Say Goodbye to Formstack: Why Blocksurvey is the Ultimate Survey Tool Replacement

BlockSurvey is the best Formstack alternative for teams that want form pricing they can predict and response data that stays private by default. Formstack's Forms plan starts at $99/mo ($83/mo billed annually) with only a 14-day free trial, while BlockSurvey encrypts every response end-to-end so that even BlockSurvey itself can't read it.

Formstack is a well-established form and document platform used by internet marketers, freelancers, and small-to-mid-size teams, and it's a solid choice if you're already invested in its ecosystem (especially its Salesforce integration). If Formstack's pricing, entry-tier limits, or lack of end-to-end encryption no longer fit your needs, here's a side-by-side look at BlockSurvey as an alternative.

Formstack vs BlockSurvey: Quick Comparison (2026)

What is Formstack?

Formstack (rebranded to "Intellistack" in June 2025, though the underlying products and pricing structure stayed the same) is a web application for building and managing online forms, aimed at marketers, freelancers, and small-to-mid-size business teams. It offers a form builder, file attachments, email notifications on data entry, and export features, alongside separate Documents and Sign products that can be bundled into its Suite plan.

The Formstack form builder lets you build custom forms and collect data into Formstack's database, and it comes with a number of integrations, notably Salesforce, that automate data collection. It's a capable, mature tool. It also has some real drawbacks worth knowing about before you commit.

Why Teams Are Leaving Formstack

Reviewers on G2 and Capterra consistently point to a handful of recurring pain points:

• Fragmented, compounding pricing: Forms, Documents, and Sign are sold as separate products, so the cost of the full stack (the $299/mo, or $250/mo annual, Suite plan) adds up fast for teams that need more than basic forms. Multiple reviewers describe it as expensive relative to alternatives.
• Restrictive entry-tier limits: the $99/mo ($83/mo annual) Forms plan caps out at 25 forms and 1,000 submissions per form, which pushes growing teams to upgrade sooner than they'd like.
• Support complaints: widespread reports of email-only support, slow or unhelpful responses, and multi-level ticket queues.
• Difficult cancellation and billing: reviewers report no clear cancel button in the product, a 30-day advance-cancellation requirement, and continued billing even after attempting to cancel.
• Steep learning curve for advanced features: templates, field mapping, complex conditional logic, and integrations take real ramp-up time, especially for smaller teams without dedicated admin bandwidth.

To be fair, no verified, well-documented data breach specific to Formstack turned up in our research. Formstack does publish a stated Incident Response / Data Breach policy, which is a good sign, but it's a policy, not proof of a track record either way.

Formstack: Pros and Cons

Pros

• Easy-to-use drag-and-drop builder, intuitive and no coding required
• Strong integrations, including a well-regarded native Salesforce integration
• Powerful conditional logic and workflow automation
• Broad customization for branding and data collection needs

Cons

• Pricing is fragmented across Forms/Documents/Sign and compounds quickly for full-stack use
• Restrictive limits at the entry tier (25 forms, 1,000 submissions/form)
• Support is largely email-only, with reports of slow response times
• Difficult cancellation and billing practices reported by multiple reviewers
• Steep learning curve for advanced features

BlockSurvey as a Formstack Alternative

BlockSurvey is a strong alternative to Formstack for teams that want a simpler pricing model and stronger default privacy. A few of the reasons teams switch:

End-to-end encryption: BlockSurvey encrypts every response before it's stored, using keys only you control, so even BlockSurvey's own team can't read your survey data.

AI-driven form builder: BlockSurvey can generate surveys and forms in seconds with the help of AI.

Customization options: BlockSurvey offers a wide range of templates and design options, so you can create forms and surveys that match your brand. You can add your own branding elements (logos, color schemes) for a professional, personalized look.

Simple, transparent pricing: BlockSurvey publishes a free plan and paid plans directly at blocksurvey.io/pricing. Formstack, by comparison, offers no perpetual free plan (only a 14-day trial) and starts its Forms plan at $99/mo ($83/mo billed annually), with the bundled Suite plan at $299/mo ($250/mo billed annually).

User-friendly interface: BlockSurvey has a simple, intuitive interface for creating and customizing forms and surveys.

Response analytics: BlockSurvey includes analytics tools so you can track responses and gain insight into your audience.

Together, these make BlockSurvey a solid choice for anyone who needs to collect sensitive information securely while still building engaging, well-designed forms and surveys.

BlockSurvey: Pros and Cons

Pros

• End-to-end encrypted responses, so data ownership stays with you, not the platform
• AI-assisted form/survey creation
• Simple, transparent pricing published at /pricing
• Clean, easy-to-learn builder interface
• Templates and branding customization included

Cons

• Smaller, newer integration library than an established player like Formstack
• No native Salesforce integration comparable to Formstack's
• Less third-party review volume on sites like G2/Capterra than a long-established competitor

What is BlockSurvey?

BlockSurvey is one of the strongest Formstack alternatives available, and here's what sets it apart.

BlockSurvey is built around a simple idea: ownership of your data belongs to you, not the platform. Every response is encrypted end-to-end, and you hold the keys to it, so BlockSurvey itself cannot read your survey data. That is a different privacy model from a typical cloud form tool, where the vendor can technically access whatever is stored on its servers. Data security is built into how the product works, not added on afterward.

Best Formstack Alternative in 2026: The Verdict

Choose Formstack if: you're already invested in the Salesforce ecosystem and need its native integration, you rely on advanced conditional-logic workflows, and the fragmented Forms/Documents/Sign pricing and entry-tier limits (25 forms, 1,000 submissions/form) aren't a concern for your team or budget.

Choose BlockSurvey if: you want transparent, predictable pricing, you're collecting data where end-to-end encryption and "even we can't read it" privacy matter (healthcare, HR, research, sensitive feedback), or you've hit Formstack's entry-tier limits and want a straightforward AI-assisted builder without the multi-product pricing stack.

Takeaway: BlockSurvey is an Affordable, Privacy-First Alternative to Formstack

BlockSurvey makes it easier to create online forms using powerful, modern features, without needing to trust the platform with unencrypted access to your data. It's built from the ground up to protect the confidential information individuals and organizations collect.

Check current plans and free-tier details at blocksurvey.io/pricing, or sign up for a free account to try it out for yourself.