Indie App Onboarding That Retains Users — Day 0 to Day 28 Engagement Design

Every feature you've built is worthless if users quit in the first three minutes. At Jibun Inc. — a Flutter Web life management app competing with Notion, Evernote, and 19 others — improving onboarding increased Day-7 retention by 15% in a single sprint. This article covers the full onboarding stack: empty states, PageView carousels, progressive disclosure, and a Day 0–28 re-engagement sequence.

The Three Goals of Onboarding

Goal Metric Target

Time to Value Minutes from sign-up to first "aha" < 3 minutes

Activation Users who complete core action on Day 0 > 60%

Day 7 Retention Users who return within 7 days > 40%

Getting these numbers right matters far more than shipping the next feature. Track them before you build anything else.

1. Empty State Design

The very first screen your user sees is an empty list with zero data.…