App0

What is App0?

App0 is an AI app builder that turns a written idea into a working full-stack web app. You pick GPT-5.6 or Claude 5, describe the goal, and it plans, codes, tests, and fixes the project in an isolated sandbox. You get a live HTTPS preview and a complete codebase you own.

Top Features:

• Model choice: switch between GPT-5.6 and Claude 5 and tune reasoning effort.
• Full-stack output: frontend, backend, database, and APIs are built in one workflow.
• Code export: download the complete project and deploy it anywhere you like.

Use Cases:

• Internal tools: brief an admin tool over lunch and share it that afternoon.
• MVP validation: turn a startup idea into a clickable product before hiring developers.
• Existing projects: upload a codebase and ask for new features or bug fixes.

Who Can Use App0?

• Indie developers: skip boilerplate and get a working first version in minutes.
• Early-stage founders: build and test product ideas without writing any code yourself.
• Product and ops teams: create internal apps without waiting on engineering.

Pricing

• Free ($0 per month): one app with five conversations each month on GPT-5.6 Sol.
• Day passes (from $5.90): one to seven days of building, up to five apps.
• Standard ($99 per month): one app, unlimited conversations, a custom domain, and hosting.

Pros and Cons

Pros:

• No token billing: paid plans include unlimited conversations at a fixed monthly price.
• Real verification: type checks, tests, and builds run before you see results.
• Code ownership: you can modify, deploy, or sell everything the builder generates.

Cons:

• Steep subscriptions: monthly plans start at $99, which is high for hobby projects.
• App caps: every plan limits how many apps you can create at once.
• Young product: a small user base means fewer community guides.

FAQs:

1) Do I need coding skills?

No, you can describe and refine your app entirely in plain language.

2) Which AI models can I use?

Subscriptions include GPT-5.6 and Claude 5, while day passes use GPT-5.6 Sol.

3) Who owns the generated code?

You own all exported code and can modify, deploy, or commercialize it freely.

4) Can it work on an existing project?

Yes, upload your project and it adds features or fixes issues within its structure.

5) How much do bigger plans cost?

Pro costs $199 monthly for five apps, and Max costs $299 for ten apps.