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How to Build an AI App

Your Complete Guide to Vibe Coding

Last updated

October 20, 2025

Advertiser disclosure: some links on this website are affiliate links, meaning No Code MBA will make a commission if you click through and purchase.

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Remember when building an app meant spending months learning to code, hiring expensive developers, or watching endless YouTube tutorials just to create a basic login page? Yeah, those days are officially over.

Welcome to the era of vibe coding. You can build fully functional apps by simply describing what you want in plain English. No computer science degree required. Just you, your ideas, and AI that actually gets what you're trying to build.

Vibe coding is a software development practice coined by AI researcher Andrej Karpathy, where developers use natural language prompts to generate functional code from AI tools.

And it's not just hype. Base44 was acquired by Wix for $80 million just 6 months after launching. Swedish startup Lovable hit $100 million in annual recurring revenue just eight months after launch, while Replit's ARR soared from $2.8 million to $150 million in less than a year.

If you've been sitting on an app idea but felt blocked by technical barriers, this guide is for you. Let's explore how you can actually build an AI-powered app in 2025.

Base44
Best For: All-in-one AI app builder with beautiful design. Plus, integrated database, authentication, and AI agents.
Visit Base44

What Exactly Is Vibe Coding?

As Andrej Karpathy explained, vibe coding is about "fully giving in to the vibes, embracing exponentials, and forgetting that the code even exists". You focus on what you want to build, not how to build it technically.

Think of it like having a conversation with an incredibly skilled programmer who instantly transforms your ideas into working software. You say "I need a booking app with calendar integration and email confirmations," and boom! the AI generates it.

This workflow shifts the primary role from writing code line-by-line to guiding an AI assistant through a conversational process, freeing you up to think about the big picture while AI handles writing the actual code.

The Tool Landscape: What's Out There?

The vibe coding ecosystem has exploded, with tools for everyone from complete beginners to professional developers. Here's how they break down:

For Non-Technical Builders (No-Code Platforms)

These are full app builders where you describe what you want and the platform handles everything:

Base44 - Turns natural language descriptions into fully-functional apps with built-in backend, database, authentication, and role-based permissions. There are no external integrations required. Perfect for those who want an all-in-one platform.

Bolt.new - Creates full-stack web applications directly in your browser using natural language, supports frameworks like Next.js and Svelte, and deploys to Netlify with one click. Great for rapid prototyping.

Lovable - Builds entire web applications for people who don't want to code, creating complete apps with UI, backend, databases, user accounts, and payment systems. The current market leader.

v0 by Vercel - Focuses on creating React components and UI pieces, working with React, Vue, Svelte, and regular HTML. Best for frontend-focused projects.

For Developers (AI-Enhanced IDEs)

If you're comfortable with code but want AI superpowers:

Cursor - The fastest and most precise option, with Agent Mode for autonomous multi-file editing. More advanced and complicated to use, but gives users more control over the code.

Case Study: Base44: The $80M Overnight Success

Let me tell you about Base44, because its story perfectly captures the promise of vibe coding.

Base44's journey reads like a Silicon Valley fairy tale: solo founder Maor Shlomo built the company from his laptop, hit $1 million ARR in just three weeks, grew to over 400,000 users, and sold to Wix for $80 million. This happened all in just six months without raising any funding.

Think about that. Six months. Zero to $80 million. With a team of fewer than ten people pulling in $189,000 in monthly profit before the acquisition.

What Makes Base44 Special?

Base44 leverages advanced AI technology to translate simple, text-based descriptions into working apps, featuring built-in backends with user sign-ins and data storage automatically handled.

Unlike competitors like Lovable that connect to external tools like Supabase for backend functionality, Base44 has integrated backend with role-based permissions, authentication, and database built right in. Everything you need is already there. No need to stitch together multiple services.

Users describe their app idea in plain language and the AI builder brings it to life with intelligent templates and suggestions, building the foundation instantly with front-end layout, logic connections, and backend structure.

How to Actually Build Your App: The Step-by-Step Process

Alright, enough theory. Let's get practical. Here's how you go from idea to working app:

Phase 1: Planning (Don't Skip This!)

Start with technical discovery - clearly define the problem, research your target audience, identify required features, and choose the right AI development approach.

Ask yourself:

  • What specific problem am I solving?
  • Who will use this app?
  • What are the 3-5 core features I absolutely need?
  • Do I need this to scale to thousands of users or just validate an idea?

