Test your idea before you build it
Describe your business. AI builds a realistic scenario. Make real decisions and get a strategic report backed by community data from other founders.
Try Sandbox4 Steps to Test Your Idea
From idea to strategic report in under 15 minutes.
Describe Your Business
Pick your business type, stage, and industry. Then tell us what you're building in your own words. The more context, the better the scenario.
AI Builds Your Scenario
Our AI analyzes your context and generates a realistic business scenario with decisions tailored to your situation. Not generic advice — scenarios built from your specific business, stage, and industry.
Make Real Decisions
Each round presents a decision that founders like you actually face. Hiring, pricing, fundraising, pivoting, marketing — the hard calls that make or break a business.
Example
“Should I hire a senior dev at $150K or outsource to an agency?”
Community data
“312 founders faced this. 58% hired in-house.”
Get Your Strategic Report
After your run, you get a full report: KPI analysis, decision breakdown, what other founders did differently, and concrete next steps. Take it with you when you go build the real thing.
Built for Every Business Type
Not just tech startups. Local businesses, creators, agencies, and franchises all face hard decisions.
Startup
Pre-seed to Series A. Fundraising, product-market fit, hiring your first 10 people, scaling decisions.
Local Business
Brick-and-mortar or service area. Lease vs buy, hiring staff, local marketing, second location timing.
Creator
Content creators and solopreneurs. Monetization, audience growth, sponsorships, productizing your skills.
E-commerce
DTC and online retail. Inventory, suppliers, ad spend, fulfillment, marketplace vs own site.
Agency
Service businesses. Pricing models, hiring vs contractors, client concentration, productizing services.
Franchise
Franchise operators. Territory selection, multi-unit economics, staffing, franchisor relationships.
Community Intelligence
Every run adds anonymized data to the community database. The more founders play, the smarter the insights get.
You run a scenario
Test your SaaS idea, make 10 decisions about pricing, hiring, and growth.
Data is anonymized
Industry, stage, choice, and outcome. Nothing personal. Just the decision patterns.
Next founder benefits
“423 founders chose A. Here's what happened.” Real data, not generic advice.
What You Get After Each Run
Not just a score. A strategic report you can actually use.
KPI Dashboard
See how your decisions affected cash, revenue, customers, burn rate, and team size across every round.
Decision Analysis
Each decision you made, what the AI expected, and what actually happened. Learn where your instincts were right and wrong.
Community Comparison
How your choices stack up against other founders in the same industry and stage. See what the majority chose and why.
Next Steps Report
Concrete action items based on your run. What to prioritize, what to watch out for, and what other founders wish they'd done differently.
Pick Your Plan
Start free. Upgrade when you need more runs or deeper insights.
Free
$0
1 run per week. 10 AI interactions per run. Free text input — describe your own idea. Enough to try and see what happens.
Start FreeSandbox
$15/mo
5 runs per week. Sandbox mode to test YOUR idea with free text input. Full community insights and strategic reports.
Start SandboxPro
$39/mo
20 runs per week. 20 AI interactions. Free text input, scenario branching, founder filters, full analytics and export.
Start ProReady to test your idea?
15 minutes, zero risk. Find out what other founders learned the hard way.
Start Your First Run