What I’d build differently:
→ Make the first session under 3 minutes. A 20-minute guided course on day 1 is where people quit
→ Design the audio experience first. Background playback, offline downloads, and a lock screen player are core features, not extras
→ Use gentle, behavior-based reminders (“you usually pause at 9pm”) instead of nagging push notifications
→ Show streaks and progress, but never guilt. A missed day should feel like a fresh start, not a failure
→ Put the paywall after the first calm moment, not before