AppPage.net

Screenshots

  • 66 Challenge screenshot 1
  • 66 Challenge screenshot 2
  • 66 Challenge screenshot 3
  • 66 Challenge screenshot 4

About 66 Challenge

Transform your life one habit at a time with 66 Challenge - the science-backed app that helps you build lasting habits in just 66 days. WHY 66 DAYS? Research shows it takes an average of 66 days to form a new habit. We've built the perfect system to guide you through every single day. KEY FEATURES: - Daily Habit Tracking - Mark your habits complete each day and watch your streak grow - Progress Visualization - See your 66-day journey unfold with beautiful progress tracking - Streak Protection - Stay motivated with streak counts and milestone celebrations - Progress Photos - Capture your transformation with optional daily photos - Friends & Social Feed - Follow friends, celebrate their wins, and stay accountable together - Squads - Join or create groups to challenge habits together - Achievements - Unlock badges as you hit milestones on your journey - Reminders - Never miss a day with customizable notifications BECOME UNDENIABLE Whether you want to exercise daily, read more, meditate, or build any positive habit - 66 Challenge gives you the structure, motivation, and community to make it stick. Start your 66-day transformation today. --- Terms of Use: https://spiffy-muskmelon-f8f.notion.site/Terms-of-Service-66-Challenge-2f456f682ccc8026ac42f9567c526f57 Privacy Policy: https://spiffy-muskmelon-f8f.notion.site/Privacy-Policy-66-Challenge-1e956f682ccc80f18d6ad0a347d8707f

Ratings & reviews

5.0

5 ratings

5 ★ 100% 4 ★ 0% 3 ★ 0% 2 ★ 0% 1 ★ 0%

What’s new

Version 1.1.1 · Updated August 25, 2026

Fixed a bug where the day could advance twice in one evening. Reminders now stay on after reinstalling. New share card. Badges now reward your longest streak.

App privacy

The developer, Moad Ghajjate El Fal, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Contact Info: Email Address, Name
  • Identifiers: User ID
  • Usage Data: Product Interaction
  • Purchases: Purchase History
  • User Content: Photos or Videos, Other User Content

Used for: Analytics, App Functionality

Alternatives to 66 Challenge

Looking for apps like 66 Challenge? Here are 6 similar apps on the App Store. The highest rated is Monke - Habit Game (4.8/5), and all 6 are free to download.

66 Challenge vs. alternatives
App Rating Price Last updated Compare
66 Challenge 5.0 / 5 (5 ratings) Free August 25, 2026
TripleWhale 2.6 / 5 (36) Free Oct 22, 2026 Compare
Ripples: Habit Tracker 4.7 / 5 (235) Free Oct 19, 2026 Compare
Easlo Experiments 4.6 / 5 (24) Free Aug 27, 2026 Compare
Monke - Habit Game 4.8 / 5 (1,976) Free Sep 28, 2026 Compare
Left: Widgets for Time Left 4.6 / 5 (469) Free Oct 24, 2026 Compare
SyncTasks 4.6 / 5 (356) Free Sep 24, 2026 Compare

Compare 66 Challenge with the top alternatives: ratings, updates, ASO score and keyword gaps →