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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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Google Antigravity
✓ verifiedFreemium
Google's agentic AI development platform and IDE; official major-vendor product.
👁 22M/mo♥ 18K
Pricing
No public pricing
Free: $0
Pro (Monthly): $16 per month
Pro (Yearly): $16 per month (billed yearly)
Individual plan: $0/month
Team plan: Coming soon
Enterprise plan: Coming soon
Essential: $29 per seat/mo (billed annually) + $0.99 per Fin resolution
Advanced: $85 per seat/mo (billed annually) + $0.99 per Fin resolution
Expert: $132 per seat/mo (billed annually) + $0.99 per Fin resolution
Fin AI Agent (on existing helpdesk): $0.99 per Fin resolution (50 resolutions per month minimum)
Copilot: $29 per agent/mo (billed annually)
Proactive Support Plus: $99 /mo
Core features
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- ✦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
- ✦AI IDE Core with tab autocompletion and natural language code commands
- ✦Configurable, context-aware agent
- ✦Higher-level abstractions for monitoring agent activity and verification
- ✦Cross-surface agents for synchronized control across editor, terminal, and browser
- ✦Intuitive integration of user feedback
- ✦Agent-First Experience for managing multiple agents from a central mission control view
- ✦Access to agent models: Gemini 3 Pro, Claude Sonnet 4.5, GPT-OSS
- ✦Fin AI Agent for automated customer support
- ✦Omnichannel support (inbox, tickets, phone, help center)
- ✦AI-enhanced inbox for agent productivity
- ✦AI Insights & Reporting for performance optimization
- ✦Workflow automation with a visual builder
Use cases
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- →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
- →Frontend developers can streamline UX development by leveraging browser-in-the-loop agents to automate repetitive tasks.
- →Full stack developers can build production-ready applications with thoroughly designed artifacts and comprehensive verification tests.
- →Enterprise developers can streamline operations and reduce context switching by orchestrating agents across workspaces using the Agent Manager.
- →Providing instant customer service with Fin AI Agent
- →Managing customer inquiries across multiple channels
- →Automating support workflows to improve efficiency
- →Empowering support agents with AI-powered tools
- →Gaining insights into customer service performance
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