Validator is free. Help us keep it that way.
Opening a restaurant or café is one of the riskiest bets a person can make — and honest financial validation shouldn’t cost money you haven’t earned yet. That’s why every tool here is free: no paywall, no ads, no locked features. If Validator saved you from an expensive mistake (or confirmed a good one), you can help cover what it costs to run.
Servers & hosting
Keeping 145+ pages and the calculator fast, worldwide.
AI advisor
Every AI answer costs real API money — supporters keep it available.
Fresh benchmarks
Rent, labor, and food-cost data reviewed so your numbers stay honest.
One-time support
Any amount helps — pay what you want.
Secure checkout via Lemon Squeezy · you pick the amount
Monthly supporter
$12/month — steady support, extra thanks.
- ⭐ Supporter badge on your account
- 💛 Your name on this page (optional)
- 🤖 5× higher daily AI-advisor quota
- 📄 Watermark-free PDF exports
Cancel anytime · every core tool stays free regardless
Supporters Wall
Be the first name here 💛 — supporters who opt in get a permanent thank-you on this page.
Honest answers
Is Validator really free forever?
Yes. Every analysis tool — the wizard, sensitivity analysis, scenario comparison, financing check, exports — is free and stays free. This is a community project, not a freemium funnel.
What do supporters get?
Our sincere thanks, a supporter badge, your name on this page (if you want), and a higher daily AI-advisor quota — because every AI answer costs us real money. Nothing essential is ever locked.
Where does the money go?
Hosting and servers, the AI advisor API bill, and the hours spent keeping cost benchmarks current. Any surplus funds new features the community votes for.
Is this a donation to a charity?
No — it’s support for an independent tool. You’re buying the maker a coffee (or lunch), and you get supporter perks as a thank-you.
Haven’t validated your idea yet?
The best way to support us: use the tool and tell a friend who’s opening something.
Validate your idea — free