🔥 Tier 1 - Must KnowID: retentionRateDay1_7_30
Retention Rate - Day 1 / 7 / 30
% of users who return to the app 1 day, 7 days, and 30 days after first installation
In Simple Words (Zero Jargon):
The percentage of downloaders who are still opening and using your app 1 day, 1 week, and 1 month after downloading it.
Official Mathematical Equation
Day N Retention% = (Users Active on Day N ÷ Total Cohort Installs on Day 0) × 100
Why It Is Critical
Retention is the ultimate metric in mobile. Industry benchmarks: Day 1 (25%-35%), Day 7 (10%-15%), Day 30 (5%-10%). A steep drop between Day 0 and Day 1 signals a broken onboarding flow.
Calculation Example & Benchmark Matrix
| Retention Milestone | Industry Benchmark | Diagnostic Focus |
|---|---|---|
| Day 1 Retention | 25%-35% | Onboarding speed, sign-up friction, permission prompt timing |
| Day 7 Retention | 10%-15% | Core value realization, early habit formation, initial push alerts |
| Day 30 Retention | 5%-10% | Long-term product utility, content freshness, sustainable loyalty |
What You Get: The definitive diagnostic showing whether your acquisition ads are acquiring real engaged users or leaky downloads.