Know if your idea has legs in 10 minutes
Most startups fail because they solve the wrong problem. TestSynthia lets you describe your concept, choose realistic personas who match your target customer, and get directional feedback on purchase intent, problem-solution fit, and pricing acceptance before you invest months in development.
Category
Idea
Steps
4
Panels
1
Time
10 min
A founder in Denver had an idea for an AI-powered personal finance coach for couples. Before hiring designers or engineers, she ran a simulation with 500 consumer personas aged 28-45 in dual-income households. She discovered that while 71% found the concept appealing, only 19% would pay $20 per month. The feedback revealed couples wanted shared budget visualization and bill-splitting automation more than AI coaching advice. She pivoted the concept to a shared finance dashboard for couples, dropped the AI coach branding, tested $8.99 per month, and raised simulated purchase intent to 58% before writing a single line of code.
She assumed users cared most about AI coaching advice - they actually wanted shared budget visualization
Her initial $20 per month price point killed demand among her core demographic
Customer interviews with 10 friends gave biased, overly positive feedback
Traditional surveys would have cost $3,000+ and taken 3 weeks to field
Described the concept
She wrote a 3-sentence description of her AI finance coach, including the problem (couples fight about money), the solution (AI-powered budget advice and bill splitting), and the price ($20 per month).
Selected dual-income personas
She filtered consumer personas aged 28-45, married or partnered, dual household income $80K-$200K, and interested in personal finance apps.
Ran 500-response simulation
TestSynthia generated 500 unique responses with purchase intent scores, willingness-to-pay curves, and verbatim feedback on what features mattered most.
Pivoted before building
Based on the data, she built a shared dashboard, dropped the AI coach feature, and tested $8.99. Simulated purchase intent jumped from 19% to 58%.
“How interested are you in a shared finance dashboard designed specifically for couples?”
“What price would you pay monthly for a service that tracks shared bills and budgets?”
“Which feature matters most: AI spending advice, shared budget visualization, or automatic bill splitting?”
“What would make you recommend this app to another couple you know?”
The founder discovered that shared budget visualization was 3x more important than AI coaching advice among her target demographic. This single insight changed her entire product roadmap and saved an estimated $40K in development costs.
Discovered the real feature users wanted (shared dashboard) vs what she assumed (AI coaching)
Found the optimal price point ($8.99) that 3x'd purchase intent vs her guess ($20)
Avoided $40K+ in design and engineering costs for the wrong MVP
Got directional certainty in 10 minutes for less than a coffee ($2.99)
Use Case
Validate Your Startup Idea Before You Build
Steps
4 steps
Panels
1 recommended
Time
10 minutes
If you're struggling to know whether your product idea will succeed, using TestSynthia is the right decision.
Results in minutes.