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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.

Sherpa Coder logo
Sherpa Coder
✓ verifiedFree

VS Code extension letting developers chat with their own custom OpenAI assistants without leaving the editor.

QuickFiling logo
QuickFiling
✓ verifiedFreemium

AI-guided immigration petition drafting for NIW, EB-1A, EB-1B, O-1, I-485, and EB-5 cases, priced per case type.

17K visits/mo
Firebase Studio logo
Firebase Studio
✓ verifiedFree

Browser-based AI dev workspace by Google for full-stack apps; being sunset on 22 Mar 2027, no new workspaces.

531K visits/mo
v0.dev logo
v0.dev
✓ verifiedFreemium

Vercel's AI app builder that generates and deploys full-stack React web apps and UI components from natural-language prompts.

176K visits/mo
Softgen logo
Softgen
✓ verifiedFreemium

AI app builder that turns plain-English prompts into deployable full-stack web apps with a managed database and full code ownership.

103K visits/mo16K saves
Pricing

No public pricing

Dr. I-485: $299 (free to start)
Dr. Visa: $199 (free to start)
Dr. NIW: $749 (free to start)
Dr. EB1A: $949 (free to start)
Dr. EB1B: $949 (free to start)
Dr. O-1: $949 (free to start)
Dr. EB-5: $999 (free to start)

No public pricing

Free: $0/mo ($5 included monthly credits, 7 messages/day limit)
Team: $30/user/mo ($30 included monthly credits per user)
Business: $100/user/mo ($30 included monthly credits per user, training opt-out by default)
Starting plan: $25/mo (entry-level tier per pricing comparison)

Free trial available

Core features
  • in-editor chat with OpenAI assistants
  • workspace source-code context sharing
  • support for custom, user-defined assistants
  • secure management of the user's OpenAI account
  • Category-specific AI specialists for NIW, EB-1A, EB-1B, O-1, I-485, and EB-5
  • Free initial eligibility evaluation before payment
  • Automated organization of supporting evidence and exhibits
  • Drafts full USCIS-ready petition letters and document checklists
  • Optional RFE (Request for Evidence) response drafting
  • DS-160 prep and consular interview guidance for nonimmigrant visas
  • Cloud workspaces for full-stack development
  • App Prototyping agent from natural language
  • Gemini AI for coding, debugging and docs
  • Repo import from GitHub, GitLab and Bitbucket
  • Web previews and Android emulators
  • Deploy to Firebase App Hosting, Hosting or Cloud Run
  • Prompt-to-app generation of full-stack web applications
  • One-click deployment to Vercel hosting
  • GitHub sync for pushing generated code to a repository
  • Visual design mode for fine-tuning generated UI
  • Prebuilt templates for apps, dashboards and landing pages
  • Agentic building with automatic database and API connections
  • iOS app for building and editing on mobile
  • Builds full-stack apps from plain-English descriptions
  • Choice of 12+ underlying AI models
  • Managed Supabase database included
  • GitHub code export on all plans
  • One-click Vercel deployment
  • Credits that don't expire while subscribed
Use cases
  • getting coding help without switching out of VS Code
  • using a personalized OpenAI assistant tuned to a project
  • quick in-editor Q&A while writing code
  • Self-filing petitioners building an NIW or EB-1A case without full attorney drafting
  • Immigration attorneys speeding up evidence organization and drafting
  • Employers preparing EB-1B outstanding researcher petitions
  • Visa applicants preparing DS-160 answers and interview readiness
  • Prototyping apps from a prompt or mockup
  • Building full-stack apps in the browser
  • Collaborating and sharing preview URLs
  • Deploying and monitoring apps quickly
  • Developers rapidly prototyping and deploying web apps
  • Teams generating UI components and design systems from prompts
  • Non-technical founders building MVPs without writing code
  • Students and hobbyists building and publishing small projects
  • Non-technical founders shipping an MVP quickly
  • Agencies delivering client projects faster
  • Developers prototyping SaaS ideas without boilerplate setup
  • Solo builders launching small businesses without hiring engineers
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