For people who control advertising spend

Last-click from one channel is not a view of the mix.

Google, Meta, TikTok, and TV each report their own version of performance. You cannot see attribution across all of them at once — so the people who move the budget are still deciding with incomplete evidence.

Monthly subscription · Launch cohort $1,299/month $299/month

The problem

You cannot see advertising attribution across all channels at once.

Last-click and in-platform ROAS credit the channel that reports them. They miss lagged effects, overlapping campaigns, and anything that did not get the final click.

01 — Each platform tells its own story

Google, Meta, and the rest optimize for themselves. No independent read of how the mix works together.

02 — Last-click over-credits the closer

Brand and prospecting look weak. Search and retargeting look strong. The budget follows the report.

03 — The next dollar is still a guess

Raising, cutting, or holding a channel is a P&L decision most teams still make without a cross-channel model.

The solution

One view of the mix — then a clear next move.

12Fifteen estimates how channels contribute to sales together, not how each platform scored itself. Then it shows what to increase, decrease, or hold — every month.

See contribution, not last-click

Sales and owned media in one place, with a modeled read of which channels actually move revenue.

Know what to do next

Recommended mix changes, with room to test a larger or smaller total before you commit.

Keep measuring as you spend

A monthly subscription you live in — refresh, track, and stay in the decision. Not a one-off deck.

How easy it is

You already have the data. We run the model.

No data-science team required. Send spend and sales; we return a decision-ready mix you keep using.

01 — Upload spend and sales

Weekly or monthly media spend by channel, plus sales. Promotions and holidays help if you have them.

02 — We fit the mix model

Incrementality across channels — including lagged effects and diminishing returns.

03 — You decide, then you stay

Move the mix, then come back next month. Built for a cadence, not a one-time report.

A monthly relationship

Pay monthly. Keep using the mix as the plan moves.

For CMOs, marketing directors, and performance leads who own the budget. Not a project that ends when the first report lands.

Marketing leaders Performance & growth Brand + media Ecommerce & DTC Consumer brands

Every cycle

Upload updated spend and sales. The model is rebuilt for the market you are actually in.

Continuous interaction

Dashboard and simulator to use — not a PDF you open once. Shift the mix, then spend.

A partner, not a one-off

A monthly fee for model, refresh, support, and a view you come back to.

Start the monthly subscription

Stop allocating spend from a single platform’s last-click.

Subscribe monthly. Keep a live read of the mix — and a next move — as you keep spending.

Apply for Launch Access

$1,299/month $299/month launch cohort