Greg Isenberg•Mar 21, 2025
He makes $750 a day 'Vibe Coding' Apps (using Replit, ChatGPT, Upwork)
Billy Howell shares his strategy for making money by building and selling custom web applications using AI tools like Replit. He demonstrates the process by finding projects on Upwork, creating a product requirements document with ChatGPT, and using Replit to automatically generate a functional web application. Billy explains that this approach is less risky than building SaaS products because it validates demand before significant development work.
Timestamps:
00:00 - Intro
02:19 - Searching for App Ideas on Upwork
11:04 - Using ChatGPT for PRD Creation
12:22 - Why choose Replit for Development
15:15 - Building Prototype with Replit
19:53 - Areas of Concern when building with AI coders
23:30 - Earning Potential on Upwork
27:55 - The process for selling these Apps
32:03 - Comparing Different Business Models
35:40 - Huge opportunity: Unbundling SaaS
37:44 - Testing App
39:39 - How to standout on Upwork
40:35 - Integrating v0 UI to Replit
Key Points
• Billy Howell explains his method of "vibe coding" - using AI tools like Replit to quickly build and sell custom web applications
• The process involves finding clients on Upwork who need solutions, creating a prototype, and selling it before building the complete app
• Billy demonstrates how to use Repl.it with AI assistance to rapidly build a case management system for a nonprofit
• The approach focuses on creating simple CRUD (Create, Read, Update, Delete) applications rather than complex systems
1) The "Sell First, Build Later" Framework
Billy's #1 rule: Find someone to BUY your app BEFORE you build it.
Most developers get this backward - they build something cool then struggle to find users.
The secret? Don't market. SELL.
How? Look for people ALREADY trying to pay for solutions
2) Upwork Gold Mining Strategy
Billy's exact process:
• Search Upwork for jobs mentioning expensive SaaS tools (Airtable, HubSpot, etc)
• Look for simple CRUD apps (data entry, visualization)
• Build a quick prototype in Repl.it
• Send a Loom video demo to potential clients
His first sale? $750 replacing an Airtable solution!
3) The Vibe Coding Tech Stack
Billy's weapons of choice:
• Replit for rapid prototyping (zero setup friction!)
• ChatGPT to format requirements into PRDs
• V0 for beautiful UI mockups
• ShadCN components for clean interfaces
The magic combo: Feed requirements to Replit + "build me this app" = working prototype in MINUTES.
4) What to Avoid When Vibe Coding
Not all projects are created equal! Watch out for:
• Payment processing (risky)
• DocuSign integrations (complex)
• Calendar functionality (AI struggles with time zones)
• Anything changing data in other apps
Start with simple CRUD apps that store and display information.
5) The Real Money-Making Model
Billy's approach isn't just about one-off projects:
• Initial build: $750-2,500
• Charge for hosting
• Recurring revenue from feature requests
• Get referrals to similar businesses
One recent client is now reselling his solution to other companies in the same industry!
6) Why This Beats Building a SaaS
Building a traditional SaaS = "nightmare money pit" according to Billy.
With vibe coding consulting:
• De-risk by getting paid upfront
• Learn across multiple projects
• No marketing costs
• Discover validated problems
• Build a portfolio of solutions
Six figures on Upwork is VERY doable.
7) The 60-Second Sales Pitch
Billy's exact closing technique:
• Find job posting
• Make mockup in V0 or Replit
• Record 1-minute Loom: "I'm Billy, I make apps. I know you wanted Airtable, but I made this custom for you."
• Personalize with company name
• Send and repeat
Simple. Effective. PROFITABLE.
The future of coding isn't about knowing every framework—it's about SOLVING PROBLEMS quickly.
Anyone can do this with the right tools and approach.
Notable Quotes:
"The number one thing is how to sell an app that you've built... And the secret is not to market. It's just to sell it." - Billy Howell
"We start, we need to find someone to buy the app before we build it. That's where most people get this wrong, is they build something and then try to sell it or try to get users." - Billy Howell
LCA helps Fortune 500s and fast-growing startups build their future - from Warner Music to Fortnite to Dropbox. We turn 'what if' into reality with AI, apps, and next-gen products https://latecheckout.agency/
BoringAds — ads agency that will build you profitable ad campaigns http://boringads.com/
BoringMarketing — SEO agency and tools to get your organic customers http://boringmarketing.com/
Startup Empire — a membership for builders who want to build cash-flowing businesses https://www.startupempire.co
FIND ME ON SOCIAL
X/Twitter: https://twitter.com/gregisenberg
Instagram: https://instagram.com/gregisenberg/
LinkedIn: https://www.linkedin.com/in/gisenberg/
FIND BILLY ON SOCIAL
X/Twitter: https://x.com/billyjhowell
Youtube: https://www.youtube.com/@billyjhowell
