21 Days Challenge is made and published by Devashish Puri. AppBrain is an independent app data site and isn't affiliated with Devashish Puri. The app name, icon, screenshots and description belong to Devashish Puri and are shown as published on the App Store.
AppBrain's verdict
Removed- Rating on App Store
- 5.00
- 4 ratings
- Last updated
- May 30, 2021
21 Days Challenge is no longer on the App Store. It had too few ratings to say what users thought.
Competitors
Similar apps and more from Devashish PuriMore from Devashish Puri
Releases
Updates seen on the App Store- Version
- 1.1
- Launched
- April 2021
No changelog data
User feedback
Ratings and reviews on the App StoreComments on 21 Days Challenge for iOS
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 35.7 MB
- Content rating
- Everyone
Technologies used by 21 Days Challenge
About the app and developer
About 21 Days Challenge
21 Days Challenge was a health & fitness app developed by Devashish Puri. It was removed from the App Store Oct 14, 2025.
User Ratings
21 Days Challenge was rated 5.00 out of 5 stars, based on 4 ratings.
App Information
21 Days Challenge was free. The app size was 35.71 MB. The last available version was 1.1. The last update was on May 30, 2021.
Technical Requirements
The app had a content rating of Everyone. The app had been available on the App Store since April 2021.
Developer information for Devashish Puri
Address:
Frequently asked questions about 21 Days Challenge
Is 21 Days Challenge free?
Yes. 21 Days Challenge was free on the App Store.
Is 21 Days Challenge still available?
No. 21 Days Challenge was removed from the App Store. We last saw it there Oct 14, 2025.
How large is 21 Days Challenge?
21 Days Challenge is 35.71 MB.
Is 21 Days Challenge suitable for children?
App Store rates the content of 21 Days Challenge as suitable for everyone.
How do people rate 21 Days Challenge?
21 Days Challenge scored 5.00 out of 5 stars, from 4 ratings on the App Store.
Who made 21 Days Challenge?
21 Days Challenge was developed by Devashish Puri. It was listed in the health & fitness category on the App Store.
What are the best alternatives to 21 Days Challenge?
People looking at 21 Days Challenge also look at these health & fitness apps: 21-Day Shape-Up Plan, 21 Day Body Transformation, Habitica: Build Habit & Focus, Be fit 21 - Home workout app, Full Bodyweight Workout Plan.
Store listing
By Devashish Puri, from the App StoreSimilar apps
Description by Devashish Puri Written by the developer, not by AppBrain. Click to read.
Scientists and leading psychology research suggest that it takes us around 21 days to break or form a new habit.
This means doing a good thing (eating clean, exercising daily) can become your habit if done 21 days in a row.
And Bestselling Book “Power of Habit by Charles Duhigg” suggests that an old bad habit cannot be extinguished in a day, but can only be replaced with a new good habit in 21 days period.
So if you want to Quit Smoking? Lose Weight by eating clean? Quit eating junk food? Exercise daily? Go to Gym daily?
Just do it for 21 days straight and our app allows you to record your golden age of lifestyle transformation.
How does it work?
To transform your lifestyle and create new good habits :
Add a new goal that you want to pursue
Replace it with a bad habit that you want to quit or extinguish
Set reminder for the time you may want to be reminded
Tap on Mark as Completed if you did it and if you couldn’t do it somehow, restart it!
New Habits You Can Build with our App
1. Quit Smoking
2. 21 Days of No Fap
3. 21 Days of No Sugar
4. 21 Days of Intermittent Fasting
5. 21 Days of Eating Clean
6. 21 Days of Reading a book
7. 21 Days of Being Early Bird
8. 21 Days of Code
9. 21 Days of Journaling
10. 21 Days of Yoga
Features that you may like
1. Powerful reminders with flexible scheduling
2. Updating goals doesn’t take more than a minute
3. Create a new avatar for your new lifestyle
4. Replace your bad habits with new habits
5. Calendar view to visualize your progress
6. Animations to lighten up the mood