21 Days Challenge
Kati & Lima Lifestyle In-app purchases Contains ads
21 days it’s the perfect time to change or introduce something new in your life.
- Rating
- 4.7
- 92.7K ratings
- Downloads
- 10.8M+
- on Google Play
- Price
- Free
- In-app purchases
- Updated
- Oct 8
- 2026 · v8.7.23
Screenshots
About 21 Days Challenge
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 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, trying to be more productive, simple practices to find happiness and calm in your life, how to study effectively for all the students are some of the challenges that you can find on this app.
There's also a new self-care quarantine and a home workout challenge due to what it's happening currently in the world.
Once you complete your daily task, you can mark as checked and collect the points (to build your avatar). This way, you can use this app like a habit tracker.
In the gratitude challenge, you can write your thoughts and share them in the feed (you can leave anonymously too). Here you're going to see all the community answers and you can also give it a like on your favourite ones.
Complete tasks on your profile and do daily challenges to collect points so you can buy items for your own avatar like different hairstyles, eyes and mouth shapes and clothes.
Enable notifications and choose the time to be notified to remind you to do the challenge every day.
Don’t forget to take care of your body and mind. It's the only place you have to live.
Starting a healthy lifestyle, taking a break away from the internet, practicing gratitude, trying to be more productive, simple practices to find happiness and calm in your life, how to study effectively for all the students are some of the challenges that you can find on this app.
There's also a new self-care quarantine and a home workout challenge due to what it's happening currently in the world.
Once you complete your daily task, you can mark as checked and collect the points (to build your avatar). This way, you can use this app like a habit tracker.
In the gratitude challenge, you can write your thoughts and share them in the feed (you can leave anonymously too). Here you're going to see all the community answers and you can also give it a like on your favourite ones.
Complete tasks on your profile and do daily challenges to collect points so you can buy items for your own avatar like different hairstyles, eyes and mouth shapes and clothes.
Enable notifications and choose the time to be notified to remind you to do the challenge every day.
Don’t forget to take care of your body and mind. It's the only place you have to live.
What’s new
Version 8.7.23 · Updated October 8, 2026
✨ Smoother and steadier Behind-the-scenes improvements to keep your days running smoothly, in all 11 languages. "We are what we repeatedly do. Excellence, then, is not an act, but a habit." — Will Durant
User reviews
No words.UwU best app ever
Useful
Very good. :)))) it's . Good
Easy to use, lots of fun ❤️
Nice app. Enjoying the task
This app is free, helpful and fun. A great app for being happy!
Frequently asked questions
How long does it take for people to form a new habit?
It is estimated that it takes 21 days for people to form a new habit.
What are some challenges available on the app?
Some challenges available on the app include starting a healthy lifestyle, taking a break from the internet, practicing gratitude, trying to be more productive, and simple practices to find happiness and calm in your life. There are also challenges for studying effectively, self-care during quarantine, and home workouts.
How can I track my progress?
You can track your progress by marking your daily tasks as checked and collecting points. These points can be used to build your own avatar.
What can I do in the gratitude challenge?
In the gratitude challenge, you can write your thoughts and share them in the feed. You can also see all the community answers and give a like to your favorite ones.
What can I buy with the points I collect?
With the points you collect, you can buy items for your own avatar such as different hairstyles, eyes and mouth shapes, and clothes.
How can I be reminded to do the challenge every day?
You can enable notifications on the app and choose the time to be notified, reminding you to do the challenge every day.
What is the importance of taking care of your body and mind?
Taking care of your body and mind is important because it is the only place you have to live.
Alternatives to 21 Days Challenge
Looking for apps like 21 Days Challenge? Here are 6 similar Android apps on Google Play. The highest rated is Gratitude: Self-Care Journal (4.9/5), and all 6 are free to download.
