checkmyvibecode.com
checkmyvibecode.com
A few years ago, building an app meant hiring developers, waiting months, and spending tens of thousands of euros.
Today you can build a working app in a weekend for the price of a few coffees.
But "a few coffees" isn't a real number. So let's break down what it actually costs to build an app with AI in 2026 – the tools, the hidden fees, and real examples at every budget level.
You can build a functional app with AI for anywhere between 0 and 100 euros per month, depending on what you're building and which tools you use.
Most vibe coders spend between 20 and 60 euros per month across their tools. That's it. No developer salaries. No agency fees. No six-month timelines.
But the real cost depends on a few things we'll break down below.
This is your main expense. The tool that actually builds your app.
Cursor – around 20 dollars per month for the Pro plan. One of the most popular choices for vibe coders.
Claude – Claude Pro is around 20 dollars per month, with higher tiers for heavier use. Excellent for reasoning through complex builds.
OpenAI Codex – available through ChatGPT plans starting around 20 dollars per month.
Replit – has a free tier to start, with paid plans around 20 to 25 dollars per month that include hosting and AI features built in.
v0 by Vercel – free tier available, paid plans for heavier UI generation.
For most people, one tool at around 20 dollars per month is enough to start. Some builders use two or three tools together, which pushes the cost to 40 to 60 dollars monthly.
Your app needs to live somewhere online.
Free options: Vercel, Netlify and Replit all have generous free tiers that work perfectly for small projects and MVPs. Many apps never need to pay for hosting at all.
Paid hosting: Once you have real traffic, expect to pay 5 to 25 dollars per month depending on your platform and usage.
If your app stores data, you need a database.
Supabase – free tier covers a lot. Paid plans start around 25 dollars per month once you outgrow it.
Firebase – pay as you go, often free for small projects.
Most early projects run entirely on free database tiers.
A custom domain costs around 10 to 15 dollars per year. Not per month – per year. This is one of the smallest costs you'll have.
This is where people get surprised.
If your app uses AI features itself – like a chatbot or content generation – you pay per use through APIs. This can range from a few cents to hundreds of dollars per month depending on how many users you have and how much they use it.
This is the cost that scales with success. A popular app with heavy AI features can run up real API bills.
If your app sends emails – confirmations, newsletters, notifications – you need an email service. Resend, SendGrid and similar tools have free tiers, then charge based on volume.
If you charge money, payment processors like Stripe take a cut of every transaction – typically around 3 percent plus a small fixed fee. This isn't upfront cost, but it eats into revenue.
The biggest hidden cost. AI makes building faster, but it doesn't make it instant. Learning to prompt well, iterating, fixing bugs, and polishing takes real hours. Your time has value even when you're not paying anyone else.
A simple web app built with Replit's free tier, hosted for free, using a free database. Total cost: nothing but your weekend. This is how most vibe coders start.
One AI coding tool at 20 dollars, a paid database tier, a custom domain, and an email service. This covers a real product with actual users.
Multiple AI tools, paid hosting that scales, API costs for AI features, email at volume, and payment processing fees. This is what it costs once your app has traction and real usage.
Start on free tiers. Almost every tool has one. Don't pay until you actually need to.
Use one tool well instead of subscribing to five. Master one AI coding tool before adding more.
Delay paid hosting until you have real traffic. Free tiers handle more than you'd think.
Watch your API usage. If your app uses AI features, monitor costs from day one. This is the expense that surprises people.
Don't buy tools you don't use. It's easy to subscribe to everything. Cancel what you're not actively using every month.
Here's the perspective that matters.
A traditional app built by an agency or developer costs anywhere from 10,000 to 100,000 euros and takes months. The same app, built with AI by one determined person, costs maybe 50 euros per month and takes a weekend to a few weeks.
That's not a small difference. That's a complete shift in who gets to build software.
The barrier isn't money anymore. It's knowing how to use the tools and having an idea worth building.
Building the app is only half the journey. Once it's live, it needs to be seen.
That's where CheckMyVibeCode comes in – a community platform where you can share your AI-built project, get real feedback, and get discovered by people who understand what you made. Post your project, tell the story of how you built it, and give it a permanent home.
→ Share your project at checkmyvibecode.com
Because you already did the hard part. Don't let it disappear into a folder.