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

3D render illustration showing abstract e-commerce and mobile ad mediation icons (shopping cart and megaphone) on a dark metallic platform.

AdTech & Monetization

Beyond the App Store Tax: Are Webshops Worth It for Mid-Size Publishers?

Every mid-size publisher has heard the webshop pitch: dodge the App Store's 30% commission, keep more margin, done. The math looks clean on a slide, less clean in your actual P&L. This piece breaks down what's really changed in 2026's commission landscape (Apple's proposed 15% link-out fee, the EU's Core Technology Commission), and runs honest numbers on what a webshop actually captures: existing payer spend, not new revenue. First-purchase conversion sits in the low single digits industry-wide, which means a webshop only ever touches a small slice of your base; the 95%+ who never pay get nothing from it. The real opportunity most mid-size publishers leave on the table isn't the app store tax. It's ad yield on the non-paying majority. This is a decision framework for building both channels correctly, rather than picking a side.

October 4, 2026 14 min read

Abstract 3D graphic with dark panels, glowing yellow grid lines, and data metrics representing CAS.AI technology.

AdTech & Monetization

High Season Playbook

Q4 ad monetization usually turns into a mad dash at the last minute, but the teams that actually win break the quarter into four sleek phases instead of treating it like one endless holiday sprint. The secret is to sync your strategy with the market’s mood swings: September and October are your time to fix tracking, rebuild those audience pools, and run scrappy, low-cost creative tests. Come November, it’s all about scaling up fast and tweaking price floors to catch those sky-high Black Friday eCPMs. By late December, the smart move is to double down on App Store Optimization and scoop up zero-CPI organic installs from all those shiny new devices getting unboxed. And when January rolls in, you get a golden window for cost-effective retention campaigns while CPMs take a nosedive. If you stick to this phased game plan instead of scrambling mid-season, you’ll keep your fill rates healthy, squeeze every drop from peak ad revenue, and set yourself up for user value that actually lasts past the holidays.

September 28, 2026 13 min read

CAS.AI mobile ad mediation dashboard with performance metrics and analytics graphs

AdTech & Monetization

Metrics That Deceive: High eCPM and Low CPI Don’t Guarantee Profitability

High eCPM and low CPI mean nothing for profitability. Both are gross, averaged, and time-lagged. eCPM hides falling…

September 14, 2026 16 min read

Diagram illustrating a hybrid monetization strategy blending In-App Purchases (IAP) and In-App Advertising (IAA) for mobile apps in 2026.

AdTech & Monetization

Hybrid Monetization 2026: Adapting Your User Acquisition for a Blended IAA + IAP Model

Your UA team is busy chasing D7 ROAS. Product rolls out new IAP bundles. Ad ops keeps adjusting interstitial floors. Each team is optimizing on its own, and the player ends up stuck in the middle. They get hit with ads before they even see a purchase offer. Or they run into a paywall when all they wanted was a rewarded video. Hybrid monetization tossed out the old playbook. You cannot just pick ads or IAP now. The studios that win in 2026 run both at the same time for every player. Now every user has two lifetime value curves, not one. Mediation decides who sees ads, how often, and under what rules. This piece covers where studios slip up when they try to add hybrid monetization to a UA plan that only thinks about one thing. It shows how one mid-core studio rebuilt its stack using entitlement checks and frequency caps for different player groups. There is also a five-step sequence for setting up mediation without ruining the player experience.

August 12, 2026 15 min read

Two mobile phones displaying revenue growth charts and data analytics with promotional text Grow Together, Earn Together for CAS.AI mobile game ad mediation program.

AdTech & Monetization

CAS.AI Launches Referral Program

Grow Together: Introducing the CAS.AI Referral Program Scale your revenue beyond your own games with the new CAS.AI Referral Program. We’re turning community trust into a powerful third growth engine for mobile developers. How it works: • Earn Passive Income: Receive 1% of your referred partner’s ad revenue every month for a full year. • Performance Boost: Refer five or more active partners in a single month to jump your rate to 1.5%. • Guaranteed Start: Your first month’s bonus is guaranteed, with no revenue thresholds applied. • Simple Setup: Partners just enter your account name when signing up at cas.ai/company. Whether you are a studio founder, a mediation partner, or a publishing expert, you can now turn your professional network into recurring yield. [Read the Full Article] Ready to start earning? Log in to your dashboard to find your account name and start referring today.

