21 Days Challenge

Contains adsIn-app purchases
4.7
81.6K reviews
5M+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Create your ideal life with life-changing habits.
It is estimated that it takes people 21 days to form a new habit. So it’s a perfect amount of time to change or introduce something new in your life. Choose the best challenge for you (or create your own) and do it for 21 days and you’re going to see how the habit becomes part of your lifestyle day by day.

Starting a healthy lifestyle, taking a break away from the internet, practicing gratitude, learning a new language, trying to be more productive, finding happiness, self-help, how to study effectively, ways to spread kindness and positivity, tips for fixing your sleeping schedule, self-care practices, decluttering, being more confident, writing journal prompts and daily positive affirmations are some of the challenges that you can find in the app.
Basically, you can use this app as a habit tracker.

Once you complete your daily task, you can mark it as completed and collect the points (to customize your avatar, to unlock motivational reminders and free wallpapers).

In the gratitude challenge, you can write your thoughts and share them in the feed (it can be anonymous too). Here you're going to see all the community answers and you can also give it a like, comment, or send gifts to your favorite ones.

Create a healthier and happier mind with journaling. With this app, you can write a daily journal and choose your daily mood. Then you can track your mood in the calendar and see all your previous records.

There’s a selection of positive wallpapers for your phone and motivational reminders to share with your friends. Also, some relaxing music.

Enable notifications and choose the time to be notified to remind you to do the challenge every day.

You have all of this in one app for free!

Don’t forget to take care of your body and mind. It's the only place you have to live.

Your journey to self-improvement and better mental health starts today!
Updated on
Jan 8, 2025

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
79.9K 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.
Did you find this helpful?
Vanessa Nir
January 6, 2025
I've been using this app for years, and I absolutely love it; I share my reminders with friends & family all the time and encourage them to download the app as well. It has so many wonderful challenges in different categories of life, and even though the daily reminders are always the favorite part of my day, I especially love the positive mindset articles. I'm someone who downloads apps & rarely uses them, but I look forward to my 21 Day Challenge app reminders every day; it helps make my day.
1 person found this review helpful
Did you find this helpful?
Anna Grace Bonney
August 6, 2020
This app is simply amazing! It's encouraging and rewarding. I love that it gives daily quotes, gives out coins only to accessorize the avatar (effective reward-system) and has a challenge for EVERY day. There are a few spelling/grammar errors on some of the challenges, but it is still clear what they're saying. The app is simple, the challenges are wonderful and encouraging (I've completed 5 sets and only now decided to review), and the system is successful. Thank you for your work, Kita & Lima!
7 people found this review helpful
Did you find this helpful?

What’s new

New improvements.

This is the beginning of anything you want <3