Oleg Shlyamovich

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

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

About

Oleg Shlyamovich 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 Shlyamovich

Technical isometric diagram for Godot Engine mobile ad mediation, illustrating the network infrastructure to optimize and boost mobile game income.

AdTech & Monetization

Ad Mediation for Godot

Ad mediation is the essential middleman between your mobile game and multiple ad networks, ensuring you never leave money on the table. Instead of relying on a single provider like AdMob, mediation triggers a real-time auction for every ad slot, allowing the highest bidder to win the impression. For Godot developers, this technology is a game-changer. By implementing a mediation layer, you can navigate the engine's unique SDK landscape while accessing high-paying formats like rewarded videos and interstitials. Platforms like CAS.ai streamline this process by connecting your project to over 20 networks and 150 DSPs through a single integration. This setup eliminates the "empty slot" problem, stabilizes revenue during seasonal shifts, and provides unified analytics. Whether you are building hyper-casual titles or complex midcore games, ad mediation can boost your total revenue by 30% to 60%, making it a non-negotiable tool for any serious mobile developer.

June 8, 2025 6 min read

obile app ad mediation flow chart illustrating how to optimize and boost app monetization

AdTech & Monetization

Mobile Game Monetization: The Complete Guide

For any mobile game publisher, success isn't just about the build; it’s about the infrastructure behind it. Whether you are an indie developer or an established indie game publisher, treating monetization as an afterthought is a costly mistake. Mobile game publishing has evolved, and manual setups are now a revenue leak that a casual game publisher simply cannot afford. To become the best casual game publisher in your niche, you must leverage automation. This is especially true for a hyper casual game publisher, where thin retention curves mean every impression counts. By choosing a robust game publishing platform like CAS.AI, you streamline your workflow from day one. Don't wait until launch to fix your strategy. Master indie game publishing by integrating a mediation layer before you publish your game on Google Play, ensuring you squeeze maximum value from your global audience while focusing on the gameplay players love.

May 13, 2025 16 min read

Technical isometric diagram for React Native mobile ad mediation, illustrating smart ad integration infrastructure to optimize cross-platform app revenue.

AdTech & Monetization

Ad Mediation in React Native

Ad mediation is the essential "go-between" for React Native developers looking to maximize app revenue. Rather than relying on a single ad network, mediation creates a real-time auction where multiple networks compete for your ad slots. This ecosystem ensures that every impression—whether it’s a banner, interstitial, or high-value rewarded video—is sold to the highest bidder. The transition from traditional "waterfall" models to programmatic bidding has revolutionized monetization, often increasing earnings by 10% to 30%. By integrating a single mediation SDK, developers can access premium demand from giants like AdMob, AppLovin, and CAS.ai without the engineering overhead of managing dozens of individual plugins. Beyond higher eCPMs, mediation offers unified analytics, improved fill rates in secondary markets, and built-in A/B testing. For any React Native developer aiming for professional-scale growth, a robust mediation strategy is no longer optional. It is the foundation of a profitable mobile business.

May 8, 2025 8 min read

Network node diagram illustrating mobile header bidding mechanics with a central publisher app connecting to multiple programmatic demand sources.

AdTech & Monetization Guide

The Complete Header Bidding Guide

Traditional waterfall mediation is failing modern publishers. By ranking ad networks in a fixed, predetermined order based on historical data, the waterfall model creates a structural revenue leak where higher-paying bidders are often ignored simply because of their rank. Header bidding solves this by flipping the auction model entirely, allowing all demand partners to bid simultaneously before the ad server is even called. Whether you are a hyper-casual game developer or a cross-platform creator using Flutter or Unity, understanding the technical nuances between client-side and server-side auctions is critical. While client-side offers transparency, server-side bidding is often preferred for mobile apps to reduce latency. By integrating header bidding into your ad mediation platform, you move away from managed queues toward a live, competitive market, ensuring you capture the true market value of every single impression.

May 1, 2025 12 min read

Best Mobile Ad Networks for App Developers in 2025 blog banner

AdTech & Monetization

The Best Mobile Ad Networks

hoosing the right mobile ad mediation platform is the single biggest lever for app revenue in 2025. This guide compares top industry leaders—CAS.AI, AdMob, AppLovin MAX, and Appodeal—across performance metrics essential for independent developers. While the global in-app advertising market heads toward $350 billion by 2025, 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. The comparison highlights CAS.AI’s independent model and "no-loss guarantee" against the giant ecosystems of Google-owned AdMob and AppLovin MAX. Key factors include payout speeds (ranging from 5 to 21 days), SDK support for frameworks like Unity, Godot, and Unreal, and the critical importance of avoiding conflicts of interest. Whether you are self-publishing on Google Play or managing a gaming studio, selecting an independent 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 of 1.5x to 2x. 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 15 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