Best apps like The 50 Day - Project 50 挑战打卡

10+ similar apps compared and reviewed

4.7 avg rating
10 free apps
Updated July 2026

Whether you want more options like The 50 Day or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

simply. nutrition tips

simply. nutrition tips by simply advisory LLC

that help you get healthy.
💪 Health & Fitness
5.0(17 ratings)
FreeIn-App Purchases
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Get daily nutrition tips from certified nutritionists with a subscription to this app, and start your journey to a healthier lifestyle. With features like customizable notifications, saved tips, and a tip tracker, you can easily incorporate healthy habits into your daily life.

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Top Alternatives to The 50 Day

Fitrix - Interval Training#1

Fitrix - Interval Training by Mihail Kuznecovs

HIIT Tabata Timer
Editor's Choice
💪 Health & Fitness
5.0(1 ratings)
FreeIn-App Purchases
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Design your own high-intensity interval training routines with custom exercises and personalized intervals. Track your calorie burn and heart rate to stay motivated and achieve your fitness goals. Tailor your workouts to your unique needs and objectives.

FrogCount - Habit Tracker#2

FrogCount - Habit Tracker by 帆 邱

Goal Tracker & ADHD Planner
Strong Contender
💪 Health & Fitness
5.0(45 ratings)
FreeIn-App Purchases
FrogCount - Habit Tracker screenshot 1
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This app helps you build positive routines and track your progress with a gamified approach. Earn rewards, visualize your achievements with charts, and stay motivated with smart reminders and customizable widgets. It offers various tracking modes to suit your needs.

More apps like The 50 Day

4
Stand Up & Stretch
Stand Up & Stretch
Stand Up & Stretch
Chair Workouts & Flexibility
Free
💪 Health & Fitness
(0)
5
Somno - AI Sleep Tracker
Somno - AI Sleep Tracker
Somno - AI Sleep Tracker
Smart Alarm · Nap · Sleep Lock
Free

This app monitors your sleep using AI and smart wearables, providing detailed analysis and science-based improvement plans. It features a smart alarm, nap tracking, and app locking to enhance sleep hygiene. Visualize your sleep patterns and understand how daily habits impact your rest.

AI sleep analysis and improvement plansSmart wake-up alarm during light sleepAccurate nap tracking
💪 Health & Fitness
(468)
subscription
6
Bodyfat Calculator 3
Bodyfat Calculator 3
Bodyfat Calculator 3
Curious about your body fat %?
Free

Easily estimate your body fat percentage using simple measurements like waist circumference and weight. The app provides lean and fat mass values, BMI, and categorizes your body fat level. It supports multiple calculation methods and unit systems.

Body fat percentage calculationLean and fat mass displayBMI and Waist to Height Ratio
💪 Health & Fitness
(6)
free
7
Gym Body Tracker - Camera
Gym Body Tracker - Camera
Gym Body Tracker - Camera
Weight Loss & BMI Journal
Free

Track your fitness progress with photo and metric logging. Visualize your transformation with a gallery and video maker. Stay motivated with reminders and a home screen widget.

Consistent photo tracking with overlay toolPersonalized transformation galleryDetailed body metrics logging
💪 Health & Fitness
(5)
free with in-app purchases
8
Slo: Brown Noise
Slo: Brown Noise
Slo: Brown Noise
Sleep Sounds, Sound Machine
Free

This app offers a variety of scientifically proven sleep sounds, including brown, white, and pink noise, as well as nature sounds like rain and ocean waves. It helps users fall asleep faster, improve focus, reduce stress, and aid meditation with its high-quality audio and customizable features.

Brown, white, and pink noise optionsNature sounds (rain, ocean waves)Timer functionality
💪 Health & Fitness
(60)
free with in-app purchases
9
MarkTimes -日常记录、习惯打卡、健康记录、Keep
MarkTimes -日常记录、习惯打卡、健康记录、Keep
MarkTimes -日常记录、习惯打卡、健康记录、Keep
运动健身、学习打卡、习惯追踪、饮食笔记、自律养成、频次统计
Free

Easily record and track life events and health issues. Visualize your history with timelines and statistical charts to understand trends. Set reminders to ensure consistent tracking and maintain privacy with local or iCloud synced data.

Event and health issue trackingTimeline and calendar viewStatistical charts for trend analysis
💪 Health & Fitness
(48)
freemium
10
SunAlly
SunAlly
SunAlly
Sun Exposure &VitD Enhancement
Free

This app helps you optimize your time outdoors for health benefits like vitamin D synthesis and improved well-being. It provides personalized recommendations, real-time UV monitoring, and smart reminders for safe and beneficial sun exposure.

Optimal outdoor activity time recommendationsReal-time UV level monitoringSmart UV risk prevention reminders
💪 Health & Fitness
(9)
freemium