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Mobile App Onboarding Flow Builder

Design and implement an engaging mobile app onboarding flow with personalization, progressive disclosure, and A/B testable variants.

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Your Prompt
prompt.txt
You are a mobile UX engineer specializing in user onboarding. Help me build an onboarding flow for a language learning app that maximizes activation rate.

Step 1: Design the onboarding flow architecture with 6 screens. Structure the flow as: welcome/value proposition (1 screen), permission requests with context (1-2 screens), personalization survey (3 questions), account creation or skip option, and first core action tutorial. Map the flow in a state diagram showing all possible paths including skip, back, and conditional branches based on user responses.

Step 2: Build the welcome screens using SwiftUI / Jetpack Compose. Create 3 animated illustration slides that communicate the app's core value propositions. Implement smooth page transitions with Lottie with parallax animations. Add a skip button and progress indicator. Each slide should have: headline (max 6 words), subtext (max 2 lines), illustration or Lottie animation, and a CTA button for the final slide.

Step 3: Implement the permission request screens with pre-permission priming. Before showing the system permission dialog, display a custom screen explaining why push notifications permission is needed and how it benefits the user. Track permission grant/deny rates per screen. If the user denies, show an alternative flow that works without the permission and offer a "remind me later" option that resurfaces after 3 days.

Step 4: Build the personalization survey that tailors the app experience. Ask 3 questions that determine: user goals (casual learning, exam prep, travel, career), experience level, preferred content types, and usage frequency. Use engaging input patterns (visual selectors, sliders, card swipes) instead of standard form elements. Store responses in local + server sync and use them to customize the home screen, recommended content, and notification frequency on first launch.

Step 5: Implement the account creation step with Apple, Google, email sign-up options. Allow users to explore the app before requiring an account (delayed registration wall at the saving progress after first lesson action). Show the value they have already built (personalization choices, saved content) as motivation to create an account and not lose progress. Track the conversion rate at this step and optimize placement.

Step 6: Set up A/B testing for the onboarding flow using Firebase Remote Config. Create 3 variants to test: number of onboarding steps, illustration style, copy tone, permission request timing, and survey length. Track activation metrics: onboarding completion rate, time to first core action, Day 1 retention by variant, and permission grant rates. Run each test for 2 weeks before declaring a winner.

What this prompt does

This prompt treats onboarding as engineering, building a flow designed to maximize activation. It covers six steps: mapping the flow as a state machine, building animated welcome screens, implementing pre-permission priming, creating a personalization survey, adding a delayed registration wall, and setting up A/B testing. Mapping the full state machine first is what prevents the common mistake of begging for an account on screen one, before the user has any reason to commit.

The variables shape the flow to your app. [step_count] and [survey_questions] size the journey, [ui_framework] and [carousel_count] plus [animation_type] drive the welcome screens, and [permission_type] with [remind_delay] control the priming. [goal_options] and [storage] personalize the experience, [registration_gate] decides when the account wall appears, and [ab_test_tool], [variant_count], and [test_duration] configure experimentation. Each variable maps to a decision that directly affects activation, so they are worth tuning rather than leaving default.

When to use it

  • You are building a new app's onboarding and want it tuned for activation, not decoration.
  • You want the full flow modeled as a state machine before any screens are built.
  • You need pre-permission priming so [permission_type] grant rates improve.
  • You want a personalization survey that actually customizes the first session.
  • You want to delay the account wall until the user has built something worth saving.
  • You plan to A/B test step count, copy, and permission timing rather than argue about them.

Example output

Expect a state diagram covering every path including skip, back, and conditional branches based on survey answers. The welcome step produces animated slide specs with headlines, subtext, and CTAs; the permission step produces priming screens with grant/deny tracking and a remind-later option; and the survey step produces a [survey_questions]-question flow using visual inputs. Later steps add a delayed registration step gated at [registration_gate] and an A/B test setup with [variant_count] variants in [ab_test_tool] tracking completion rate and D1 retention. It mixes flow diagrams, UI specs, and tracking definitions, with the conditional branches drawn out so no path is left unhandled.

Pro tips

  • Get the state machine right first; set [step_count] and map skip and back paths before building, since rework here is expensive.
  • Use pre-permission priming for [permission_type] and offer a remind-later that resurfaces after [remind_delay]; never trigger the system dialog cold.
  • Keep [survey_questions] short and visual; long surveys with standard form fields kill completion rates.
  • Place the [registration_gate] where the user has already invested effort, and surface that progress as motivation to sign up.
  • Store personalization in [storage] so the home screen genuinely reflects the chosen [goal_options] on first launch.
  • Run each A/B variant for the full [test_duration]; calling a winner early on activation metrics is misleading and easy to do.

Frequently Asked Questions

Why map a state machine before building screens?
Onboarding has many branches: skip, back, conditional paths based on survey answers, and authenticated versus unauthenticated states. Step 1 maps all of these first so the implementation handles every path cleanly, rather than discovering missing transitions after the UI is built.
What is pre-permission priming and why use it?
Before showing the system permission dialog for `[permission_type]`, the flow displays a custom screen explaining why the permission helps the user. This context typically improves grant rates, and if the user declines, an alternative flow plus a remind-later after `[remind_delay]` keeps the app usable.
When does the prompt ask users to create an account?
It uses a delayed registration wall gated at `[registration_gate]`, letting users explore and build personalization first. The flow then surfaces the progress they would lose as motivation to sign up, which generally converts better than an account wall on screen one.
Can I actually A/B test the onboarding?
Step 6 sets up `[variant_count]` variants in `[ab_test_tool]`, testing step count, illustration style, copy tone, permission timing, and survey length. It tracks completion rate, time to first action, and D1 retention per variant, with each test running for `[test_duration]` before declaring a winner.
Engr Mejba Ahmed

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Engr Mejba Ahmed

AI Developer · Software Engineer

I'm Mejba — I design and ship production AI systems, automations, and full-stack apps. If you want this turned into a working solution for your team, let's talk.

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