Public Group lowered CPA by 30% while doubling ROAS with Tapper
Dimitris Bakas
Senior Performance Marketing, Public Group
With Tapper's protection we were able to identify and block invalid clicks in real time. The impact on our campaign efficiency was immediate, allowing us to hit ROAS targets we hadn't reached before.
2x
ROAS
30%
Lower CPA
26%
More Conversions
About Public Group
Public Group is Greece's leading omnichannel consumer-electronics and lifestyle retailer operating 60+ stores across Greece and Cyprus with a thriving e-commerce marketplace (public.gr). The company generates annual revenue exceeding €500 million across tech, electronics, books, gaming, home appliances, and lifestyle goods.
The Challenge
- ROAS targets consistently missed despite increased advertising budgets
- Campaign efficiency underperformed expectations, indicating traffic quality concerns
- Unpredictable CPA spikes suggested wasted spend on non-converting clicks, complicating financial forecasting
The Solution
Public Group implemented Tapper's real-time ad-fraud protection across paid media campaigns. The platform automatically identified and blocked invalid clicks, redirected spending toward genuine users, and provided continuous reporting for CPA stabilization and ROAS improvement without disrupting operations.
Key Results
- 2× ROAS improvement
- 30% lower CPA
- 26% improvement in conversions
- Enhanced budget certainty enabling confident seasonal spending scale-ups
Internal Impact
Tapper's self-serve dashboard provided transparent, accessible reporting that strengthened Public Group's budget presentations to senior management.
Smarter Growth, Sustainable Scale
By eliminating fraudulent traffic drain, Public Group transformed ad-fraud protection into a performance multiplier, ensuring every euro reaches legitimate shoppers while supporting sustainable e-commerce growth.
Ready to See Similar Results?
Start protecting your ad campaigns with Tapper's real-time fraud detection and see immediate improvements in CPA and ROAS.
