# ChatStack in ChatGPT

> HTML: https://www.chatstack.app/chatgpt-plugin

The ChatGPT plugin **ChatStack - App Specs & Costs** turns an incomplete app idea into user stories, requirements, a technical specification, and an indicative development cost estimate — the same interview as https://www.chatstack.app/.

## Who it is for

Use it when you want a development brief and a planning figure without opening a coding tool. Builders who prefer Cursor, Claude, or another MCP client should use https://www.chatstack.app/chatstack-mcp instead.

## How to start

1. Open [ChatGPT Plugins](https://chatgpt.com/plugins/).
2. Search for **ChatStack - App Specs & Costs** and enable the plugin.
3. Describe your idea, or ask how much it would cost to build.
4. Go through the ChatStack interview with your ChatGPT assistant, responding to decisions as they come.
5. When the estimate is ready, submit your contact details. ChatStack emails the pack and a portal link.

## What you get

- Structured user stories
- Requirements and a technical specification
- An indicative total development cost — not a fixed quote
- An emailed pack and a portal link to refine MVP scope

Generating the PRD is free and usually takes about 10–30 minutes. A consultation to verify assumptions is optional.

## FAQ

### What is the ChatStack ChatGPT plugin?

The published ChatGPT plugin “ChatStack - App Specs & Costs”. ChatStack interviews you, then produces user stories, requirements, a technical specification, and an indicative development cost estimate.

### How do I start ChatStack in ChatGPT?

Open [ChatGPT Plugins](https://chatgpt.com/plugins/), search for “ChatStack - App Specs & Costs”, enable it, and go through the ChatStack interview. The steps are in How to start above.

### Do I need a ChatStack account to use the ChatGPT plugin?

No. The interview stays anonymous until you submit the PRD. Contact details are collected only at that step.

### Is ChatStack just a wrapper for ChatGPT?

No. ChatGPT is the host. ChatStack runs a structured interview that writes stories, requirements, a tech spec, and an estimate.

## Related

- ChatStack MCP: https://www.chatstack.app/chatstack-mcp.md
- MCP setup guide: https://www.chatstack.app/cursor-ai-prd-integration-guide.md
- What is ChatStack: https://www.chatstack.app/what-is-chatstack.md