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Prayer-Based App Blocker - Product Specification Document

Executive Summary

This is a mobile application (iOS & Android) that helps users build spiritual discipline by blocking access to selected apps until they complete a prayer or Bible reading session. The app combines digital wellbeing with faith-based practices to reduce mindless scrolling and increase spiritual engagement.

Core Concept

When a user attempts to open a blocked app, they are redirected to your app where they must:

  1. Read a Bible verse/prayer passage
  2. Spend a minimum amount of time reading (e.g., 30 seconds to 2 minutes)
  3. Complete the reading session
  4. Only then can they access the blocked app(s)

Key Features to Build

1. App Blocking System

  • Selection Interface: Users can select which apps to block from their installed apps
  • Block Schedule: Users can set when blocking is active (24/7, specific hours, specific days)
  • Immediate Blocking: Once enabled, selected apps are blocked immediately
  • Platform Integration:
    • iOS: Uses Screen Time API
    • Android: Uses Accessibility Service API

2. Unlock Flow (Prayer/Reading Session)

  • Interception: When user tries to open blocked app, redirect to your app
  • Content Display: Show a Bible verse or prayer passage
  • Minimum Reading Time: Enforce minimum time (30s-120s configurable per user)
  • Timer Display: Visual countdown showing time remaining
  • Completion: After time expires, show "Unlock" button
  • Unlock Duration: Apps unlock for a set period (configurable: 5min, 15min, 30min, 1hr, rest of day)
  • Re-lock: Apps automatically re-lock after unlock duration expires

3. Content Library (Bible Verses & Prayers)

  • Daily Verse: One featured verse per day
  • Verse Categories: Organize by theme (strength, peace, gratitude, temptation, etc.)
  • Verse Rotation: Ensure users don't see the same verse repeatedly
  • Reading History: Track which verses user has read
  • Favorites: Allow users to mark favorite verses
  • Custom Content: Premium users can add their own prayers/verses

4. User Settings & Customization

  • App Selection: Choose which apps to block
  • Block Schedule: Set active hours for blocking
  • Reading Duration: Set minimum reading time (30s-120s)
  • Unlock Duration: Set how long apps stay unlocked
  • Theme: Light/Dark mode
  • Notifications: Prayer reminders, daily verse notifications
  • Bypass Emergency: Optional emergency override (with warning/guilt message)

5. Analytics & Progress Tracking

  • Daily Stats:
    • Number of prayer sessions completed
    • Total time spent reading
    • Apps that were blocked attempts
    • Success rate (completed readings vs bypasses)
  • Weekly/Monthly Reports: Trends and patterns
  • Streak Tracking: Days of consistent use
  • Milestones: Achievements (7 days, 30 days, 100 readings, etc.)

6. Monetization (RevenueCat Integration)

  • Free Tier:

    • Block up to 3 apps
    • Access to basic verse library (100 verses)
    • Daily featured verse
    • 30-second minimum reading time (fixed)
    • Ads between unlock sessions (optional)

  • Premium Tier (Monthly/Annual Subscription):

    • Block unlimited apps
    • Access to full verse library (500+ verses)
    • Custom prayers/content
    • Advanced scheduling (different blocks for different days)
    • Adjustable reading time
    • No ads
    • Progress analytics and reports
    • Custom themes
    • Priority support

7. Onboarding Experience

  1. Welcome Screen: Explain app purpose
  2. Permission Requests:
    • Screen Time API (iOS) / Accessibility Service (Android)
    • Notifications
  3. App Selection: Guide user to select apps to block
  4. First Prayer: Show sample prayer session
  5. Schedule Setup: Help set blocking schedule
  6. Paywall: Show premium features (RevenueCat)
  7. Done: Confirm blocking is active

Technical Requirements

Platform-Specific APIs

iOS

  • Screen Time API: Required for app blocking
  • App Extensions: For interception and monitoring
  • Local Notifications: For reminders and daily verses
  • SwiftUI/UIKit: UI framework

Android

  • Accessibility Service API: Required for app blocking
  • Usage Stats API: For tracking app usage
  • Foreground Service: To monitor app launches
  • WorkManager: For background tasks

Backend Services (Optional but Recommended)

  • User Authentication: Firebase Auth or similar
  • Content Management: Store/sync verses and prayers
  • Analytics: Track usage patterns (anonymized)
  • RevenueCat: Subscription management
  • Push Notifications: For reminders and engagement

