[Task Management App] Optimize in-app review prompts timing

I'm working on implementing in-app review prompts for a task management mobile app (iOS/Android) and trying to determine the best timing and eligibility criteria. **Current thinking:** * Trigger after user successfully completes a task * Eligibility: 7+ days since install, 15+ completed tasks, 3+ app sessions in last 7 days * Rationale: Catch users during "early enthusiasm phase" (1-2 weeks of usage) rather than waiting until app becomes invisible routine **Questions:** 1. Does 15 completed tasks after 7 days sound reasonable, or is that too early/late for a productivity app? 2. Is there actual research on the "early enthusiasm" window vs "habit mode" for review requests, or is this mostly anecdotal? 3. For those who've implemented similar prompts - what timing/thresholds worked best for you? What didn't work? 4. Any data on conversion rates for review prompts at different user lifecycle stages (week 1 vs week 2 vs month 1)? Would appreciate any data, case studies, or real-world experience you can share. Thanks!