Know what’s
causing growth.
Know what to do next.
Your dashboards count conversions that would’ve happened anyway. Stella brings your different ways of measuring together, so you know what’s actually working and what to do about it.
Run a real holdout free · No credit card · Used by teams leaving legacy measurement vendors
Trusted by growth teams who left enterprise measurement vendors
With Stella, you know.
What to scale.
The channels and campaigns creating additional growth, not the ones reporting it.
What to cut.
Where you are spending without creating a single extra sale.
How much to spend.
Where there is still room to grow, and where the next dollar stops working.
What attribution missed.
The channels customers remember that no pixel ever saw.
What actually caused it.
Marketing impact separated from what would have happened anyway.
What to do next.
A budget decision you can defend, not another report.
First touch or last touch is the wrong argument.
Both measure correlation, and correlation is the ceiling. What your customers remember, and what your ads actually caused, are different questions. No attribution model answers either one.
Every touchpoint the pixel can see, first ad to checkout.
The buyer tells you directly, including the channels no pixel records: TV, podcast, a friend.
A controlled test. The only one of the three that proves cause, which is why the other two calibrate against it.
Each is a third of the answer. Stella answers all three.
Three lenses, one place. Otherwise you spend the week reconciling dashboards instead of moving budget.
Know where the next dollar stops working.
Every channel has a point where more spend stops buying more growth. Stella shows you where that point is, per channel, so you move budget off the flat part of the curve and onto the part that still pays.
Know what your ads caused, today.
Not a number from last quarter. Stella keeps the read current as creative fatigues and spend moves, so the number you act on is the one that is true this week.
Illustrative.
Know what a different budget would do.
Move the same budget toward the channels with room left, and see what it returns before you commit it.
Connects to what you already run
and more
and more
and moreHave us run it, or run it yourself.
Most clients start with the consultancy. The same platform is also self-serve, from $6,000 down to free.
The consultancy isn't for everyone. There's a plan for every budget.
Same platform, run by you: $6,000, $3,000, $750, or free.
- ✓One media mix model and one holdout analysis every year
- ✓Upload a spreadsheet, get a real model back. No connectors to set up.
- ✓The same models we run for enterprise brands, not spreadsheet math
- ✓Ask questions about your results in plain English
- ✓Multi-Touch Attribution: see every touchpoint that leads to a sale
- ✓Ask buyers how they found you, right after they check out
- ✓Connect up to 5 sources (Shopify, Amazon, Meta, Google, TikTok) and stop pulling reports by hand
- ✓One holdout test and one media mix model every year, on data you upload
- ✓Ask questions about your results in plain English
- ✓Everything in Starter
- ✓Always-On Incrementality: a live view of how incremental every campaign is, updated daily, with no test to run
- ✓Unlimited holdouts and media mix models, run straight off your connected data, region by region. Up to 7 sources, no more uploads.
- ✓See where the next dollar should go, and where a channel is already saturated
- ✓Ask your data questions from Claude, ChatGPT and your other AI tools
- ✓Everything in Professional
- ✓We send incremental conversions back to Meta, Google, TikTok and more, so their algorithms optimize for real profit instead of last click
- ✓All of your Stella data delivered into your own warehouse
- ✓Unlimited data sources
The questions marketers actually ask.
What will I actually know that I do not know today?
Which channels and campaigns are creating additional sales, which ones are taking credit for sales you would have made anyway, how much room each channel has left before returns flatten, and what your attribution is missing entirely. Then what to do about each one.
Do I need to know which measurement method I need?
No. Bring the decision you are trying to make and we will work out what evidence it needs. That is what the first call is for.
Do I need to be technical to use Stella?
No. Stella guides you step by step, and you can chat with it in plain language. If you would rather not touch it at all, our managed engagement does the holdouts, design, analysis, and reporting for you.
How much does Stella cost?
Free to start, then $750, $3,000 and $6,000 a month depending on how much of the loop you want running. Managed engagements are scoped and priced to what you need. The plans above show what is in each one.
Know what’s causing growth.Know what to do next.
Start free on your own data, or have our team run the whole thing for you.