Phase 2: Choosing Your Tool

Here's a quick decision framework:

  • For beginners or small teams: Use Base44 or Lovable.
  • For UI-only projects: Choose Vercel v0.
  • For developers wanting control: Pick Cursor.

My recommendation? If you're a complete beginner with zero coding experience and need something production-ready fast, start with Base44 or Lovable. Both have everything built in.

Phase 3: Master the Art of Prompting

This is where most people mess up. Vague prompts lead to poor results.

Best practices include: providing extensive context, forcing AI to read your documents before generating code, using role-playing to have AI take on domain expert personas, and including visual references when possible.

Bad prompt: "Make me a task manager app"

Good prompt: "Create a task management app for freelancers with these features: user authentication, ability to create projects with multiple tasks, due date reminders via email, priority labels (high/medium/low), and a dashboard showing tasks due this week. Use a clean, modern design with a sidebar navigation."

See the difference? The second prompt gives the AI something to work with.

Phase 4: Build and Iterate

Here's what the actual building process looks like with a tool like Base44:

  1. Describe your app in the chat interface with as much detail as possible
  2. Review the first version - It'll generate a working prototype in minutes
  3. Refine through conversation - "Make the buttons bigger," "Add a search feature," "Change the color scheme to blue"
  4. Test functionality - Actually click through and use your app
  5. Deploy - Tools like Base44 let you publish with one click

Phase 5: The Crucial Security Step

Here's where things get real. Building fast is great, but building securely is essential.

Common security flaws in AI-generated code include SQL injection, insecure authentication flows, unsafe file handling, and improper input validation. What you MUST do:

You can ask the AI to review all your code for common security issues. Or tools like Base44 are now offering automated security scans, to help avoid the most frequent security pitfalls.

For instance, Base44's built-in security scanner provides a one-click check for hidden risks by scanning your app for critical vulnerabilities like row-level security (RLS) issues where users might have more access than they should, exposed secrets like API keys or credentials in your frontend code, and unsafe backend functions that trust request data without verifying user authentication or permissions.

Real Success Stories

These aren't just toy projects. People are building real businesses. Sabrine, the founder of Plinq, used vibe coding tools to build her app and grew it to 456k ARR in just a few months. Watch her full story:

Best Practices for Success

Here's what actually works:

1. Start with the Right Mindset

Successful vibe coders need three traits: agency (figuring things out yourself), curiosity (willingness to learn), and courage (willingness to fail and start over).

2. Begin Small

For first-time founders with limited technical experience, vibe coding is transformative for creating working prototypes and validating ideas, but you'll still need human technical resources to build a stable, scaling business as of 2025.

Build an MVP first. Test with real users. Then scale.

3. Think critically about the output

Don't just blindly accept everything the AI generates. Review, understand, and improve.

Your Action Plan

Ready to build? Here's your roadmap:

  1. Pick a tool based on your technical comfort level (I'd suggest Base44 or Lovable for beginners)
  2. Start with a simple project - Don't try to build the next Facebook on day one
  3. Write detailed prompts - Be specific about features, design, and functionality
  4. Test relentlessly - Click every button, try to break things
  5. Implement security checks - Use automated scanning tools
  6. Deploy and iterate - Launch fast, improve based on user feedback
  7. Know when to get help - For production apps with sensitive data, bring in a developer for security review
Base44
Best For: All-in-one AI app builder with beautiful design. Plus, integrated database, authentication, and AI agents.
Visit Base44

The Bottom Line

Vibe coding is revolutionary for MVPs and standard apps, but it's not a replacement for skilled developers. It signals the future of AI-assisted software development.

The real power of vibe coding isn't replacing developers. Instead, it's democratizing the ability to prototype, validate ideas, and build functional tools in hours instead of months. It's about getting your idea out of your head and into the world so you can test whether anyone actually wants it.

So stop overthinking and start building. Your app idea won't validate itself, and six months from now you'll wish you'd started today.

What are you going to build first?

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Unlock premium step-by-step tutorials building real apps and websites
Easy to follow tutorials broken down into lessons between 2 to 20 minutes
Get access to the community to share what you're building, ask questions, and get support if you're stuck
Access all of this with No-Code MBA Unlimited
Unlock premium step-by-step tutorials building real apps and websites
Easy to follow tutorials broken down into lessons between 2 to 20 minutes
Get access to the community to share what you're building, ask questions, and get support if you're stuck
Friendly Tip!
Companies often reimburse No Code MBA memberships. Here's an email template to send to your manager.