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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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OpnForm
✓ verifiedPaid
Open-source AI form builder for free forms and surveys; strong adoption and traffic.
👁 30K/mo♥ 684
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UPDF AI
✓ verifiedPaid
AI-powered PDF editor across desktop and mobile with full toolset; strong adoption.
👁 1.1M/mo♥ 2.0K
Pricing
Lite: Free
Basic: $5 /mo
Standard: $12 /mo
Plus: $25 /mo
Premium: $50 /mo
Free: $0
Pro (Monthly): $16 per month
Pro (Yearly): $16 per month (billed yearly)
Basic: $0/month
Pro: $20/month
Team: $49/month
UPDF Pro (Yearly): US$39.99/Year
UPDF Pro (Lifetime): US$69.99/Lifetime
AI Assistant (Yearly): US$79.00/Year
UPDF Sign (Yearly): US$69.00/Year
Essentials: $15 USD / mo
Standard: $25 USD / user / mo
Premium: Get a custom quote.
Core features
- ✦No-code survey setup
- ✦On-site, email, and SMS survey options
- ✦Integrated AI insights
- ✦Intuitive dashboard with charts and reporting
- ✦Advanced targeting rules and third-party integrations
- ✦Fully translatable surveys
- ✦AI Form Builder
- ✦Unlimited forms, fields, and responses (Free plan)
- ✦Form logic, URL pre-fill, Hidden fields
- ✦File uploads, Custom code, Webhooks
- ✦Customizable themes and thank you pages
- ✦Form Analytics
- ✦Integration with Notion databases
- ✦Unlimited fields and submissions
- ✦Customizable form styling
- ✦Conditional logic and validation rules
- ✦Ready-made form templates
- ✦File uploads
- ✦Multi-page forms
- ✦Email, Slack, and Discord notifications
- ✦Submission editing
- ✦Form protection (password, captcha)
- ✦AI-powered PDF editing
- ✦PDF reading and annotation
- ✦PDF conversion and creation
- ✦PDF organization and compression
- ✦PDF protection and signing
- ✦AI summarization, translation, and explanation
- ✦Cross-platform availability (Windows, Mac, iOS, Android)
- ✦Electronic signatures
- ✦Document management
- ✦Template creation
- ✦Integration with other tools
Use cases
- →Collect zero-party data using post-purchase surveys
- →Run email capture campaigns
- →Create interactive polls and forms
- →Drive change in marketing spend and product line (Ecommerce)
- →Gather feedback for product while rewarding & engaging your users (SaaS)
- →Ask your audience what types of content they want to see (Blogs & Media)
- →Creating contact forms
- →Conducting surveys
- →Collecting internal announcements
- →Managing warehouse inventory check-ins
- →Gathering training feedback
- →Processing international job applications
- →Streamlining legal petitions
- →Supporting environmental initiatives
- →Guest blog submission forms
- →Event attendee check-in forms
- →Customer satisfaction surveys
- →Patient intake forms
- →Photography quotation requests
- →Equipment rental requests
- →Photo shoot permit requests
- →Summarizing long PDF documents for quick understanding
- →Translating PDF files to different languages
- →Explaining complex technical or medical terms in PDFs
- →Chatting with PDFs to get answers to specific questions
- →Editing and annotating PDF documents for collaboration
- →Converting PDFs to other formats for compatibility
- →Protecting sensitive PDF documents with passwords
- →Streamlining sales contract and proposal signing
- →Automating paperwork for hiring and employee onboarding
- →Collecting NDAs, waivers, and secure personal information
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