Best Ninety alternatives: apps like Ninety: 90 Day Challenge

10+ similar apps compared and reviewed

4.8 avg rating
10 free apps
Updated November 2026

Looking for something like Ninety? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Ninety

Winter Arc - 90 Days Challenge#1

Winter Arc - 90 Days Challenge by Ikuhei Kure

Lock In: Daily Habit Tracker
4.5(6 ratings)
FreeAdsIn-App Purchases
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This app helps you build habits over 90 days by setting daily rules and tracking your progress. It offers flexibility with grace days and rescue options, and visualizes your journey with a heatmap and journal. Share your achievements and stay motivated with widgets and reminders.

30 Day Challenge - LockIn30#2

30 Day Challenge - LockIn30 by EHM TECH LLC

Her & His Tough, Soft Tracker
5.0(4 ratings)
FreeIn-App Purchases
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Track a single habit for 7 to 365 days with daily logging options like photos, counters, and measurements. Choose strict or forgiving modes, view progress with timelapses, and stay motivated with reminders. This app is ad-free and works offline.

75 Days Challenge - Reset75#3

75 Days Challenge - Reset75 by EHM TECH LLC

Her & His Tough, Soft, Medium
4.8(116 ratings)
FreeAdsIn-App Purchases
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This app helps you complete self-improvement challenges with customizable tasks, progress tracking, and motivational tools. Log daily activities, capture progress photos, and generate timelapse videos. All your data is stored securely on your device.

More apps like Ninety

4
75 Days Challenge: Better
75 Days Challenge: Better
75 Days Challenge: Better
Soft Habit Streak Tracker
Free

This app helps you build lasting habits by tracking your progress on custom challenges. Set flexible durations, log daily progress with photos and notes, and monitor weight trends. Stay motivated with home screen widgets to maintain your streaks.

Custom challengesFlexible durationsHome Screen widgets
💪 Health & Fitness
(695)
free with in-app purchases
5
90 Day Challenge
90 Day Challenge
90 Day Challenge
by Browney B.V.
Free

This app offers personalized 90-day fitness programs tailored to your goals and experience level. Track your progress with detailed metrics, visual progress photos, and motivational tools like streaks and badges. You can also challenge friends to join your fitness journey.

Personalized 90-day workout programsIn-app progress tracking (weight, reps, PRs)Monthly strength tests and weekly challenges
💪 Health & Fitness
(5K)
free with in-app purchases
6
Her 75
Her 75
Her 75
75 day challenge with friends
Free

Embark on a 75-day personal transformation journey with friends. Track daily tasks, water intake, and progress in real-time. Choose from pre-set challenges or create your own custom goals.

75-day challenge trackingFriend progress visibilityCustomizable to-do lists
💪 Health & Fitness
(5.3K)
subscription
7
Symmetry: Gym Workout Tracker
Symmetry: Gym Workout Tracker
Symmetry: Gym Workout Tracker
Weight Training Fitness Log Ai
Free

This AI-powered fitness app creates personalized workout plans based on your body scan. It offers smart tracking, automatic progressive overload, and detailed progress visualization to help you build muscle and achieve an aesthetic physique.

AI Body Scan for genetic analysis100% personalized workout plansSmart workout tracking
💪 Health & Fitness
(6.8K)
freemium
8
Lose Weight for Men at Home
Lose Weight for Men at Home
Lose Weight for Men at Home
Weight Loss, Lose Belly Fat
Free

This app offers effective at-home workouts designed for men to burn fat, lose weight, and build muscle without equipment. It features customizable routines, low-impact options, and progress tracking to help users achieve their fitness goals.

Effective fat-burning workoutsLose belly fat and man boobs30-day weight loss plan
💪 Health & Fitness
(3K)
subscription
9
75 Days Challenge Tough & Soft
75 Days Challenge Tough & Soft
75 Days Challenge Tough & Soft
75 soft medium fitness tracker
Free

This app supports a 75-day self-improvement and fitness challenge. It helps users track their daily tasks, stay motivated, and connect with a community of fellow participants. Unlock advanced features with an optional subscription.

75-day challenge trackingProgress monitoringMotivation tools
💪 Health & Fitness
(8.9K)
freemium
10
Built With Science+
Built With Science+
Built With Science+
Science-Backed Fitness
Free

This intelligent fitness companion offers personalized workout and nutrition plans based on scientific research. It adapts to your progress with real-time adjustments and provides detailed exercise tutorials and AI-powered meal scanning to help you achieve your body goals.

Hyper-personalized workoutsProgressive overload guidanceReal-time diet adjustments
💪 Health & Fitness
(5.4K)
free with in-app purchases