Drift — re-engineering the channel mix

Drift is a DTC subscription brand that had grown fast on cheap acquisition and was now watching that cheap acquisition disappear. Costs were climbing across every channel, and the team was reacting campaign by campaign with no shared view of which channels were actually worth scaling. We rebuilt the strategy around the only number that matters in subscription — the relationship between what a customer costs and what they're worth — and cut acquisition cost 41%.

Overview

Subscription economics are unforgiving: a small gap between acquisition cost and lifetime value, multiplied across thousands of customers, decides whether the business compounds or quietly bleeds. Drift had lost sight of that gap. Spend was spread across channels by habit, creative was refreshed on gut feel, and the team measured success by cost per acquisition in isolation — a number that flattered the cheap channels and punished the ones building the most valuable customers.

We reframed the entire engagement around contribution to lifetime value, then sequenced the channel mix so each tier of spend did the job it was actually good at. The result wasn't a single clever campaign; it was a system that knew where the next euro belonged.

The challenge

Acquisition cost was rising quarter over quarter, and the channel mix was guesswork dressed up as strategy. Nobody could say whether the brand's strongest customers came from paid social, search, influencers or referrals — so budget was allocated evenly out of caution, starving the channels that drove retention and over-feeding the ones that drove cheap, churn-prone signups. Creative was produced in volume but tested informally, which meant winners were never properly scaled and losers lingered. The brand was working harder each month to stand still.

Our approach

We treated the channel mix as an engineering problem with a clear objective function: maximise lifetime value per euro of acquisition, not minimise headline cost per acquisition. That single shift in the goal reordered almost every decision that followed.

Map the goal, then the channels

We mapped each channel to the customer it actually produced — not the signup, but the retained, paying subscriber six months later — and ranked channels by contribution to lifetime value rather than front-loaded cost.

Sequence and test with discipline

We sequenced spend so prospecting, retargeting and retention each had a defined role and budget, and we replaced ad-hoc creative refreshes with a disciplined testing calendar where every variant had a hypothesis and a clean read.

• Goal mapping tied to lifetime value, not headline acquisition cost
• Channel sequencing across prospecting, retargeting and retention
• A structured creative-testing calendar with clean, defensible reads
• Four channels orchestrated to one shared efficiency target
• Monthly reallocation toward the highest-value sources

The results

Reordering spend around lifetime value did two things at once: it pulled acquisition cost down as wasteful spend was cut, and it pushed customer value up as budget concentrated on the channels that produced loyal subscribers. Four channels now run as one orchestrated system rather than four competing line items, and the testing calendar means every month's winners feed the next month's plan.

Sharp, calm and relentlessly measured. Our cost per acquisition fell while the value of every customer we won climbed.

— Sofia Marchetti, Brand Lead