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Best Kaizen Challenge Apps & Games

158+ iOS apps & games curated and reviewed

4.1 avg rating
19 free apps & games
Updated August 2026

Out of 158+ kaizen challenge apps and games on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Kaizen Challenge Apps & Games (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Project50: 75 Soft & Be HardProject50: 75 Soft & Be HardFree4.0★ (1)NoYesMay 2026
2Gym Rank: AI Workout TrackerGym Rank: AI Workout TrackerFree4.8★ (171)NoYesSep 2026
3Kaizen | Habits & ProductivityKaizen | Habits & ProductivityFree—NoNoJul 2026
4Kaizen: Learning with a TwistKaizen: Learning with a TwistFree—YesNoSep 2026
5KAIZEN: Smart HabitsKAIZEN: Smart HabitsFree4.9★ (16)NoYesAug 2026
6Challenge Accepted AppChallenge Accepted AppFree4.7★ (3)NoNoMay 2026
7Kaizen - Tasks & CalendarKaizen - Tasks & CalendarFree1.5★ (2)NoYesSep 2026
8Moya: Level Up Your Game!Moya: Level Up Your Game!Free—NoNoMay 2026

Top Picks for Kaizen Challenge

Project50: 75 Soft & Be Hard#1

Project50: 75 Soft & Be Hard by Denys Kharyna

Hard 75 Challenge & Todohabit
Editor's Choice
🌟 Lifestyle
4.0(1 ratings)
FreeIn-App Purchases
Project50: 75 Soft & Be Hard screenshot 1
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Project50: 75 Soft & Be Hard screenshot 5

Embark on a 50-day self-improvement journey inspired by popular fitness challenges. Build discipline and life-changing habits through daily actions like exercise, learning, and mindful eating. Track your progress and transform into the best version of yourself.

Gym Rank: AI Workout Tracker#2

Gym Rank: AI Workout Tracker by Kaizen Software Development

Challenge, Progress & Strength
Strong Contender
💪 Health & Fitness
4.8(171 ratings)
FreeIn-App Purchases
Gym Rank: AI Workout Tracker screenshot 1
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Gym Rank: AI Workout Tracker screenshot 4
Gym Rank: AI Workout Tracker screenshot 5
Gym Rank: AI Workout Tracker screenshot 6

This AI-powered fitness app helps users track workouts, set personal records, and improve strength. It offers daily challenges, a unique ranking system, and AI-driven progress insights. Users can access a large exercise library with demo GIFs and create custom workout programs.

What We Love

  • 💡 Gamification based on Solo Leveling
  • 👍 Motivating and engaging workout experience
  • 👍 Provides different workout options to prevent boredom
  • 👍 Straightforward and helpful app
  • 🚀 Continuously improving and adding new features

Room to Improve

  • 🐛 Toxic community on Discord with arguments and threats
  • 💡 Needs more ways to level up and progress

More Kaizen Challenge apps to explore

FAQ about Kaizen Challenge

What are the best kaizen challenge apps & games for iPhone?
Project50: 75 Soft & Be Hard tops our kaizen challenge apps & games ranking as of August 2026, with a 4.0-star average from 1 App Store ratings, and it's free to download.
Yes — 19 of the top kaizen challenge apps & games we rank are free to download, including Project50: 75 Soft & Be Hard and Gym Rank: AI Workout Tracker.
Project50: 75 Soft & Be Hard has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 158+ kaizen challenge apps & games on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Project50 is a 50-day self-improvement challenge designed to help users build discipline and life-changing habits. It's inspired by popular trends like the 75 Soft and 75 Hard challenges, focusing on small daily actions for consistent growth.
The challenge includes seven daily habits: waking up before 8 AM, following a morning routine, exercising for 1 hour, learning a new skill, reading 10 pages, eating healthy, and tracking progress.