linhart.io · Mobile Growth & UA Consultant

01 About Who you're trusting with your budget

David Linhart

Mobile Growth & UA Consultant

Brno, Czech Republic · Remote

Available · Q2 2026 open

Most mobile studios are burning 20-30% of their UA budget on channels that don't work - and don't know it.

I find where the money goes. Fix the tracking. Scale what actually works.

I don't need to see your creatives to find the problem. The data tells me everything.

What I work on

Finding wasted spend - fast

Fixing attribution & MMP setup

GEO allocation and budget rebalancing

Creative strategy & A/B frameworks

Aligning UA with IAP & IAA for LTV

My approach

Data first - always

Fix before scaling

Every change documented

Lean budgets to $3M+/year

Weekly loops - no guessing

02 Experience 8+ years in mobile apps & games $15M+ career ad spend

Alda Games

2022 – Present · Brno

Performance Lead

High-scale UA across Meta, Google, AppLovin, TikTok, Unity, and Mintegral. Profitable growth across a multi-title mobile game portfolio. Designed creative testing frameworks that reduced CPI. Strategic budget allocation, GEO scaling, and channel mix optimization using data.

Current

Geewa

2022 · Prague

Senior Growth Consultant

UA growth and monetization engagement for Smashing Four ahead of company acquisition. Audited existing campaign structure and monetization stack. +25% ad revenue through mediation optimization. Restored positive ROAS campaigns.

Consulting

NoxGames

2018 – 2022 · Brno

UA Specialist → Head of Growth

Grew from UA Specialist to Head of Growth over 4 years. Led UA, ASO, analytics, and monetization. +85% organic reach through data-driven ASO strategy.

4 years

03 Stack Tools & platforms 08 categories

Ad Platforms

Meta AdsGoogle AdsAppLovinTikTok AdsUnity AdsMintegralMolocoLiftoff

Attribution (MMP)

AppsFlyerAdjustSingularSKAN

Mediation

Unity LevelPlayAppLovin MAX

ASO & Intelligence

AppTweakMobileActionAppMagicSensorTower

Analytics

FirebaseGoogle AnalyticsGameAnalytics

Store Management

Google Play ConsoleApp Store Connect

Project Management

JiraClickUpTrello

Certifications

Meta BlueprintGoogle AdsAppsFlyer Academy

04 Services App & game marketing - iOS & Google Play 06 areas

🎯

User Acquisition

Meta, Google, AppLovin, TikTok, Unity, Mintegral, Moloco, Liftoff.

CPI reductionROAS optimizationGEO scaling

🔗

Attribution & MMP Audit

AppsFlyer, Adjust, Singular. SKAN tracking, event mapping, attribution fixed.

MMP setupSKANData quality

📈

ASO & Organic Growth

Keywords, store optimization, CPP, A/B experiments, in-app events.

iOS & GP+85% organic reach

🧪

Creative Strategy

UGC briefs, A/B frameworks, platform-specific formats.

UGCA/B testingHook analysis

💰

Monetization & Mediation

Unity LevelPlay, AppLovin MAX. IAP + IAA hybrid to maximize LTV.

MediationLTVIAP + IAA

🚀

Turnkey App Management

Store setup to ongoing UA and analytics. You focus on the product.

Full serviceZero to scale

05 Work Real data. Real fixes. 04 cases

UA Audit · Mobile game · 8 months

$38k/month gone.
Not the product's fault.

ROAS before0.91xportfolio avg

iOS loss share82%21% of budget

Worst DSP CPI$10vs avg $3.65

Expected impact+$15-38k/mo3 changes, wk 1

Decision Audit · Mobile game · Jan 2026

Paused the winners.
Scaled the losers.

Before

1.36x & 1.62x ROAS - paused. DSP 0.27x running at $12k/mo.

After

DSP paused. Winners back. +$15-18k/mo recovered.

Lost profit$15-18kover 2 months

Root causeNo docsbatch stop, no review

GEO Audit · Budget reallocation

Best markets.
Zero budget.

Sweden ROAS1.90xgot 3% of budget

US spend$156kROAS 0.93x · 38%

Est. impact+$8-12k/mono new creatives

Creative Audit · Facebook Ads

56s on Facebook.
Algorithm gave up.

FB optimum6-15severy second over 30s hurts

This video56sdelivery suppressed

Fix14s hook1.85M impressions

06 UA Audit How I find and fix the bleeding 5 phases

I find where
your budget disappears.

Most problems are visible in the data within 48 hours. No creatives needed - just your numbers.

Collect

All campaign data - spend, ROAS, CPI, GEOs, MMP setup, attribution events, creative performance.

Diagnose

Budget bleed, decision gaps, paused winners, wrong GEO allocation, attribution noise.

Prioritize

Issues ranked by financial impact. Week 1 fixes vs. strategic. Each with estimated monthly impact.

Execute

Pause losers. Scale winners. Fix attribution. New creatives briefed. Every change documented.

Optimize

Weekly review loop. Kill what's slow. Scale what works. Compound growth month over month.

ua-audit.sh · live · linhart.io

$run audit --scope full --period 8mo

// 6 networks · 19 GEOs · $407k total spend

✗ CRIT iOS: 82% loss share · ROAS 0.65x

✗ CRIT DSP CPI $10 vs benchmark $3.65

! WARN winners paused Jan · no docs

! WARN Meta Android inactive since Nov

✓ GOOD Mintegral ROAS 1.05x · scalable

→ FIX pause DSP · cap iOS · scale winners

✓ DONE +$15-38k / month · 3 changes

Want to see the full audit?

I can share a detailed sample audit report - real data, real findings, real fixes. Or we jump straight to your numbers.

One consulting slot open for Q2 2026.

Request audit Get audit sample