Formstack vs Gravity Forms: Which Is Better in 2026?

Formstack and Gravity Forms solve the same core problem — collecting data through online forms — but from fundamentally different architectures. Formstack is a standalone SaaS platform with enterprise compliance, document generation, and e-signatures, starting at $83/month. Gravity Forms is a WordPress plugin that extends your existing WordPress site with advanced form capabilities, starting at $59/year.

The real question isn't which is "better" — it's whether you want a managed enterprise platform or a WordPress-native solution. This comparison breaks down where each approach genuinely excels and where it falls short.

Who Are These Platforms?

Formstack was founded in 2006 in Indianapolis. Originally a simple form builder, it evolved through acquisitions into an enterprise workflow platform spanning forms, document generation (Formstack Documents), and e-signatures (Formstack Sign). Silversmith Capital Partners acquired a majority stake, positioning the company firmly in enterprise territory. Pricing starts at $83/month with no free tier.

Gravity Forms launched in 2009 as a premium WordPress form plugin built by Rocketgenius. It quickly became the go-to form solution for WordPress developers and agencies. Unlike freemium competitors, Gravity Forms has always been premium-only — you pay an annual license fee for the plugin and its add-ons. The company remains independent and focused exclusively on WordPress, with a mature ecosystem of official and third-party extensions.

Feature Comparison

Side-by-side across every feature category.

Where Formstack Wins

Enterprise Compliance Out of the Box

Formstack delivers SOC 2 Type II, HIPAA with BAA, SSO/SAML, data encryption at rest and in transit, and granular role-based access controls as platform features. You don't need to configure anything — compliance is baked into the infrastructure. With Gravity Forms, HIPAA compliance requires assembling a compliant hosting environment, managing encryption, and coordinating BAAs across multiple vendors. For regulated industries, Formstack's turnkey compliance saves hundreds of hours of infrastructure work.

Document Generation and E-Signatures

Formstack Documents merges form data into PDF, Word, and Excel templates — generating contracts, invoices, and reports automatically. Formstack Sign adds multi-party e-signature workflows with signing order enforcement and audit trails. This forms-to-documents-to-signatures pipeline is Formstack's core differentiator. Gravity Forms can integrate with third-party document and signature tools, but you're connecting separate services rather than using a unified platform.

No WordPress Required

Formstack works anywhere — embed forms on any website, share standalone links, or use the Salesforce-native product. You don't need WordPress, a hosting provider, or plugin management. Gravity Forms is WordPress-only. If your organisation doesn't use WordPress, or uses multiple web platforms, Formstack's platform independence is a significant advantage.

Where Gravity Forms Wins

Price: 75-90% Less Expensive

Gravity Forms Elite costs $259/year for unlimited forms, unlimited sites, and all official add-ons. Formstack starts at $83/month ($996/year) for forms alone — documents and e-signatures are additional. The annual cost difference is $700-2,000+ depending on Formstack tier. For WordPress-based businesses, Gravity Forms delivers comparable form-building capabilities at a fraction of the cost. The savings compound over years.

WordPress-Native Performance

Gravity Forms runs inside WordPress — form data stays in your database, forms render with your theme, and everything integrates with your existing WordPress plugins and workflows. There's no iframe embedding, no external redirects, no third-party data handling. Page load speeds are faster because forms are server-rendered, not loaded from an external service. For WordPress sites where performance and SEO matter, native forms outperform embedded SaaS widgets.

Developer Ecosystem and Extensibility

Gravity Forms has an extensive API, hundreds of hooks and filters, and a massive ecosystem of official and third-party add-ons. Developers can customise every aspect of form behaviour, validation, submission handling, and display. The add-on marketplace includes advanced features like Gravity Flow (workflow automation), GravityView (front-end data display), and dozens of CRM/email/payment integrations. Formstack's API exists but is more limited — it's designed for enterprise use, not developer extensibility.

Data Ownership and Control

With Gravity Forms, your form data lives in your WordPress database on your server. You control backups, encryption, retention policies, and access. With Formstack, your data lives on Formstack's servers — you trust their security and data handling practices. For organisations with strict data sovereignty requirements or who simply prefer owning their data infrastructure, Gravity Forms gives you complete control.

Pricing Comparison

The pricing models are fundamentally different — SaaS subscription vs annual WordPress license.

What Users Say

Gravity Forms holds strong ratings among WordPress users, praised for reliability, developer-friendliness, and the depth of its add-on ecosystem. Common criticism: no free plan, and the learning curve for advanced conditional logic. Formstack averages around 4.2/5 on G2, with positive marks for enterprise compliance and document workflows but recurring criticism of high pricing and complexity. WordPress developers overwhelmingly prefer Gravity Forms for its native integration; enterprise IT teams favour Formstack for turnkey compliance.

Where Both Fall Short

• No free plans: Neither offers a free tier. Gravity Forms is premium-only for WordPress; Formstack starts at $83/month with no trial readily available.
• Design limitations: Neither produces forms that look like designed landing pages. Both create functional form layouts without rich document-style editing.
• No calculation engine: Neither offers Excel-style formulas for dynamic pricing, conditional scoring, or computed outputs that flow across questions, pages, and integrations.
• Payment depth: Both support Stripe and PayPal, but neither offers a full eCommerce stack with product catalogues, subscription management, coupon engines, and tax calculations.

The Verdict

Choose Formstack if you need enterprise compliance without infrastructure work. SOC 2, HIPAA, document generation, and e-signatures as managed services justify the premium for regulated industries. The platform-independent architecture works for organisations that don't use WordPress.

Choose Gravity Forms if you run WordPress and value cost efficiency. At $59-259/year versus $996+/year, the savings are dramatic. WordPress-native performance, developer extensibility, and full data ownership make it the rational choice for WordPress-based businesses that don't need enterprise compliance certifications.

The deciding factor is simple: WordPress or not? If your organisation runs on WordPress, Gravity Forms delivers comparable form capabilities at 75-90% less cost. If you need a standalone platform with enterprise compliance, Formstack is built for that. Both are mature products from companies founded over 15 years ago — stability isn't a concern with either choice.

Last updated March 21, 2026