Compare tools
Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
⇄ Comparison dimension — pick the market you're actually shopping in
✕
HeyCLI
✓ verifiedFree
Preview CLI copilot that translates plain-English requests into Linux shell commands.
222 visits/mo2.5K saves
✕
Gemini Code Assist
✓ verifiedFreemium
Google's AI coding assistant for code completion, generation, chat and review across IDEs and GitHub.
559K visits/mo
✕
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
✕
Codeflying
✓ verifiedFreemium
Vibe-coding builder creating full-stack apps by chatting with AI.
118K visits/mo
✕
Stately
✓ verifiedFreemium
Visual state-machine editor (built on XState) that lets teams design app logic as diagrams and export runnable JS/TS code.
71K visits/mo
Pricing
No public pricing
No public pricing
No public pricing
Free: 0$
Basic: 25$
Advanced: 40$
Premium: 200$
Professional: $33/month (annual) or $39/month (monthly), 1,000 AI generations/month
Team: $167/month (annual) or $199/month (monthly), up to 10 members
Free trial available
Core features
- ✦Natural language to Linux command translation
- ✦Simple 'hey' prefix invocation
- ✦GitHub-based install
- ✦Early preview release
- ✦AI code completion and suggestions
- ✦Natural-language code generation
- ✦In-IDE chat assistance
- ✦AI code review
- ✦IDE integrations (VS Code, JetBrains, etc.)
- ✦GitHub integration
- ✦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
- ✦CodeFlying enables full-stack app creation via chat in minutes
- ✦Drag-and-drop visual state machine editor
- ✦Bidirectional code/diagram sync via XState
- ✦AI generation and modification of state machines
- ✦Auto-generated React app prototypes and tests
- ✦GitHub sync and Figma embedding
- ✦Live simulation and Stately Inspector for debugging
- ✦Version history and shareable diagrams
Use cases
- →Recall forgotten Linux commands
- →Speed up terminal work
- →Help beginners learn shell commands
- →Speeding up coding with AI completions
- →Generating code from plain-language prompts
- →Getting in-editor help and explanations
- →Reviewing pull requests with AI
- →Understanding unfamiliar codebases
- →Prototyping apps from a prompt or mockup
- →Building full-stack apps in the browser
- →Collaborating and sharing preview URLs
- →Deploying and monitoring apps quickly
- —
- →Frontend teams modeling complex UI flows
- →Backend teams documenting workflow logic
- →Teams wanting living, always-current documentation
- →Non-technical stakeholders reviewing app logic visually
Visit