April 16, 2026 6 min read

Mobile Game Growth

The Mobile Game Publishing Reality

This article breaks down the brutal math: only 1 in 300 indie games reaches $30,000/month, compared to 1 in 10 for publisher-backed titles. The reason comes down to three structural gaps: marketing budgets too small to fuel growth, no predictive analytics to guide user acquisition, and compounding disadvantages in CPI and ARPDAU that make breaking even nearly impossible.

April 8, 2026 10 min read

Abstract 3D digital technology platform block representing ILRD Impression Level Revenue Data for mobile game monetization.

AdTech & Monetization

ILRD Is Not a Setting. It’s the Foundation of Your Monetization Stack.

ILRD isn’t just a setting. It’s the base of your monetization stack. If you’re still looking at yesterday’s aggregate revenue and calling it “performance,” you’re flying blind. In modern user acquisition (UA), seeing $27,000 in daily revenue doesn’t tell you whether your campaigns are profitable, whether your ad frequency test is working, or whether your cheapest advertising channel is quietly hurting lifetime value (LTV). Impression-Level Revenue Data (ILRD), which measures revenue earned per individual ad impression, changes that. It connects every ad impression to a real user, specific device, and the original traffic source, turning return on ad spend (ROAS) optimization, analyzing groups of users over time (cohort analysis), and combining ads with in-app purchases (hybrid monetization) into measurable systems instead of relying on educated guesses. But IRLD isn’t just about turning it on. Waterfall floor math, bidding mechanics, alternative stores like RuStore, and Meta's platform restrictions can introduce discrepancies that quietly corrupt your signal and your UA decisions. In the full article, we break down what’s normal, what’s fixable, and what’s catastrophic. We also show you how to verify your IRLD before every build. If you’re using target Return on Ad Spend (tROAS) in 2026, this isn’t optional reading.

March 6, 2026 11 min read

ASO 2026 strategies for mobile app discovery, organic growth, and app monetization.

AdTech & Monetization

Mobile App Monetization Under Siege: Maturing Algorithms Kill Organic Growth as User Acquisition Takes the Crown

ASO and paid user acquisition have merged into a single growth system as store algorithms focus on product quality, Apple expands ad placements, and organic-only strategies lose ground inside the competitive app economy of 2025. Mobile marketing entered 2025 at a crossroads. The rules that governed app growth for years - organic optimization here, paid acquisition there - no longer hold. Apple Search Ads rolled out new placements, user behavior shifted in unexpected ways, and competition intensified across every category. The result? ASO stopped being a standalone discipline practiced in isolation and became inseparable from the entire product and marketing funnel.

February 6, 2026 13 min read

Laptop displaying data charts for user acquisition efficiency and mobile app monetization performance analytics.

Publishing

January, as strong as Black Friday: record UA efficiency at CAS.ai

In mobile games, January has long had a reputation as a “dead” month. Once the holidays are over,…

January 20, 2026 4 min read

Diagram illustrating the In-App Purchases (IAP) mobile app monetization model, featuring a shopping cart icon and a 30-day eCPM performance metric chart.

AdTech & Monetization

App Monetization Guide

Making money from an app is not as simple as flipping a switch. You need a whole toolkit. Ads, in-app purchases, subscriptions, and mixing them together all come with their own twists. What actually works depends on your app and the people using it. This guide walks you through every model that is actually worth your time. I will show you how in-app ads and mediation work in practice, where in-app purchases and subscriptions fit in, and why hybrid monetization is taking over in 2026. You will see how to choose a strategy based on your app, your platform, and your region. I will also break down the five metrics that really matter and the common mistakes that quietly put a lid on revenue for most teams. Let us look at some real numbers. One CAS.AI publisher, Fail Games, saw their revenue jump by about 80 times after it switched to a hybrid setup with both ads and in-app purchases, using mediation to manage the ads. Another publisher went from making just four dollars a day to eighteen thousand euros a month, simply by adding mediation. Here is how they did it.

January 20, 2026 13 min read