Key takeaways
- Retention is the only metric that predicts app success.
- Onboarding should be under 30 seconds.
- Push notifications, done poorly, are the fastest way to lose a user forever.
- Ship the smallest version that solves one real job.
Define the one job first
Before a single screen is designed, write down the one moment in a user's day when your app is the obvious choice. If you can't name that moment in a sentence, you're not ready to build.
Onboarding is the product
80% of installs churn in the first 24 hours. Everything you build after onboarding is designed for a shrinking audience. Invest disproportionately in the first three screens.
Notifications: relevance or nothing
A single irrelevant push earns you a permanent notification-off flag — sometimes an uninstall. Segment ruthlessly. Send fewer, better messages.
Native vs cross-platform in 2026
React Native and Flutter have closed most of the perceived gaps. Unless you need deep camera, AR or gaming performance, a well-built cross-platform app ships twice as fast for the same money.
TagsMobileProductRetention
