The Customer
C6 is one of Brazil’s leading digital banks, offering personal and business accounts, credit and debit cards, loans, and payment solutions like Pix. Built for a mobile-first generation, the bank aims to democratize access to modern financial services through intuitive digital experiences.
The Challenge
C6 Bank wanted to accelerate its user acquisition efforts in Brazil while staying focused on user quality. Traditional ad channels were reaching saturation, and fraud risk remained a concern. AVOW was brought in to help drive incremental growth through mobile OEM advertising, while meeting strict performance targets.
Objectives:
• Acquire real, qualified users at scale
• Reduce fraud and ensure brand-safe traffic
• Reach new user segments beyond traditional platforms
• Maintain a low effective cost per account opened
• Prove incrementality of new UA channels
The Solution
AVOW developed a mobile OEM campaign tailored to C6’s goals, running exclusively on Xiaomi and OPPO devices. Through appographic and interest-based targeting, the campaign focused on users with relevant credit profiles. With placement-level optimization and a fraud-free setup, AVOW delivered a scalable and brand-safe strategy to acquire high-quality users beyond traditional channels.
Key strategies included:
✅ Appographic targeting to reach high-intent users
✅ Exclusive Xiaomi and OPPO mobile OEM access
✅ Placement-level optimization for performance efficiency
The Results
AVOW’s strategy helped C6 acquire over 100,000 installs per month, with more than 10,000 converting into qualified users. On average, 20,000 new accounts were opened monthly. The campaign outperformed internal benchmarks, with a 15% higher install-to-account-open rate and a 3× month-over-month increase in conversion rates during key scaling periods.
100K
Installs per month
10K
Qualified users monthly
22K
New accounts opened monthly
+15%
Higher install-to-account- open rate
3x
MoM growth in conversions
The Feedback
“AVOW helped us go beyond just acquiring users — they delivered high-quality leads that turned into real, active customers. Their targeting was incredibly precise, and the transparency throughout the campaign gave us full confidence. In a market as competitive as Brazil, having a partner like AVOW made a measurable difference.”
Giovanna Laporta
Performance Media Analyst, C6 Bank
