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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.

Angular.dev logo
Angular.dev
✓ verifiedFree

Google's open-source TypeScript framework for building scalable web apps, featuring signals, reactivity and first-party tooling.

1.1M visits/mo
OpenTrain AI logo
OpenTrain AI
✓ verifiedFreemium

Talent marketplace linking AI labs with 257,000+ vetted data labelers and trainers for RLHF, red-teaming and evaluation.

574K visits/mo
Base44 logo
Base44
✓ verifiedFreemium

No-code AI platform that builds full-stack apps, websites and agents from plain-language prompts with hosting built in.

18M visits/mo
Appy Pie logo
Appy Pie
✓ verifiedFree trial

Appy Pie's AI app builder turns prompts into publishable native iOS/Android apps with backend, payments and push, aimed at non-coders.

280K visits/mo
Pricing

No public pricing

No public pricing

Self-Service: 10% marketplace fee + $9.95 contract initiation fee
Managed Service: 20% management fee
Free: $0
Starter: $16/mo
Builder: $40/mo
Pro: $80/mo
Elite: $160/mo
Basic: $16/app/mo
Gold: $36/app/mo
Platinum: $60/app/mo

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
  • Signals-based fine-grained reactivity
  • Built-in control flow and deferrable views
  • Server-side rendering and hydration
  • First-party routing, forms and dependency injection
  • AI-forward tooling and MCP resources
  • In-browser tutorials and playground
  • Network of 257,000+ pre-vetted AI data experts
  • AI-matched shortlists with skills tests and interviews
  • Bring talent into any annotation platform, no lock-in
  • Self-service or fully managed engagements
  • Job feed aggregating 20+ platforms for freelancers
  • Prompt-to-app full-stack generation
  • Built-in backend, database and auth
  • One-click integrations (Slack, Notion, HubSpot, etc.)
  • Instant hosting and custom domains
  • Superagents for automated workflows
  • GitHub sync and code export
  • Prompt-to-app AI generator
  • Native Android and iOS binaries
  • Included backend, payments and push
  • Visual editor with natural-language edits
  • Store publishing assistance
  • Prompts understood in 8 languages
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
  • Building scalable single-page apps
  • Enterprise web application development
  • Performance-critical front ends
  • Learning modern web development
  • Sourcing experts for RLHF and model evaluation
  • Staffing red-teaming and data-labeling projects
  • Scaling annotation teams into existing tools
  • Finding AI training gigs as a freelancer
  • Building internal tools and dashboards
  • Launching websites and landing pages
  • Creating customer portals and CRMs
  • Deploying AI agents that automate tasks
  • Launching native apps without coding
  • Building apps for SMB verticals
  • Publishing to Google Play and the App Store
  • Adding payments and push to an app
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