-
Gratitude: Self-Care Journal 4.9
-
Fabulous Daily Routine Planner 4.4
-
BetterMe: Mental Health 4.4
-
21 Days Habit Challenges 4.5
-
Habit Tracker - Habit Diary 4.7
-
HabitNow Daily Routine Planner 4.7
| App | Rating | Price | Installs | Last updated | Compare |
|---|---|---|---|---|---|
| 21 Days Challenge | 4.7 / 5 | Free | 10,000,000+ | Oct 8, 2026 | |
| Gratitude: Self-Care Journal | 4.9 / 5 | Free | 5,000,000+ | Oct 26, 2026 | Compare |
| Fabulous Daily Routine Planner | 4.4 / 5 | Free | 10,000,000+ | Sep 29, 2026 | Compare |
| BetterMe: Mental Health | 4.4 / 5 | Free | 5,000,000+ | Oct 7, 2026 | Compare |
| 21 Days Habit Challenges | 4.5 / 5 | Free | 1,000,000+ | May 25, 2026 | Compare |
| Habit Tracker - Habit Diary | 4.7 / 5 | Free | 10,000,000+ | Oct 10, 2026 | Compare |
| HabitNow Daily Routine Planner | 4.7 / 5 | Free | 5,000,000+ | Jul 26, 2026 | Compare |
Compare 21 Days Challenge with the top alternatives: ratings, updates, ASO score and keyword gaps →
Similar apps on Google Play
- Gratitude: Self-Care Journal
- Fabulous Daily Routine Planner
- BetterMe: Mental Health
- 21 Days Habit Challenges
- Habit Tracker - Habit Diary
- HabitNow Daily Routine Planner
- Balance: Meditation & Sleep
- Intellect: Create A Better You
- Evolve: Self-Care & Meditation
- Sectograph. Day & Time planner
- Mood Tracker: Self-Care Habits
- Amaha (InnerHour): self-care
- I am - Daily affirmations
- Voice – Mental Health Guide
- Rabit: Habit Tracker & Planner
- Headway: Fun & Easy Growth
- Motivation - Daily quotes
- MyBubble: Mood Tracker Journal
- Finch: Self Care Widget Pet
- 29k: Mental Health & Wellbeing
- To-Do List - Schedule Planner
- Mind journal: Diary, Mood trac
- Three Good Things
- Unmind
- Remente: Self Care, Wellbeing
- Vocabulary - Learn new words
- Medito: Meditation & Sleep
- Deepstash: Smarter Every Day!
- being: my mental health friend
- Daylio Journal - Mood Tracker
- VOS: Well-being Plan & Journal
- Mindvalley: Self-Improvement
- Tusk: task and habit manager
- Routinery: Self-Care/Routine
- Start Change: Achieve Your Res
- Habit Tracker Planner HabitYou
- Success Coach - Life Planner
- Habit Tracker
- Sensa
- Mindset: Daily Motivation
- Habitica: Gamify Your Tasks
- Insight Timer - Meditation App
- Body Language | Psychology
- Mood Tracker Journal
- Habitify: Simple Habit Tracker
- Productive - Habit tracker
- BetterMe: Health Coaching
- MindDoc: Your Companion
- Loop Habit Tracker
- Hevy - Gym Log Workout Tracker
- Reflectly: Mood Tracker Diary
- The Mindfulness App
- Simple Habit: Meditation
- My True Value: Grow self-worth
- Forest: Focus for Productivity
- Mindspa: The Mental Health App
- Cheerly: Daily Self-Care Game
- The Tapping Solution
- Avocation Goal & Habit Tracker
- Habio - Simple Habit Tracker
- Face Massage, Skincare: forYou
- Rootd - Anxiety & Panic Relief
- Growth Mindset AI Coach Rocky
- Daily Yoga: Fitness+Meditation
- Morning Routine: Wake Up Alarm
- School Planner
- Prompted Journal
- Time Planner: Schedule & Tasks
- Justly: Systems, Habits, Goals
- Mooditude: Mental Health App
- ThinkUp - Daily Affirmations
- Wizdom: Self Growth Challenge
- Habit360 Habit Tracker & To-do
- DailyLife - My Diary, Journal
- Blinkist: Big Ideas in 15 Min
- BetterHelp - Therapy
- Day One Journal: Private Diary
- Dreamfora: Daily Goal Setting
- Notion - notes, docs, tasks
- CBT Companion: Therapy app
- IAmEars for Anxiety & Stress
- Thera: Diary and mood tracker
- Focus To-Do: Pomodoro & Tasks
- Smiling Mind
- Glan: Productivity focus timer
- MultiNotes - Reminder Notes
- MindTales - Self Care, Therapy
- Fastic - Intermittent Fasting
- CBT Thought Diary
- Fasting - Intermittent Fasting
- My Vision Board | Manifestie
- LiveMore Personal Development
- BodyFast Intermittent Fasting
- GoFasting Intermittent Fasting
- Presently: A Gratitude Journal
- To Do List with Reminder
- Custom Bullet Journal, Prompts
- I am: Positive Affirmations
- TickTick:To-do list & Tasks
- minimalist phone: Productivity