BC.Bartłomiej Cygan
Dedicated Mobile Analytics

Mobile App
Analytics Specialist

Helping e-commerce and subscription-based mobile apps track user behavior, optimize conversion funnels, and grow revenue through clean data.

Where is your app losing revenue?

Most mobile apps suffer from major tracking gaps that make it impossible to optimize user acquisition costs and product updates.

01 — PROBLEM

Drop-off after installation

Up to 80% of users drop off within the first 3 days. Without product analytics, you don't know where they get stuck in your onboarding flow.

02 — PROBLEM

The Subscription Black Box

Gaps in renewal, cancellation, or trial data. I integrate app tracking with tools like RevenueCat to link financial data with user behaviors.

03 — PROBLEM

Skewed Attribution & Social Traffic

Social media (TikTok, Instagram) in-app browser traffic is notoriously hard to track. I build MMP/GTM Server-Side solutions for accurate ROI.

Services & Implementations

From measurement strategy and SDK integration to automated data warehouse reporting in BigQuery.

SDK Implementation & Product Analytics

Firebase, Amplitude, Mixpanel. I design measurement strategies (tracking plans), implement custom event schemas, and track full user lifecycles.

Subscription & E-commerce Funnel Optimization

Detailed checkout analysis, in-app purchases, and subscription metrics (LTV, cohort analysis, churn rate). Integration with App Store Connect and Google Play.

Mobile Attribution (MMP) & Privacy

Setting up Mobile Measurement Partners (AppsFlyer, Adjust). Implementing privacy-compliant setups (Apple ATT, Android Privacy Sandbox) while preserving marketing ROI data.

Cloud Analytics & BigQuery SQL

Merging raw app events with CRM data in BigQuery. Building custom SQL pipelines, automated reporting, and interactive dashboards (Looker Studio, Tableau).

In-App Privacy Mystery Resolved

Apple ATT and Android Privacy Sandbox limitations cause headaches for marketers. I implement setups that are 100% compliant and preserve your tracking data.

Apple ATT & SKAdNetwork

The ATT prompt causes over 60% of users to select 'Ask App not to Track'. I decode the SKAdNetwork protocol and Conversion Value mappings to restore iOS campaign visibility without breaking privacy.

Android Privacy Sandbox

Google is phasing out Advertising IDs (GAIDs) in favor of Privacy Sandbox. I help prepare your tracking pipelines for Android's new APIs (Topics, Protected Audience, Attribution Reporting) early.

MMP & Server-Side Tracking

Instead of relying on cookies and device IDs, I implement hybrid GTM Server-Side setups integrated with Mobile Measurement Partners (AppsFlyer/Adjust) for secure, first-party data flows.

Proven at Enterprise Scale & Startups

My analytics expertise is backed by shipping systems for millions of active users.

14
CEE Markets at Decathlon

As a Digital Analytics Business Partner, I manage app and web analytics setups across 14 countries, leading MarTech standardizations.

1M+
Social media views

Running my own technical ski teaching brand gives me first-hand experience optimizing in-app browser traffic attribution from Instagram and TikTok.

SQL/BQ
Data Analysis at WP

At Wirtualna Polska, I queried massive raw databases, designing web and mobile product tracking strategies using SQL and Google Cloud Platform.

Tech stack I utilize daily
AmplitudeFirebaseGoogle Analytics 4BigQuerySQLRevenueCatAppsFlyerAdjustMixpanelGTM Server-Side

Frequently Asked Questions

Answers to common questions about mobile app tracking.

Let's build analytics that drives growth

Have questions about Firebase, Amplitude, marketing attribution, or subscription metrics? Let's discuss your application.