Sift vs Formstack
Formstack is a all in-one. Sift takes a different approach: instead of building forms with fields, users write naturally and AI extracts the data.
Formstack approach
Build a form with individual fields. Users fill in each one manually. Longer forms mean more drop-offs.
Sift approach
Users describe their situation in one text block. AI extracts all fields at once — name, email, issue type, urgency, everything.
Feature comparison
| Feature | Sift | Formstack |
|---|---|---|
| AI text extraction | ||
| Natural language input | ||
| Drag-and-drop builder | Not needed — AI extracts from freeform text | |
| Widget embedding | ||
| API access | Growth plan and above | |
| Webhook integrations | ||
| File/image processing | File upload and document generation | |
| Conditional logic | AI-driven | |
| Multi-language support | 120+ via AI | Manual translation |
| Custom branding | Coming soon |
Pricing comparison
Sift
From $29/mo
500 AI extractions included
Formstack
From $50/month (Starter, billed annually)
An enterprise-grade workflow platform combining forms, document generation, and electronic signatures with deep compliance features.
Why choose Sift
- 10x simpler setup — define a schema vs designing complex enterprise form workflows
- Users complete submissions in seconds with natural language instead of navigating multi-page enterprise forms
- AI validation catches semantic errors that rule-based validation misses entirely
- Starting at $29/month vs Formstack's $50/month minimum — significantly lower entry point
Why choose Formstack
- Full workflow suite with document generation, e-signatures, and approval workflows in one platform
- HIPAA compliance, SOC 2 certification, and enterprise security features for regulated industries
When Formstack is the better choice
Enterprise teams in regulated industries (healthcare, finance, government) that need HIPAA-compliant forms with document generation, e-signatures, and audit trails.
The key reason teams switch to Sift
Formstack is built for enterprise compliance workflows. If your primary need is collecting complex data efficiently rather than managing document workflows, Sift's AI-first approach gets better data in less time at a fraction of the cost.
Frequently asked questions
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