

Client: Portfolio Tracking SaaS
Market: Western Europe
Channels: Programmatic Display & Mobile Web
Primary KPI: Paid Subscription Conversion
The Challenge
The client offers a premium portfolio tracking platform for retail and semi-professional investors. Western Europe is a strong market for this type of product — but it’s also demanding. Users are financially literate, privacy-conscious, and not easily convinced to pay for another subscription.
The objective wasn’t just traffic or free trials. It was simple: generate paid subscriptions at a strong, sustainable return on ad spend.
Our Approach
We didn’t treat Western Europe as one single audience.
Different countries respond differently to fintech messaging, so we structured the campaign around market maturity and behavioral patterns. Germany and the Nordics, for example, showed stronger demand for analytics-heavy messaging. France and Benelux responded better to clarity, simplicity, and automation benefits.
Budgets were continuously shifted based on actual paid conversion data — not just clicks or trial starts.
On the device side, we quickly saw that serious portfolio users preferred Desktop when evaluating dashboards and features. So we leaned into high-performing desktop environments, while refining mobile web to support users already familiar with the product.
We also filtered aggressively:
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Outdated browsers
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Low-resolution screens
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Placements generating engagement but no paid upgrades
This alone improved efficiency significantly.
Creatively, we tested multiple angles:
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Performance tracking
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Automation
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Consolidated reporting
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Data security
Instead of running static messaging for months, we rotated creatives based on real subscription performance. The strongest variants weren’t always the flashiest — they were the clearest.
The 7-Month Build-Up
It’s important to say this clearly: these results were not instant.
It took seven months of structured optimization to refine geo allocation, device mix, bidding logic, and creative direction. We tested, cut, scaled, and re-tested continuously.
The 431% ROAS shown in the screenshots reflects one month’s performance, achieved after this seven-month optimization cycle. It represents a mature, stabilized setup — not a short-term spike.
The Results
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431% ROAS in a single month
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Consistent paid subscription growth
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Programmatic established as a predictable, profitable acquisition channel
Why It Worked
We focused on what actually matters: paid conversions.
By treating each Western European market differently, prioritizing the right devices, and refining messaging based on real subscriber behavior, we built a campaign that didn’t just generate interest — it generated revenue.
And we gave it the time required to get there.