Buying a vibe coded app or template: what to check before you pay

Buying something someone else has already built is one of the most sensible shortcuts going. You get a working product today instead of an estimate for next month. You can see it before you pay for it. And with AI tools, there’s suddenly a lot of good work out there.

There’s also a lot of work that only looks good. AI is very good at making things look finished. This guide is the ten minutes of checking that tells you which kind you’re looking at.

Decide what you’re really buying

Be clear with yourself first, because each option needs different checks:

• A template: a starting point you’ll change and make your own. Check the code quality and the setup instructions.
• Source code: a working app you’ll run yourself. Check that it runs, that it’s secure, and that you can maintain it.
• A whole app with users: a small business. Check everything above, plus the users, the income and the accounts that come with it.

The five-minute demo test

Before anything technical, use the live demo like a real user would. And then like an annoying one.

1. Do the main job end to end. Sign up, add something, change it, delete it.
2. Open it on your phone. Is it actually usable, or just technically visible?
3. Try to break it. Leave fields empty, paste in a novel, double-click every button, press back halfway through.
4. Refresh at every step. Does your data survive, or was it only ever in the browser?
5. Look at the empty states. A new user sees no data. Does the app handle that gracefully, or show a blank chart and a mystery error?

If the demo fails the test, the code behind it will too.

Questions to ask the maker

A good maker will answer these quickly and without getting defensive:

• “What did you build it with, and what would I need to run it?” You want the tools, the services and any monthly costs, listed clearly.
• “What’s the part you’d improve if you had another week?” Everyone has an answer. “Nothing” is a worrying one.
• “How is each user’s data kept separate?” You’re listening for access rules in the database itself, not “the app hides it”.
• “What help do I get after buying?” Setup help, bug fixes, updates, and for how long.
• “Can I see the code before I commit?” A short look at a few files, or a walkthrough on a call, is a reasonable request for anything expensive.

What to look for in the code

You don’t need to be a developer for most of this. Open the project and look for:

• A clear README that explains how to run it. If the maker didn’t write one, they probably didn’t test a fresh setup either.
• No passwords or keys in the files. Search for words like “key”, “secret” and “password”. Finding real values is a serious red flag.
• A sensible structure. Folders with clear names, not one enormous file and forty versions of it called “final2”.
• Recent activity. Code that hasn’t been touched in a long time may not work with today’s versions of the tools it depends on.

If you’re not technical and it’s a big purchase, ask an AI assistant to review it for you, or pay a developer for an hour of their time. Point them at our vibe coding security checklist.

Check the licence

Read what you’re actually allowed to do:

• Can you use it for one project or many?
• Can you use it for client work and charge for it?
• Are you buying exclusive rights, or will the same template be sold to others?
• Who owns the design, images and fonts? Some of those may have their own licences.

Pay so that you’re protected

Never pay a stranger upfront for something you can’t yet see working. Use a payment method that holds the money until you’ve received what you paid for and checked it.

On Vibers, makers decide how each project is offered: to look at only, as a free download, or as a paid download. Paid downloads are paid in USDC, and the money sits in an escrow contract until you confirm you’ve got what you paid for. If something’s wrong, you raise it before the review window closes and a Vibers admin looks at the evidence. If all is well, the maker gets paid and you get on with your life.

When to build instead

Buying isn’t always right. If what you need is mostly unique to your business, if the template would need rebuilding more than tweaking, or if you’d be fighting its design at every step, you’re better off getting it built for you. Our guide on hiring a vibe coder covers how to do that without getting burned.