Best 66 Days Apps

70+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated October 2026

Every iPhone needs a few good 66 days apps. We benchmark 70+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top 66 Days Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
166 Days - AI Interview Prep66 Days - AI Interview PrepFree4.8★ (258)NoYesOct 2026
2Life Reset: 66 Day HabitLife Reset: 66 Day HabitFree4.7★ (13K)NoYesOct 2026
366 Days: Habit Tracker66 Days: Habit TrackerFree4.1★ (9)NoYesOct 2026
4Kaizen AI: Reset Life 66 DaysKaizen AI: Reset Life 66 DaysFree4.6★ (57)YesYesOct 2026
5RiseAI: Life Better in 66 daysRiseAI: Life Better in 66 daysFree4.7★ (3)NoYesOct 2026
6Hibiko: 1 Habit, 66 DaysHibiko: 1 Habit, 66 DaysFree—YesYesOct 2026
7Bloom: Glowup In 66 DaysBloom: Glowup In 66 DaysFree5.0★ (1)NoYesOct 2026
8Mosaik: 66-Day Habit TrackerMosaik: 66-Day Habit TrackerFree5.0★ (1)NoYesOct 2026

Top Picks for 66 Days

66 Days - AI Interview Prep#1

66 Days - AI Interview Prep by Uru Technologies, LLC

AI Banking & Consulting Prep
Editor's Choice
📚 Education
4.8(258 ratings)
FreeIn-App Purchases
66 Days - AI Interview Prep screenshot 1
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66 Days - AI Interview Prep screenshot 3
66 Days - AI Interview Prep screenshot 4
66 Days - AI Interview Prep screenshot 5

Master banking and consulting interviews with daily AI-powered practice. Track your progress on a 66-day journey with personalized feedback on technical, behavioral, and case questions. Improve your resume and gain confidence for top firms.

Life Reset: 66 Day Habit#2

Life Reset: 66 Day Habit by Savvy Tech Limited

Gamified Habit Tracker
Strong Contender
💪 Health & Fitness
4.7😐(13K ratings)
FreeIn-App Purchases
Life Reset: 66 Day Habit screenshot 1
Life Reset: 66 Day Habit screenshot 2
Life Reset: 66 Day Habit screenshot 3
Life Reset: 66 Day Habit screenshot 4
Life Reset: 66 Day Habit screenshot 5
Life Reset: 66 Day Habit screenshot 6

This app transforms self-improvement into a game by turning your goals into daily quests, rewarding you with XP and streaks. It offers personalized habit programs, gamified progress tracking, and a suite of tools to support your journey.

What We Love

  • 👍 Changing user's life
  • 💡 Exceptional customer service
  • 🚀 Accountability tracking
  • 🚀 Good concept and potential

Room to Improve

  • 💰 Paywall/subscription required
  • 🔒 Lack of customization options
  • 🐛 Buggy UI and performance issues
  • 🔒 Inflexible tasks/activities
66 Days: Habit Tracker#3

66 Days: Habit Tracker by Epipherse

Build Habits That Stick
Worth Considering
📊 Productivity
4.1(9 ratings)
FreeIn-App Purchases
66 Days: Habit Tracker screenshot 1
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66 Days: Habit Tracker screenshot 5

This app helps you build lasting habits by encouraging daily repetition over a 66-day period. Set project-specific goals and track your progress with features like memos, photos, and notifications.

More 66 Days apps to explore

FAQ about 66 Days

What are the best 66 days apps for iPhone?
66 Days - AI Interview Prep tops our 66 days apps ranking as of October 2026, with a 4.8-star average from 258 App Store ratings, and it's free to download.
Yes — 20 of the top 66 days apps we rank are free to download, including 66 Days - AI Interview Prep and Life Reset: 66 Day Habit.
66 Days - AI Interview Prep has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 70+ 66 days apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.

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