21 Days Challenge - Habits

Contains adsIn-app purchases
4.7
86.2K reviews
5M+
Downloads
Content rating
Everyone
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About this app

Embark on a Transformative Journey with the 21 Days Challenge!

Unleash your potential and create the life you envision with our life-changing app designed to empower you with transformative habits.

Forge New Habits in Just 21 Days

Harness the power of science-backed research that suggests it takes just 21 days to establish a new habit. Choose from our curated challenges or create your own, and within three weeks, you'll witness the habit seamlessly integrate into your daily routine.

Explore a Universe of Challenges

Discover a plethora of challenges tailored to every aspect of your life:

* Embark on a health and fitness journey
* Disconnect from technology and embrace digital detox
* Cultivate gratitude and positivity
* Master a new language
* Boost your productivity and achieve goals
* Find happiness and fulfillment
* Enhance your self-help skills
* Optimize your study techniques
* Spread kindness and positivity
* Regulate your sleep schedule
* Practice self-care and mindfulness
* Declutter your space and simplify your life
* Build confidence and self-esteem
* Write daily journal prompts and affirmations

Track Your Progress and Reap Rewards

Mark off each completed task and earn points to customize your avatar, unlock motivational reminders, and access exclusive wallpapers.

Connect with a Supportive Community

Share your gratitude reflections in our anonymous feed, where you can connect with others on their transformative journeys. Like, comment, and send gifts to inspire and support each other.

Nourish Your Mind and Body

Maintain a daily journal to track your moods and cultivate a healthier mindset. Choose from a selection of positive wallpapers and motivational reminders to uplift your spirits. Relax and de-stress with our soothing music.

Customize Your Experience

Set notifications to receive daily reminders and stay on track with your challenges. The 21 Days Challenge app is completely free, empowering you to prioritize your well-being without any financial burden.

Start Your Journey Today!

Embark on a path of self-improvement and enhanced mental health. Download the 21 Days Challenge app now and witness the transformative power of positive habits in your life.
Updated on
Mar 20, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Personal info and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.7
84.3K reviews
Erin Held
December 10, 2024
I really like the premise of this app and I've enjoyed the few excersizes I have done so far. My only complaint is that everytime you complete a task, it says "Cancel" in grey or "Share" in bright yellow. It really takes away from the rewarding feeling to have to just say "Cancel". If it said "Complete" or something more satisfying I would give 5 stars. Also white font shouldn't be on a yellow background because it makes it difficult to read.
14 people found this review helpful
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Lee Ann Wasson
February 21, 2021
I like the app, I did pay to go ad free. However, when the blog link is followed, there are ads there & what I just found disturbed me. There were 3 ads for "what to do if he's gone cold", what to text him, etc. "to get him back" in a post for self esteem which includes advice like don't sell yourself short, accept you the way you are, and more.
149 people found this review helpful
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Antoinette Lee
February 1, 2024
This app has really helped me to develop better habits & routines, as well as become a more motivated & positive person. It's also gotten me to start journaling again, which has proved to be very eye-opening. The only complaint I have is that there's no eyebrow customization; you can customize your eyes, skin, mouth, hair, etc., but not the eyebrows. You're stuck with the default eyebrows, that are quite frankly, a bit ugly. If new eyebrow options are added, this would be a 5 star app for me!
65 people found this review helpful
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Kati & Lima
February 13, 2024
Hi :) Delighted our app's helped you develop better habits and positivity! We're taking your feedback on eyebrow customization seriously and aim to enhance this feature. If you're pleased with future updates, we'd appreciate an updated review. Thanks for your input!

What’s new

- Backup now shows progress and clearer error messages
- Hidden Challenges shortcut now opens the full challenge library

"Small steps every day lead to big changes over time."