Validate Before You Write the First Line of Code
Not after deployment
Sprig embeds surveys in live products to capture in-the-moment feedback. TestSynthia captures market reactions before products exist. No codebase. No users. No SDK integration. Just 1M+ stateful AI personas and $2.99 to start.
Compare with Sprig
time to first result
demo run
stateful personas
The Comparison
In-product feedback vs. pre-build validation.
TestSynthiaThe Catch-22
In-product tools need a product first.
The Integration Tax
Sprig requires SDK installation, event tracking setup, and code changes. For pre-launch teams, that's engineering time spent on feedback infrastructure instead of product development.
The Traffic Paradox
Sprig needs users to generate insights. But if your product is wrong, you're collecting feedback on a broken foundation. You optimize failure instead of preventing it.
The Reactive Blindspot
In-product feedback tells you what's wrong with what you built. It doesn't tell you what you should have built instead. TestSynthia answers the strategic question before the tactical one.
When to Choose
Which Tool Fits Your Timeline?
Use Both If...
Validate concepts with TestSynthia before building. Deploy with Sprig to optimize the live experience. Strategy first, optimization second.
Choose Sprig If...
You have a live product with active users and need to optimize onboarding, feature adoption, and in-product experience through contextual micro-surveys.
Choose TestSynthia If...
You're pre-launch, planning your roadmap, or testing new concepts. You need strategic validation before investing in development and instrumentation.
The difference
Build then optimize vs.
validate then build.
Before
Code, deploy, instrument, collect feedback
After
Validate concept, build winner, optimize later
Pricing
Simple pricing. No SDK required
Validate before you instrument
TestSynthia
- ✓1M+ stateful AI personas
- ✓500 responses per month
- ✓Priority generation (~10 min)
- ✓Top-ups available
- ✓No contract
Sprig
- ✓In-product micro-surveys
- ✓SDK integration
- ✓Event-based targeting
- ✓User analytics
Pricing estimated at ~$175/mo based on historical data. Enterprise plans available. Requires engineering integration.
Frequently asked questions
Compare with other tools
See how TestSynthia stacks up against more market research platforms
Hotjar needs a live website with real visitors to show heatmaps and recordings. TestSynthia needs nothing — 1M+ stateful AI personas tell you if your concept, pricing, and messaging will work before you write code or buy ads. $2.99 to start.
Maze tests interactive prototypes with real users. TestSynthia tests your concept with 1M+ AI personas before you write a line of code. Get directional feedback in 10 minutes, not days.
Don't instrument failure.
Validate first.
The best-instrumented bad product is still a bad product. Test the concept before you install the SDK.