Public Group is Greece’s leading omnichannel consumer-electronics and lifestyle retailer, operating more than 60 Public stores across Greece and Cyprus and a fast-growing e-commerce marketplace (public.gr).
Its assortment spans tech & electronics, books and gaming, home appliances, and lifestyle goods, making it a one-stop destination for millions of shoppers.
With annual revenue exceeding €500 million and a model that blends large-format stores, local logistics, and a high-traffic online marketplace, Public is a prime example of a retailer balancing heavy seasonal advertising with ambitious growth targets.
The Challenge
- Despite larger budgets, ROAS targets were consistently missed.
- Campaign efficiency lagged expectations, signalling traffic-quality issues.
- Unpredictable spikes in CPA suggested that a significant portion of spend was being wasted on non-converting clicks which made forecasting difficult.
The Tapper Solution
Public Group deployed Tapper’s real-time ad-fraud protection quickly and without disrupting day-to-day operations, allowing the team to start seeing results right away. Tapper automatically identified and blocked invalid clicks across paid media campaigns, filtered spend toward genuine users, and delivered continuous reporting to help stabilise CPA, improve ROAS, and support confident scaling.
Key Results
- 2× ROAS improvement
- 30% lower CPA
- 26% improvement in conversions
- Greater budget certainty and the ability to scale spend during peak seasons with confidence.
Internal Impact
Tapper’s transparent reporting, accessible through a self-serve dashboard, gave Public Group stronger, continuous evidence when presenting budget plans to senior management.
Smarter Growth, Sustainable Scale
By blocking invalid traffic before it drained budgets, Public Group turned ad-fraud protection into a performance driver. Tapper ensures every euro of ad spend reaches real shoppers, lowering CPA, boosting ROAS, and enabling sustainable ecommerce growth.
