spreadsheet export | Yes | YesCSV / XLS on paid plans only | Yes |
| Team workspaces & collaboration | YesExtra builder seats cost more | Partial1 / 2 / 5 users by tier | Yes |
| Security | |||
| Password-protected forms | Yes | PartialOTP verification on Scale | YesPro |
| HIPAA / BAA | YesAdd-on on Forms/Suite; included Salesforce & Enterprise | NoNo BAA offered | PartialHIPAA plan coming soon |
| GDPR tooling & DPA | Yes | YesEU-hosted (Frankfurt), SOC 2 Type II | Yes |
| SSO / SAML | YesEnterprise | YesEnterprise only | PartialEnterprise |
Another option to consider
AI-first form builder with a generous free plan, held (never lost) responses, and 6,000+ integrations. Describe the form you need, the AI drafts it, and you refine it with logic, multi-page layouts, uploads, signatures and Stripe payments. Free plan: 5 forms and 100 responses a month with overflow held, never lost. Pro: $39 / month for 100 forms and 10,000 responses with the badge removed.
Questions
involve.me's entry paid plan (Start at $29 / month (annual)) is cheaper than Formstack's (Forms at $83 / month (annual, $99 monthly)). Both offer a free plan (2 live funnels · 50 submissions or 500 visits / mo · 30-day retention · no exports, integrations or logic jumps · involve.me branding) and a 14-day trial respectively. Note the plans differ in limits — see the tables above. FormBuilder Pro, for reference, is $39 / month for 10,000 responses.
Formstack offers a 14-day trial. Prices shown are per month billed annually; monthly billing is roughly 20% higher. Submission limits are per form. No free plan — 14-day free trial of Forms.
involve.me offers a free plan (2 live funnels · 50 submissions or 500 visits / mo · 30-day retention · no exports, integrations or logic jumps · involve.me branding). Prices shown are per month on annual billing; monthly billing is roughly $49 / $99 / $199. Plans are metered on live (published) funnels and users. Check vendor pricing for current numbers.
Formstack payments: Yes (Stripe, PayPal, Authorize.net, Square & more). involve.me payments: Yes (Stripe & PayPal from Start). FormBuilder collects Stripe payments to your own account with no platform fee on every plan, including free.
Formstack HIPAA / BAA: Yes (Add-on on Forms/Suite; included Salesforce & Enterprise). involve.me HIPAA / BAA: No (No BAA offered). FormBuilder's HIPAA plan with BAA ($99 / month) is currently rolling out.
Formstack is a no-code workflow platform for mid-size and enterprise teams that bundles forms, document generation and e-signature, with a deep Salesforce integration. involve.me is a marketing-first builder for quizzes, calculators, lead funnels and surveys — priced per live funnel and aimed squarely at lead generation rather than everyday forms. Formstack is best for operations, HR and admissions teams that need forms to feed documents, approvals and e-signatures; involve.me is best for marketers building lead-qualification quizzes, product finders and calculators.
FormBuilder is worth a look if you want an AI generator that drafts forms from a sentence, 100 free responses a month with overflow held rather than lost, Stripe payments with no platform fee, and a flat $39 / month Pro plan for 10,000 responses. See our full FormBuilder vs Formstack and FormBuilder vs involve.me comparisons.
Last reviewed August 2026. Spotted something out of date? Tell us and we'll fix it.
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