Planetarium vs Evidenza
Choose Planetarium to test consumer ads, messages and websites yourself, today. Choose Evidenza for done-for-you B2B buyer research and a go-to-market plan.
By the Planetarium team · We publish this page and sell in this category
Key takeaways
- Planetarium: half of studies in about 34 seconds. Evidenza: results in 72 hours (full service).
- Planetarium starts at $99 a month, first test free. Evidenza publishes no price.
- Evidenza reports 88% similarity in 100+ validations, from its own test. Planetarium was right 87 times in 100 when it names a winner (575 of 660). Different tests, so not one ranking.
What is Evidenza?
Synthetic surveys and interviews of hard-to-reach business buyers, delivered as a go-to-market plan. It is built for B2B marketing and sales teams, from startups to the Fortune 500.
Thousands of synthetic personas per category with job title, company size and industry; you describe the audience, no customer data needed.
How do Planetarium and Evidenza compare?
Row by row, from each company’s own pages. Where one publishes nothing on a point, the row says so.
What it does
Planetarium
Test ads, messages, surveys and live websites on audiences built from real people observed online; their answers are simulated.Evidenza
Synthetic surveys and interviews of hard-to-reach business buyers, delivered as a go-to-market plan.Built for
Planetarium
Agencies, brand and marketing teams, research and insights, product and growth teamsEvidenza
B2B marketing and sales teams, from startups to the Fortune 500Where the audiences come from
Planetarium
Audiences built from people observed on social platforms, grouped by what they engage with; their answers are simulatedEvidenza
Thousands of synthetic personas per category with job title, company size and industry; you describe the audience, no customer data neededHow you buy
Planetarium
Self-serve by card: Starter $99, Pro $399, Growth $999 a month. First test free.Evidenza
Full service, priced per scope after a demo. Self-service is listed as coming soon.Time to a result
Planetarium
Half of studies in about 34 secondsEvidenza
Results in 72 hours (full service)Published accuracy
Planetarium
Right 87 times in 100 when it names a winner (575 of 660)own test1,500 published news-headline A/B tests (Upworthy, 2013 to 2015), held out and scored once (October 2026). It named a winner on 660 and called the other 840 too close. Headlines onlyEvidenza
88% similarity in 100+ validationsown testTheir homepage, which describes it as the average match between synthetic and traditional researchAPI
Planetarium
API, plus MCP for AI agents, on Growth and EnterpriseEvidenza
Not describedRun it yourself
Planetarium
YesEvidenza
Coming soonReal people take part
Planetarium
No, simulated answersEvidenza
No, simulated answers
From Evidenza's own pages, listed under Sources, and ours. Read October 27, 2026.
How accurate is Evidenza?
88% similarity in 100+ validations. The figure comes from its own test: their homepage, which describes it as the average match between synthetic and traditional research.
Planetarium was right 87 times in 100 when it names a winner (575 of 660), on 1,500 published news-headline A/B tests (Upworthy, 2013 to 2015), held out and scored once (October 2026). It named a winner on 660 and called the other 840 too close. Headlines only. The full record is on the accuracy page.
When is Evidenza the better choice?
- Your buyers are business decision-makers: buying committees, specialists, the C-suite.
- You want a finished go-to-market plan, done for you.
- You want positioning, segmentation and creative modules from one supplier.
When should you choose Planetarium?
- Your audience is consumers, creators' followers or interest communities.
- You want to run tests yourself today rather than wait 72 hours.
- You want to test a live website or an ad with simulated visitors and viewers.
How much does Evidenza cost?
Full service, priced per scope after a demo. Self-service is listed as coming soon.
Planetarium is self-serve by card: Starter $99, Pro $399, Growth $999 a month. First test free. See pricing.
How was this page made?
We publish this page and sell in this category. Every claim about another company comes from that company’s own public pages, or a paper or partner report it cites, read on October 27, 2026, and each is listed below. Where a company publishes nothing on a point, the page says so; that does not mean it cannot do it.
Each company measures accuracy its own way, on its own tests, so the figures are shown side by side but never ranked as one league table. We did not trial the other products. Our own figures are the ones on our pricing and accuracy pages. Something out of date? Tell us through the contact page and we will correct it.
Frequently asked questions
Why not just ask a general AI model?
How can Planetarium show a price from $99 when most here do not?
Can these accuracy figures be compared with each other?
Should synthetic research replace real people?
Sources
- Evidenza, Homepage (opens in a new tab). Read October 27, 2026.
- Evidenza, FAQs (opens in a new tab). Read October 27, 2026.
- Evidenza, About (opens in a new tab). Read October 27, 2026.