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App Store Apps > Health & Fitness > 21 Days Challenge
21 Days Challenge icon

21 Days Challenge

by Devashish Puri · Health & Fitness · Free
No longer on the App Store

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.

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Releases

Updates seen on the App Store
Version
1.1
Launched
April 2021

No changelog data

User feedback

Ratings and reviews on the App Store

Comments 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

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.

Share 21 Days Challenge

Store listing

By Devashish Puri, from the App Store
This app is currently not available on the App Store.

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Screenshots of this removed app
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Description by Devashish Puri Written by the developer, not by AppBrain. Click to read.
Ever wondered how long does it take to break a habit?
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
Top new apps Price drops on Google Play Today's trending apps Apps other people are watching Popular Health & Fitness Apps
21-Day Shape-Up Plan icon 21-Day Shape-Up Plan
21 Day Body Transformation icon 21 Day Body Transformation
Habitica: Build Habit & Focus icon Habitica: Build Habit & Focus
Be fit 21 - Home workout app icon Be fit 21 - Home workout app
Full Bodyweight Workout Plan icon Full Bodyweight Workout Plan
Break Free Tracker icon Break Free Tracker
Hard challenge: Daily Habits icon Hard challenge: Daily Habits
Personal Trainer Workout Plans icon Personal Trainer Workout Plans
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