A Side-by-Side Comparison

What is the Best Form Assembly Alternative?

Formstack and FormAssembly are two powerful online form building apps. But when we look at them side-by-side, Formstack stands out as a more marketing-friendly tool that will create more opportunities for your sales team. Formstack is the best FormAssembly alternative.

How we stack up on features

Formstack and FormAssembly both offer a wide variety of features for online form building. Here's how we compare, along with our peers in the industry.

Online Form Builder Comparison Chart

Formstack 123ContactForm Adobe Google Gravity Forms Form Assembly Formsite EmailMeForm Jotform TypeForm Wufoo



Adobe® FormsCentral

Google® Forms

Gravity Forms

Form Assembly






Payment Processors

11 10 1 0 5 4 3 9 More info 1 10

3rd-party Integrations

40+ 30 0 0 12 11 4 16 More info 1 12

Calculating Fields

Formstack calculating fields 123ContactForm calculating fields Gravity Forms calculating fields Form Assembly calculating fields Formsite calculating fields Jotform calculating fields

Conditional Logic

Formstack conditional logic 123ContactForm conditional logic Adobe conditional logic Gravity Forms conditional logic Form Assembly conditional logic Formsite conditional logic EmailMeForm conditional logic Jotform conditional logic TypeForm conditional logic Wufoo conditional logic

Full HTML Access (customizable)

Formstack full HTML 123ContactForm full HTML Adobe full HTML Form Assembly full HTML Formsite full HTML Jotform full HTML TypeForm full HTML Wufoo full HTML

Save & Resume

Formstack save and resume 123ContactForm save and resume Adobe save and resume Form Assembly save and resume Formsite save and resume EmailMeForm save and resume Jotform save and resume

256-Bit SSL (security)

Formstack 256-bit SSL 123ContactForm 256-bit SSL Adobe 256-bit SSL Form Assembly 256-bit SSL Formsite 256-bit SSL EmailMeForm 256-bit SSL Jotform 256-bit SSL

Mobile-ready (responsive)

Formstack Mobile-ready 123ContactForm Mobile-ready Adobe Mobile-ready Gravity Forms Mobile-ready Form Assembly Mobile-ready Formsite Mobile-ready EmailMeForm Mobile-ready Jotform Mobile-ready TypeForm Mobile-ready Wufoo Mobile-ready

Mobile Apps

Formstack AppleFormstack WindowsFormstack Android Google Forms Android Jotform AppleJotform Android

Admin Brand Control

Formstack admin brand control 123ContactForm admin brand control Adobe admin brand control Gravity Forms admin brand control Form Assembly admin brand control Formsite admin brand control EmailMeForm admin brand control Jotform admin brand control TypeForm admin brand control Wufoo admin brand control

Approval Workflow

Formstack approval workflow 123ContactForm approval workflow Jotform approval workflow

Digital Signatures

Formstack digital signatures 123ContactForm digital signatures Gravity Forms digital signatures FormAssembly digital signatures Formsite digital signatures Jotform digital signatures

Email Logic Routing

Formstack email logic routing 123ContactForm email logic routing Gravity Forms email logic routing FormAssembly email logic routing Jotform email logic routing Wufoo email logic routing

Facebook Tab Embed

Formstack Facebook tab embed 123ContactForm Facebook tab embed EmailMeForm Facebook tab embed Jotform Facebook tab embed Wufoo Facebook tab embed

Google Analytics Plugin

Formstack google analytics plugin 123ContactForm google analytics plugin


Formstack subaccounts 123ContactForm subaccounts Form Assembly subaccounts Formsite subaccounts EmailMeForm subaccounts Jotform subaccounts


Formstack subdomains FormAssembly subdomains Jotform subdomains Wufoo subdomains

Webhooks & Open API

Formstack webhooks open API 123ContactForm webhooks open API Gravity Forms webhooks open API Form Assembly webhooks open API Formsite webhooks open API Jotform webhooks open API TypeForm webhooks open API Wufoo webhooks open API

508 Compliant

Formstack 508 compliance FormAssembly 508 compliance

Annual Discount

Formstack 123ContactForm Gravity Forms FormAssembly Annual Discount EmailMeForm Jotform TypeForm Wufoo

Nonprofit Discount

Formstack 123ContactForm Form Assembly EmailMeForm TypeForm Wufoo

Zero Overage Charges

Formstack no overages 123ContactForm no overages Adobe no overages Google Forms no overages Gravity Forms no overages Form Assembly no overages Formsite no overages Jotform no overages

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Working with

Formstack integrates seamlessly with Salesforce. Our app lets marketers create or update contacts, leads, and opportunities directly from form submissions. Initiate excellent customer service by linking Salesforce emails to deploy upon form submission. Not only does Formstack have a robust Salesforce integration, but we will also help you convert more traffic into leads with marketer-focused tools.

Need to Go

An accessible form is a high-converting form. Expand your reach and increase form submissions with mobile responsive forms. Formstack forms automatically adjust for any and all mobile devices.

Get your online forms off the assembly line.

Make the switch to Formstack with a 14-day FREE trial.

14-Day Free Trial

“This tool is phenomenal. Formstack is so much easier to use, and the functionality is unsurpassed.”

Tiffany Tobol, Creative: MMS | Blog post

“Formstack is far more intuitive than Wufoo or other services I've tried.”

Marie Reynolds, Mount Laurel Schools

“I did find it really stupidly simple to create a form—even one with some complexity—so it is elegant software that perfectly fits a bill.”

Todd Kasenberg, Principal, Guiding Star Communications and Consulting