Head to head
Stop guessing which one. Put them side by side.
Up to 4 tools, same rows for each: what it is, what it really costs, the trap, and how to wire it up. The URL carries your picks — send it to anyone.
DyadGoogle Firebase Studioa0.dev
Quick read
- Free with no card: Google Firebase Studio.
| Field | Dyaddyad.sh | Google Firebase Studiofirebase.studio | a0.deva0.dev |
|---|---|---|---|
| What it is | A desktop app for macOS and Windows that builds full-stack JavaScript apps locally using your own OpenAI, Anthropic, Google or local model keys. Supabase integration covers database, auth and functions; deploy to GitHub, Vercel or your own cloud. Apache 2.0 apart from src/pro, with 21K+ GitHub stars. | Browser IDE built on Code OSS with an App Prototyping agent that turns a prompt into a Next.js or React app wired to Firebase. Supports Flutter and React Native workspaces plus full Git access to the generated code. Google announced its sunset on 19 March 2026. | Generates real React Native (Expo) projects — actual component files and navigation stacks, not a webview wrapper — with Convex or Supabase for data plus built-in AI inference and image-generation APIs. It runs the build, creates your App Store Connect listing, and uploads it for you. |
| Category | AI app builders | AI app builders | AI app builders |
| Cost tier | mixed | free | mixed |
| Pricing | Free and open source (bring your own keys) · Pro $20/mo (200 credits) · Max $79/mo (900 credits) | Free · 3 workspaces (10 with Google Developer Program, 30 Premium) · Blaze billing for App Hosting | Free (limited messages, 1 project) · Pro $20/mo (100 messages/day) · $50 / $100 / $200 and up |
| Why builders pick it | The zero-lock-in answer: no signup, no per-token platform markup, and your source and prompts never leave the machine. The obvious pick for client work under NDA, or for anyone tired of credit meters. | Was the cheapest way to get a Gemini-built app sitting directly on Firestore and Firebase Auth with no credit meter anywhere. Only relevant now for finishing and migrating workspaces you already have. | The shortest distance from prompt to an app sitting in review on both stores, because it owns the build and submission step that normally eats a week. Source export unlocks at Pro. |
| Watch out for | You pay model providers directly, so a runaway agent loop hits your API bill with no platform-side cap. There is no hosted preview URL or built-in deploy target — you wire hosting yourself. | Shutting down. New workspaces and signups were disabled 22 June 2026, and the service shuts off 22 March 2027 with remaining data deleted. Google directs users to AI Studio or Antigravity; Firestore and Auth are unaffected. | The free plan caps you at one project and cannot export code — you need Pro to get the source out. Message caps, not compute, are the binding constraint on real work. |
| How to wire it up | Download the macOS or Windows build from dyad.sh; no account required. | not logged | Apple Developer Program ($99/yr) and Google Play ($25 one-time) accounts are still required. |
| Editor's pick | No | No | No |
Which one did you ship?
The grid says what these tools are. This says what builders did about it — one decision per person, changeable whenever you change your mind.
0/280Sign in to add yours.
Or try
Hand this to your Lovable agent
# Tool comparison — Dyad vs Google Firebase Studio vs a0.dev Source: Kbaise, a directory of tools that work with Lovable projects. Pick one and tell me why before writing any integration code. ## Dyad (dyad) - URL: https://www.dyad.sh - Category: AI app builders - Cost: mixed — Free and open source (bring your own keys) · Pro $20/mo (200 credits) · Max $79/mo (900 credits) - What it is: A desktop app for macOS and Windows that builds full-stack JavaScript apps locally using your own OpenAI, Anthropic, Google or local model keys. Supabase integration covers database, auth and functions; deploy to GitHub, Vercel or your own cloud. Apache 2.0 apart from src/pro, with 21K+ GitHub stars. - Why builders pick it: The zero-lock-in answer: no signup, no per-token platform markup, and your source and prompts never leave the machine. The obvious pick for client work under NDA, or for anyone tired of credit meters. - Trap: You pay model providers directly, so a runaway agent loop hits your API bill with no platform-side cap. There is no hosted preview URL or built-in deploy target — you wire hosting yourself. - Wiring: Download the macOS or Windows build from dyad.sh; no account required. - Full dossier: /api/public/tools/dyad ## Google Firebase Studio (google-firebase-studio) - URL: https://firebase.studio - Category: AI app builders - Cost: free — Free · 3 workspaces (10 with Google Developer Program, 30 Premium) · Blaze billing for App Hosting - What it is: Browser IDE built on Code OSS with an App Prototyping agent that turns a prompt into a Next.js or React app wired to Firebase. Supports Flutter and React Native workspaces plus full Git access to the generated code. Google announced its sunset on 19 March 2026. - Why builders pick it: Was the cheapest way to get a Gemini-built app sitting directly on Firestore and Firebase Auth with no credit meter anywhere. Only relevant now for finishing and migrating workspaces you already have. - Trap: Shutting down. New workspaces and signups were disabled 22 June 2026, and the service shuts off 22 March 2027 with remaining data deleted. Google directs users to AI Studio or Antigravity; Firestore and Auth are unaffected. - Full dossier: /api/public/tools/google-firebase-studio ## a0.dev (a0-dev) - URL: https://a0.dev - Category: AI app builders - Cost: mixed — Free (limited messages, 1 project) · Pro $20/mo (100 messages/day) · $50 / $100 / $200 and up - What it is: Generates real React Native (Expo) projects — actual component files and navigation stacks, not a webview wrapper — with Convex or Supabase for data plus built-in AI inference and image-generation APIs. It runs the build, creates your App Store Connect listing, and uploads it for you. - Why builders pick it: The shortest distance from prompt to an app sitting in review on both stores, because it owns the build and submission step that normally eats a week. Source export unlocks at Pro. - Trap: The free plan caps you at one project and cannot export code — you need Pro to get the source out. Message caps, not compute, are the binding constraint on real work. - Wiring: Apple Developer Program ($99/yr) and Google Play ($25 one-time) accounts are still required. - Full dossier: /api/public/tools/a0-dev ## Quick read - Free with no card: Google Firebase Studio. ## Rules 1. Prefer the free tier when no budget was stated, and say what the ceiling is. 2. Read the full dossier before integrating. 3. Fetch /api/public/models before writing any AI model ID.
Agents can fetch the same thing: GET /api/public/compare?slugs=dyad,google-firebase-studio,a0-dev