Flagship Retention Measurement Audit

Engagement Purpose & Target Audience

The Retention Measurement Audit is designed specifically for product leaders, engineering heads, and data directors operating consumer or B2B mobile applications with active user bases between 50,000 and 5,000,000 MAU.

When mobile products scale, legacy analytics implementations accumulate tracking debt: background push notification handlers trigger unearned active sessions, client SDK update lags create event dropping on newer OS versions, and cohort calculations rely on arbitrary calendar dates rather than discrete user-activation milestones. This engagement systematically identifies and reconciles every breakdown in your retention measurement stack.

The Real Result & Value Delivered

At the conclusion of this 3-week engagement, your team receives an undisputed, mathematically validated retention baseline. You will know with certainty:

1. True Active User Retention Curves: D1, D7, D14, D30, and D90 retention rates anchored strictly to verified value exchange events rather than passive screen loads.
2. Telemetry Defect Inventory: A line-by-line log of faulty client event triggers, missing payload properties, duplicate fires, and network batching drops across your iOS and Android builds.
3. Reconciled Data Warehouse Models: Production SQL transforms and data models that align your raw client event streams with clean, board-ready cohort metrics.

Detailed Scope of Work

Our audit spans three distinct forensic phases over 21 calendar days:

Phase 1: Client Telemetry & SDK Event Inspection (Week 1)

• Forensic review of client-side tracking code in Swift, Kotlin, React Native, or Flutter codebases.
• Verification of app lifecycle triggers: foreground/background transitions, push wakeups, deep-link handling, and auth token silent refreshes.
• Network interception testing under realistic mobile conditions (airplane mode reconnection, poor 3G/4G packet loss, battery saver mode throttling).

Phase 2: Critical Event Calibration & Cohort Segmentation (Week 2)

• Mapping and evaluation of your app’s core value moments (e.g. completed first transaction, media playback duration threshold, core creation workflow).
• Decomposition of acquisition cohorts by source, device category, geography, and app version to isolate cohort contamination.
• Testing unbracketed vs. rolling retention formulas to quantify baseline discrepancies.

Phase 3: Data Warehouse Reconciliation & Findings Dossier (Week 3)

• Direct query auditing across Snowflake, BigQuery, ClickHouse, or PostgreSQL raw event tables.
• Formulation of mathematically reconciled cohort calculation queries.
• Delivery and executive presentation of the comprehensive Retention Audit Findings Dossier.

What Is Included and Excluded

Included in the Engagement

• Direct source code inspection of client-side telemetry implementation (up to 2 mobile platforms, e.g. iOS + Android).
• Deep analysis of up to 40 core telemetry event schemas.
• Audit of existing cohort calculation queries and dashboard configurations.
• 40+ page structured Audit Findings Dossier with prioritized severity ratings (Critical, High, Medium, Low).
• Production-ready SQL templates for standard and bracketed cohort retention queries.
• 90-minute executive presentation with Q&A for engineering, data, and product stakeholders.
• 30 calendar days of follow-up asynchronous query verification via email and ticketing.

Excluded from the Engagement

• Writing production application code or deploying pull requests directly to client app stores (we provide exact code snippets and implementation guides for your internal engineering team).
• Long-term data engineering pipeline maintenance beyond the 30-day verification window.
• Direct media buying or ad campaign management.

Client Preparation & Engagement Prerequisites

To ensure rapid progress from Day 1, client teams are requested to prepare:

1. Read-only access to client-side tracking repositories or tracking instrumentation modules.
2. An up-to-date tracking plan or schema registry (if available; otherwise we construct one during Phase 1).
3. Read-only access to a sanitized staging or production replica of your event data warehouse.
4. A 45-minute kickoff interview with your lead product manager and telemetry engineer.

Pricing & Next Steps

The Retention Measurement Audit is delivered for a flat, all-inclusive advisory fee of $4,800 USD. No hidden setup charges or ongoing platform licensing fees.

To schedule an initial scoping session with our Bangkok advisory practice, submit an inquiry through our direct consultation form or email our desk at info@corevertexpoint.click.