Zoriana Omelchuk

Zoriana Omelchuk

Head of Marketing, CAS.AI — User Acquisition, ASO & Mobile Growth

“12 years of mobile marketing. Scaling games from zero to millions.”

About

Zoriana Omelchuk is the Head of Marketing at CAS.AI, where she leads user acquisition, paid traffic strategy, and growth marketing for a portfolio of 200+ published mobile games. With 12 years of experience in mobile marketing, Zoriana has managed multi-million dollar UA budgets across Meta, Google, TikTok, Apple Search Ads, and all major ad networks.

Her core expertise spans paid user acquisition, ASO (App Store Optimization), creative strategy for mobile ads, and ROAS optimization. At CAS.AI, Zoriana oversees the company’s $1M+/month UA investment, working directly with partner studios to identify winning creatives, optimize funnels, and scale profitable campaigns into Tier-1 markets.

Zoriana is a recognized voice in the mobile marketing community. She has contributed to industry discussions at conferences and roundtables, including a recent expert panel on ASO and UA integration in 2025 — exploring how paid traffic and organic optimization must work as a unified growth system rather than separate disciplines.

Her data-driven approach combines A/B testing at scale with deep understanding of ad creative performance, audience segmentation, and cross-platform attribution. Zoriana advocates for treating UA and monetization as two sides of the same coin — a philosophy embedded in CAS.AI’s publishing methodology.

Areas of Expertise

User Acquisition (Paid & Organic) App Store Optimization (ASO) Creative Strategy & A/B Testing ROAS & LTV Optimization Mobile Growth Marketing Cross-Platform Attribution (SKAN, MMP) UA Budget Management & Scaling Market Localization

Speaking & Events

Articles by Zoriana Omelchuk

An abstract digital illustration showing mobile ad tracking identifiers like IDFA and GAID transitioning into secure, aggregated data privacy frameworks like SKAN and Privacy Sandbox.
AdTech & Monetization

Marketing in the Privacy Era: Measuring UA Performance Without IDFA

Measuring UA Without IDFA: What Actually Works in 2026 Deterministic tracking is gone. Most UA teams still act as if nothing has changed. IDFA and GAID let marketers pretend they had precision. Last-click attribution just let platforms take credit for organic users. Privacy rules didn't ruin mobile marketing. They showed how shaky it was all along. Here’s what actually works: SKAdNetwork, Marketing Mix Modeling, incrementality testing, and contextual cohort targeting. Use all four if you want to keep your growth team profitable. Privacy-first programmatic mediation keeps eCPM high without device IDs. Blended CPI is the only KPI that gives you the real picture. If you’re still hoping user-level tracking will return, stop waiting. Here’s what to do instead. Read the full guide

July 9, 2026 19 min read
Graphic illustrating a conceptual framework for Beyond Gaming Marketing and Ad Monetization, featuring 3D icons that represent the interplay between user acquisition and revenue generation.
AdTech & Monetization

Beyond Gaming: How Non-Gaming Apps Are Rewriting the Mobile Monetization Playbook

Non-gaming apps are set to out-earn games in 2025: $85.6 billion versus $81.8 billion. But if you’re leaving most users unmonetized, the headline is irrelevant. Most non-gaming apps blow it in three main ways: They obsess over subscriptions, which only convert 2-5% of users; run lazy, single-format ad stacks; and cling to the myth that better monetization ruins the user experience. It doesn’t. Combine ads and subscriptions. Watch lifetime value jump over 50%. Users who hit rewarded video are 4.5 times more likely to pay. Clearly, the formats work. Hybrid models work. The blueprint is already out there. Gaming has already paid the price to figure this out. Skip the mistakes: start adopting hybrid monetization strategies now to close the gap.

June 15, 2026 15 min read
App Store Optimization (ASO) strategy guide for mobile apps
AdTech & Monetization Case Study

ASO in 2026: How to Make Sure Users Can Actually Find Your App Page

ASO isn’t a launch-day checkbox. It’s a feedback loop. If you skip the update cycle, your rankings slip and competitors pass you. This checklist cuts through the noise and shows what actually drives organic installs in 2026: build separate keyword structures for iOS and Android (copy-pasting is lazy and costs you installs), rebuild your semantic core every 2-4 weeks, and run visual tests that isolate a single variable so your data is actionable. You’ll get the real rules: why the first three screenshots on iOS make or break your conversion, how literal translation kills your numbers in new markets, and the only four A/B tests that matter when you start: icon style, hero screenshot message, color themes, and video vs. static. The 2026 AI stack is here: keyword tracking, competitor moves, creative testing, and review monitoring so you’re not stuck in spreadsheets. Five mistakes still tank rankings, even if your keywords look perfect.

December 12, 2025 11 min read

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