Oleg Shlyamovych

CEO & Co-Founder, CAS.AI — Mobile Ad Monetization & Game Publishing

“Building the independent ad mediation platform for 5,000+ apps worldwide”

About

Oleg Shlyamovych is the CEO and co-founder of CAS.AI, a mobile ad mediation and game publishing platform trusted by 5,000+ apps worldwide. With over 9 years of experience in mobile game development and ad monetization, Oleg has overseen the growth of CAS from a kids’ games studio (PSV Games, founded 2014) into a global publishing and mediation platform processing 1 billion+ monthly ad impressions.

Under his leadership, CAS.AI has published 200+ games with 5 billion+ total downloads, built an independent ad mediation SDK supporting 20+ networks and 150+ DSPs, and developed a publishing model that invests up to $1M/month in user acquisition. The company operates offices in Berlin, Kyiv, Dubai, Limassol, and Krakow with a team of 150+ professionals.

Oleg specializes in ad monetization strategy, hybrid bidding (waterfall + RTB), impression-level revenue data (ILRD), ROAS optimization, and data-driven game scaling. His practical approach combines deep technical knowledge with hands-on experience managing a portfolio of hundreds of live titles across every genre.

Oleg regularly speaks at international game industry events including White Nights Berlin, Games Gathering Kyiv, Google AdMob Summit Dubai, and Talents in Games. He shares insights on mobile monetization trends, UA economics, and the evolving ad tech landscape.

Areas of Expertise

Mobile App Monetization Ad Mediation & RTB Mobile Game Publishing User Acquisition & ROAS Hybrid Monetization (IAP + IAA) Impression-Level Revenue Data (ILRD) SDK Architecture Game Analytics & KPIs

Speaking & Events

App-ads.txt: Don't Add This — How Game Devs Lose eCPM and Traffic CAS.AI Channel — 2026
Why 99% of Mobile Games Fail to Scale After Launch CAS.AI Channel — 2026
Google AdMob Summit Dubai — 2025
10 Awesome Hacks of Ads Monetisation Digital Dragons Conference — Krakow, Poland — 2022
Mobile Games for Kids: 2M Daily Players & Ad Mediation Tochka G — IT Business Podcast — 2022
White Nights Berlin — 2022
Talents in Games Online — 2022
Games Gathering Kyiv — 2021
Ad Mediation in Mobile Apps ASO Secrets Conference — 2020

Articles by Oleg Shlyamovych

Featured graphic highlighting mobile app monetization and the best mobile advertising networks.

AdTech & Monetization

The Best Mobile Ad Networks

Choosing the right mobile ad mediation platform is the single biggest lever for app revenue in 2025. While the global in-app advertising market heads toward $350 billion by 2026, professional studios are moving away from single-network setups toward hybrid mediation. This approach uses real-time bidding to force competition, often resulting in 40–100% ARPU uplifts. This guide covers the metrics that matter for independent developers: payout speeds, SDK support for frameworks like Unity, Godot, and Unreal, and why an independent mediation partner avoids conflicts of interest. Whether you are self-publishing on Google Play or managing a gaming studio, selecting a partner with verified A/B-tested results is the most reliable way to maximize eCPM without compromising user experience.

March 13, 2025 7 min read

Technical isometric diagram for Unreal Engine mobile ad mediation, illustrating infrastructure to maximize game ad revenue across multiple networks.

AdTech & Monetization

Ad Mediation for Unreal Engine

Building a high-performance mobile game in Unreal Engine is only half the battle; the real challenge lies in effective monetization. Ad mediation is the essential bridge between your game and dozens of global ad networks. Rather than relying on a single provider, mediation creates a live auction environment where networks compete in real-time to fill your ad slots, ensuring you receive the highest possible eCPM for every impression. For Unreal Engine developers, whose games often attract high-value, engaged audiences, mediation isn't just an option—it’s a revenue multiplier. By integrating a solution like CAS.ai, developers can access over 150 DSPs through a single SDK. This independent, programmatic approach removes network bias, leading to reported ARPU increases. With features like a "no-loss" A/B test guarantee and reduced crash rates, ad mediation allows you to focus on gameplay while maximizing your bottom line automatically.

March 8, 2025 5 min read

Technical isometric diagram for Unity mobile ad mediation, illustrating the network infrastructure to maximize mobile game ad revenue.

AdTech & Monetization

What Is Ad Mediation for Unity Developers

For Unity developers, ad mediation is the essential technology layer that sits between your mobile game and dozens of global ad networks. Instead of relying on a single provider, mediation connects you to a vast marketplace, triggering real-time auctions for every impression. By polling multiple networks simultaneously, the system ensures the highest-paying ad is always served, significantly increasing your eCPM and fill rates. Modern platforms utilize programmatic bidding (or header bidding) alongside traditional waterfalls to create a competitive environment where 20 to 70+ networks bid for your inventory. For Unity creators, this eliminates single-network dependency and centralizes reporting into one dashboard. Whether you choose native solutions like Unity LevelPlay or high-performance independent options like CAS.AI, implementing a robust mediation strategy is the most effective way to automate growth and ensure you aren't leaving money on the table.

March 8, 2025 5 min read

Promotional banner showcasing mobile ad optimization features on a smartphone screen to achieve a 30 percent ad revenue boost for application publishers.

AdTech & Monetization Guide

Ad Mediation: The Guide to Mobile App Monetization

Managing monetization network by network is a grind - multiple SDKs, scattered dashboards, constant eCPM tweaks, and missed revenue. Ad mediation, which manages ads across networks, solves this. With mediation, you get a single SDK and dashboard. Each ad request is sent to multiple networks, bids are compared in real time, and the highest-paying ad wins - no manual prioritization or stale data, just maximum value per impression. The result? Higher eCPMs, better fill rates, and far less operational overhead. Modern platforms combine real-time bidding and waterfall fallback, so every impression is monetized efficiently. Centralized analytics and automated optimization mean you’re scaling performance, not just reacting. Manual setups leave revenue on the table. Mediation isn’t just a tool - it’s the backbone of smart app monetization.

January 4, 2025 14 min read

Three smartphone mockups showcasing a mobile ad mediation dashboard with analytics tracking, revenue metrics, and user growth charts for publishers.

AdTech & Monetization

Ad Mediation: What is it & How does it affect Mobile App Monetization

Stop bleeding ad revenue (and ditch the manual mess) Managing multiple ad networks shouldn’t feel like a full-time job. If you’re still juggling fragmented dashboards or manually updating endless SDKs, you’re likely leaving money on the table. Ad mediation is the solution. By consolidating your networks into a single platform, you can automate the competition for your ad slots. Whether you use Waterfall, Real-Time Bidding, or a Hybrid model, mediation ensures that the highest-paying network wins every impression in milliseconds. Our latest guide breaks down: Maximum eCPMs: How bidding drives higher value for your inventory. Seamless Integration: One SDK for Unity, Flutter, React Native, and more. Smart Analytics: Using real-time data to optimize fill rates and ARPDAU. Don’t treat monetization as an afterthought. Build a system that works intelligently on your behalf so you can focus on building great apps.

February 5, 2021 7 min read