sticky.designBook a call
Retention & product design for consumer apps

Apps users keep coming back to.

Zach EichlerHey, I'm Zach

I design the onboarding, paywalls and habit loops that turn new downloads into daily users, so the people you paid to acquire stick around.

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Trusted by apps that reached 1B+ users
  • The Miracle Morning
  • Motivation
  • Breathwrk
  • I am
  • Sticky Water
The Miracle Morning screenshot
Sticky Water screenshot
Motivation screenshot
Project four screenshot
Project five screenshot

Free · 20 questions · 3 minutes

Tired of paying to acquire users that don't stick around?

January is the biggest download spike of the year. Take the readiness check to see where your app loses new users, and what to fix first.

See if your app is ready →

Get actionable ways to make your app sticky

I work with consumer apps, especially in health and wellness, to discover and design beautiful features that keep their users engaged.

  • User Onboarding

    Setup that earns the paywall and gets people to their first win.

  • Paywall Design

    Paywalls that sell the user's own goal, not a feature list.

  • Habit Formation

    Triggers, rewards and streaks that give day 2 a reason to exist.

  • Notification Design

    Permission prompts and reminders people say yes to.

  • Gamification

    Progress, streaks and achievements that reward the right behavior.

  • Widget Design

    Home-screen surfaces that bring users back without a push.

  • User Education

    Empty states and guidance that show exactly what to do next.

  • Design Refresh

    A craft pass that makes the app feel as good as it works.

Trusted by apps with millions of users

Motivation

View on the App Store ↗
4.8out of 5 stars, from 1M+ App Store ratings

Zach has been a top tier designer to work with: sharp, flexible, communicative and skilled. His designs have been used in multiple apps and viewed by millions of happy users.

LeopoldCEO of Monkey Taps

The Miracle Morning

View on the App Store ↗
4.9out of 5 stars, from 5K+ App Store ratings

Working with Zach has exceeded all of my expectations both because of how responsive he is and his extraordinary ability to create designs that are as aesthetically pleasing as they are marketable. Work him and you won’t be disappointed.

Hal Elrodcreator and author of The Miracle Morning

Ratings from the US App Store, October 2026.

Work with me

From audits to ongoing design support, I work with consumer apps at all stages, most often in health and wellness.

  • Fitness Apps
  • Meditation Apps
  • Habit Trackers
  • Personal Growth Apps
  • Mood Trackers
  • Journaling Apps
  • Health Trackers
  • Productivity Apps

Daily active users

Illustrative

What you gain

What you lose

With the fixes

Without them

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