Comparison

3 Weeks AI Challenge vs Habit Tracker & Goal Builder

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

3 Weeks AI Challenge

Features
Read full description

Transform your life in just 21 days with the ultimate AI-powered challenge tracker and habit builder app. Build lasting habits, achieve your goals, and unlock your potential with personalized AI insights and daily motivation. WHY 21 DAYS? Science shows it takes 21 days to form a new habit. Our app makes it easy, fun, and rewarding. Track your daily progress, set personalized goals, and get AI-powered analysis to help you succeed. KEY FEATURES: Daily Challenge Tracker - Track your 21-day challenge progress with beautiful visualizations - Set and manage daily goals with our intuitive goal tracker - Monitor streaks and build consistency with daily habit tracking - Get real-time progress updates and motivational reminders AI-Powered Analysis - Receive personalized AI insights about your journey - Daily AI analysis of your progress and patterns - Sentiment analysis to understand your emotional journey - AI predictions about your completion probability - Smart suggestions tailored to your unique challenge Daily Notes & Journal - Journal your thoughts and experiences each day - Track mood and emotional patterns - Review your journey with comprehensive notes - Export your progress for reflection Goal Management - Set custom daily goals for any challenge category - Track fitness, health, productivity, and personal growth goals - Mark goals as complete and see your achievements - Get personalized goal recommendations from AI Progress Analytics - Visual progress rings and charts - Weekly and periodic analysis reports - Consistency scores and engagement metrics - Completion statistics and streaks Badges & Achievements - Unlock badges for milestones and achievements - Celebrate your progress with visual rewards - Track your accomplishments throughout the challenge Premium Features - Advanced AI insights and predictions - Unlimited challenges and goals - Detailed analytics and reports - Priority support and early access to features Beautiful Design - Modern, intuitive interface - Dark mode and light mode support - Smooth animations and transitions - Customizable themes and colors Perfect for: - 21-day challenge enthusiasts - Habit tracker and goal tracker users - Self-improvement and personal growth seekers - Fitness challenge and health challenge participants - Productivity and routine builders - Anyone looking to build lasting habits Challenge Categories: - Fitness & Health Challenges - Productivity & Focus - Wellness & Mindfulness - Personal Growth & Development - Custom Challenges Why Choose 21 Days AI Challenge? Unlike basic habit trackers, we combine proven 21-day methodology with cutting-edge AI technology. Our AI analyzes your progress, provides personalized insights, and helps you stay motivated throughout your journey. Whether you're starting a 30-day challenge, 21-day habit tracker journey, or building daily routines, our app adapts to your needs. Track multiple challenges simultaneously, set daily goals, and get AI-powered recommendations to maximize your success. Download now and start your transformation today Transform your habits, achieve your goals, and unlock your potential with the power of AI and the proven 21-day method.

About

Habit Tracker & Goal Builder

This app helps you build good habits and quit bad ones with guided programs and real stakes. It offers flexible tracking, detailed reports, and cross-device syncing. Features include daily tasks, streak protection, and mood logging.

Highlights
  • Guided Journeys with daily tasks
  • Streak protection and flexible goals
  • Detailed weekly/monthly reports
  • Mood logging and analysis
  • Cross-device syncing
  • Home screen widgets and Apple Watch app
Features
Read full description

You don't need more motivation. You need a plan that notices when you skip. Streak is a habit tracker for building good habits and quitting bad ones — quit smoking, quit vaping, quit doomscrolling — with 63 guided Journey programs that tell you exactly what to do each day, and one honest rule: miss a day, start over. WHY IT WORKS • A plan, not a blank list — every Journey comes with daily tasks already written • Real stakes — skip a day and the program restarts at day one, so finishing means something • Flexible goals — daily, weekly or monthly; a check, a count, or minutes on a timer • Streaks you can trust — vacation mode and skip days protect your chain when life happens • Everything on one screen — today's habits sorted into morning, afternoon and evening • Works offline — your data lives on your device 63 GUIDED JOURNEYS Monk Mode: 15 days, one project, a protected deep-work block every day. Or pick a 30-day program: Morning Reset, Digital Detox, Dopamine Detox, Hard 30, Soft 30, Cold Shower, 10K Steps, Glow Up, No-Buy, Sleep Reset and more. Each day unlocks only today's tasks; milestones at days 7, 14 and 21; rest days built in. Run up to three Journeys at once. BUILD OR QUIT Build: read, meditate, train, drink water, sleep early. Quit: smoking, vaping, sugar, alcohol, doomscrolling. For quit habits, success means staying under your limit — the app counts that way. TRACK YOUR WAY Checks, counts with custom units, or a live timer with a running badge. Multiple reminders per habit, by weekday. Backfill missed days from the calendar. Tag and sort habits. 94 3D icons and three color themes, each with light and dark. SEE WHAT'S REALLY HAPPENING Weekly, monthly and yearly reports, a per-habit heatmap calendar, best streaks, perfect days and a Year in Review grid. Log your mood — five levels, notes, factors — and see how it moves with your habits. ON YOUR WRIST AND HOME SCREEN Apple Watch app with a wrist timer. Home and lock screen widgets you can complete from. A Live Activity in the Dynamic Island while your timer runs. Siri shortcuts. Apple Health can auto-fill steps, sleep, exercise and HRV. TOGETHER OR ALONE Start a group with an invite code and see each other's daily progress — or keep it all to yourself. Sync your data across devices when you sign in with Apple or Google; no email needed. Lock the app with Face ID. FOR ANYONE WHO WANTS TO quit smoking or vaping, stop doomscrolling, build a morning routine, drink more water, do a dopamine detox, train for 30 days straight, run a full glow up — or finally finish that one project in Monk Mode. Pick a Journey. Day one starts today. Streak is not medical advice and does not diagnose or treat any condition. Privacy Policy: https://babella.org/habit/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

3 Weeks AI Challenge4 screens
Habit Tracker & Goal Builder4 screens

Verdict

The call

The clearest difference is in-app purchases: 3 Weeks AI Challenge at none against Habit Tracker & Goal Builder's 6. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Habit Tracker & Goal Builder sells 6 in-app purchases, starting at $2.99 per month. 3 Weeks AI Challenge asks for nothing beyond the download.

Scorecard1 real difference · 8 level
3 Weeks AI Challenge versus Habit Tracker & Goal Builder: the parameters behind the verdict, then further details
Parameter3 Weeks AI ChallengeHabit Tracker & Goal Builder
PriceFreeFree
Rating—4.5 (2 ratings) — better
Number of ratings—2 — better
Update frequency—Every 6 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.6 — better16.4
Further details — not scored
Size9 MB161 MB
Age rating4+4+
DeveloperAmine AzizLIZAVETA UN

In-app purchases

None

3 Weeks AI Challenge

No in-app purchases

6 purchases

Habit Tracker & Goal Builder

Subscriptions5
  • Streak Pro$2.991 Month
  • Streak Pro Monthly$2.991 Month
  • Streak Pro Yearly Offer$14.991 Year
Show 2 more
  • Streak Pro$19.991 Year
  • Streak Pro Yearly$19.991 Year
One-time1
  • Streak Pro Lifetime$29.99

Questions

Is 3 Weeks AI Challenge free?
3 Weeks AI Challenge is free to download, with no in-app purchases.
Is Habit Tracker & Goal Builder free?
Habit Tracker & Goal Builder is free to download, with in-app purchases available.
Do 3 Weeks AI Challenge or Habit Tracker & Goal Builder have ads?
Neither 3 Weeks AI Challenge nor Habit Tracker & Goal Builder shows ads.

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