How to Build a Simple Web App Using AI Tools in 3 Days

Building a web app can feel overwhelming, especially if you're a beginner. You might think you need extensive coding knowledge or months of development time. However, with the right AI tools, you can create a functional web app in just three days. In this guide, I’ll walk you through the essential tools and steps to make this happen.

Day 1: Planning and Prototyping

Define Your Idea

Before diving into the tools, clarify your app's purpose. What problem will it solve? Who is your target audience? A clear idea will guide your decisions.

Tools for Prototyping

1. Figma

   • What it does: Design and prototype interfaces collaboratively.
   • Pricing: Free tier + $12/mo pro.
   • Best for: UI/UX design.
   • Limitations: Limited features in free tier.
   • Our take: We use Figma for quick mockups and design feedback.

2. Bubble

   • What it does: No-code platform to design and launch apps.
   • Pricing: Free tier + $29/mo for personal use.
   • Best for: Building web apps without coding.
   • Limitations: Learning curve for complex apps.
   • Our take: We prefer Bubble for its extensive features as we scale.

Create a Prototype

Use Figma to sketch out your app's main screens. Focus on user flow and key functionalities. This prototype will serve as a visual guide for your development process.

Day 2: Development with AI Tools

Choose Your Tech Stack

For this phase, you'll need tools that streamline the coding process. Here are some AI coding helpers:

3. OpenAI Codex

   • What it does: AI-powered code generation based on natural language prompts.
   • Pricing: $0-20/mo depending on usage.
   • Best for: Quickly generating code snippets.
   • Limitations: May require editing and debugging.
   • Our take: We use Codex to speed up repetitive coding tasks.

4. GitHub Copilot

   • What it does: AI pair programmer that suggests code as you type.
   • Pricing: $10/mo after a free trial.
   • Best for: Assisting with code completion.
   • Limitations: Not always contextually accurate.
   • Our take: We find Copilot helps reduce coding time significantly.

Develop Core Features

Using Bubble, develop your app’s core features based on your prototype. Use OpenAI Codex and GitHub Copilot to assist with backend logic and integrations.

Day 3: Testing and Launching

Test Your App

5. Postman

   • What it does: API testing tool to ensure your app's endpoints work.
   • Pricing: Free tier + $12/mo pro.
   • Best for: Testing APIs before launch.
   • Limitations: Can be complex for beginners.
   • Our take: We test all integrations using Postman for reliability.

6. Sentry

   • What it does: Error tracking tool for web apps.
   • Pricing: Free tier + $29/mo for teams.
   • Best for: Monitoring app performance.
   • Limitations: Limited features in the free tier.
   • Our take: Essential for catching bugs before launch.

Launch Your App

After testing, deploy your app using a platform like Vercel or Netlify. Both are free for small projects and support easy deployments.

Pricing Comparison Table

| Tool | Pricing | Best For | Limitations | Our Verdict | |-----------------|---------------------------|----------------------------------|----------------------------------|--------------------------------------| | Figma | Free tier + $12/mo pro | UI/UX design | Limited features in free tier | Great for design feedback | | Bubble | Free tier + $29/mo | No-code app building | Learning curve for complex apps | Powerful for scaling | | OpenAI Codex | $0-20/mo | Code generation | Requires editing | Speeds up coding tasks | | GitHub Copilot | $10/mo | Code completion | Not always accurate | Reduces coding time | | Postman | Free tier + $12/mo pro | API testing | Can be complex for beginners | Essential for reliable integrations | | Sentry | Free tier + $29/mo | Error tracking | Limited features in free tier | Important for catching bugs |

Conclusion: Start Here

Building a simple web app in three days is entirely feasible with the right tools. Start by defining your idea, use Figma for prototyping, leverage AI tools for development, and don't forget to test thoroughly before launching.

In our experience, using a combination of Bubble for no-code development and AI tools like OpenAI Codex and GitHub Copilot can drastically reduce the time and effort needed to ship your app.

What We Actually Use

For our projects, we typically rely on Bubble for building apps, Figma for design, and Sentry for monitoring. This stack keeps our workflow efficient and manageable.

Ready to build your web app? Get started today!