Trial-to-paid conversion
-18%4.9% → 4.0% against a 30-day baseline
Likely cause
Checkout deployment released 23 minutes earlier
Evidence
- Mobile Safari accounts for 71% of the decline
- Payment-form errors increased 4.3×, same segment
- Other browsers remained inside their normal range
Estimated impact
-$3,800/mo
Confidence
High
Recommended action
Inspect the Safari payment-form change and roll it back.