Data Storage

  • Local Storage:
    • User preferences
    • Blocked apps list
    • Reading history
    • Unlocked apps cache
  • Cloud Sync (Premium):
    • Sync settings across devices
    • Backup reading history

User Flow Diagrams

Primary Flow: Blocked App Access

User taps blocked app
    ↓
System intercepts launch
    ↓
Redirect to Prayer App
    ↓
Display Bible verse
    ↓
Start reading timer (30s-120s)
    ↓
[User must wait and read]
    ↓
Timer completes
    ↓
"Unlock" button appears
    ↓
User taps Unlock
    ↓
Apps unlocked for set duration (5min-1hr)
    ↓
[User can use blocked apps]
    ↓
Duration expires
    ↓
Apps re-lock automatically

Secondary Flow: Premium Upgrade

User hits free tier limit
    ↓
Show paywall (RevenueCat)
    ↓
Display premium features
    ↓
User selects plan
    ↓
RevenueCat handles payment
    ↓
Unlock premium features
    ↓
Sync entitlement status

Success Metrics

User Engagement

  • Daily Active Users (DAU)
  • Prayer sessions completed per day
  • Average reading time per session
  • Retention rate (Day 1, Day 7, Day 30)

Monetization

  • Conversion rate (Free → Premium)
  • Monthly Recurring Revenue (MRR)
  • Average Revenue Per User (ARPU)
  • Churn rate

Spiritual Impact

  • User-reported spiritual growth
  • Streak length
  • Reduced screen time on blocked apps

Competitive Differentiation

vs PrayScreen

  • Improvements to Consider:
    • Better reliability (users complain about bugs)
    • Clearer paywall restoration
    • More verse categories
    • Better onboarding
    • Smoother unlock flow
    • More customization options

Unique Value Proposition

  • "Transform your screen time into prayer time"
  • "Build spiritual discipline one unlock at a time"
  • "Stop mindless scrolling, start mindful praying"

Development Phases

Phase 1: MVP (6-8 weeks)

  • Basic app blocking (3 apps max)
  • Simple verse library (50 verses)
  • Fixed 30s reading time
  • Basic unlock flow
  • iOS OR Android (pick one)
  • RevenueCat integration (one subscription tier)

Phase 2: Core Features (4-6 weeks)

  • Full verse library (300+ verses)
  • Customizable settings
  • Analytics dashboard
  • Both iOS and Android
  • Multiple subscription tiers
  • Daily notifications

Phase 3: Enhanced Features (4-6 weeks)

  • Custom prayers/content
  • Advanced scheduling
  • Streak tracking and achievements
  • Social features (share verses, pray with friends)
  • Widget support

Phase 4: Growth & Optimization (Ongoing)

  • A/B testing
  • Content expansion
  • Performance optimization
  • Marketing features (referrals, challenges)

Risk Mitigation

Technical Risks

  • Platform API Changes: iOS/Android may change blocking APIs

    • Mitigation: Stay updated with platform changes, have fallback methods

  • Permission Denial: Users may not grant required permissions

    • Mitigation: Clear education on why permissions are needed, graceful degradation

Business Risks

  • Market Competition: Multiple similar apps exist

    • Mitigation: Focus on better UX, reliability, and unique features

  • User Retention: Users may uninstall after initial use

    • Mitigation: Strong onboarding, notification strategy, demonstrate value

Legal/Privacy Risks

  • Data Privacy: Sensitive data about app usage and reading habits

    • Mitigation: Privacy-first approach, minimal data collection, clear privacy policy

  • Accessibility API Misuse (Android): Google scrutinizes accessibility service apps

    • Mitigation: Clear explanation in Play Store listing, proper use of API

Next Steps

  1. Review this specification and provide feedback
  2. Review the data structures document (separate file)
  3. Set up development environment
  4. Create wireframes/mockups for key screens
  5. Set up RevenueCat account and configure products
  6. Begin Phase 1 development
  7. Test with beta users
  8. Launch MVP

Questions to Consider

  1. Will you target iOS first, Android first, or both simultaneously?
  2. What will be the pricing for premium subscription? (Suggest: $4.99/month, $29.99/year)
  3. Will you include ads in free tier?
  4. What denomination/style of Bible verses? (e.g., ESV, NIV, KJV)
  5. Will you support multiple languages eventually?
  6. How strict should the bypass/emergency override be?
  7. Will you track any usage analytics? What about privacy?