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Last updated on: 2026-09-26
Android Apps > Productivity > 21 Days Challenge - Habit App
21 Days Challenge - Habit App icon

21 Days Challenge - Habit App

1.3.1
DeviationApps
3.75
225 reviews
100,000+
Downloads
Free

Changing habits is a battle, and picking up the right tool is a battle half won.

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Download from Google Play

About 21 Days Challenge - Habit App

21 Days Challenge - Habit App is a productivity app developed by DeviationApps.

Download Statistics

21 Days Challenge - Habit App has been downloaded 110 thousand times. In the last 30 days, the app was downloaded 19 times.

User Ratings

21 Days Challenge - Habit App is rated 3.75 out of 5 stars. The rating is based on 230 ratings.

App Information

21 Days Challenge - Habit App is FREE to download. The APK download size is 21.31 MB. The latest version available is 1.3.1. The last update was on October 29, 2023.

Technical Requirements

21 Days Challenge - Habit App requires Android 4.1+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since August 2019.

Description
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 visualise your progress
6. Animations to lighten up the mood

Recent changes:
Updates as per new policy requirements
Show more Show less

More data about 21 Days Challenge - Habit App

Price Free to download
Total downloads 110 thousand
Recent downloads 19
Rating 3.75 based on 230 ratings
Ranking Not ranked
Version 1.3.1
APK size 21.3 MB
Number of libraries 17
Designed for Android 4.1+
Suitable for Everyone
Ads NO ads

App Performance Report

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Google Play Rating history and histogram

Rating history
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110
0
84
0
28

Downloads over time

Downloads over time
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21 Days Challenge - Habit App has been downloaded 110 thousand times. Over the past 30 days, it has been downloaded 19 times.

Changelog of 21 Days Challenge - Habit App

Show changelog

Developer information for DeviationApps

DeviationApps

dpsoftgamesindia95@gmail.com

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Comments on 21 Days Challenge - Habit App for Android

★★★★☆ Tuba · Apr 6, 2023
I love the simple design of this app, but it really needs some fixes as at has a feature to set a reminder that reminder feature didn't worked at all for me, I set time & I get no notification reminder at all I just hope you fix this problem soon
★★★★☆ Ahmed Nadeem · Jan 23, 2022
Good app....but can't be edit....if I set a goal and try to correct misspell I can't and if I mistakenly set the day completed and later want to undo this.....there is no option to edit it....
★★★★★ Ritamaria Saleh · Apr 3, 2021
It really encourages you to achieve your goals it is so easy to use and so useful Love this app❤
★★★★★ Erhan · Jan 25, 2021
I like this app because It's simple and straightforward. I just want to say few things would make it better: Being able to mark as complete any day should be possible. If I already started a challenge, I would like to mark previous days completed. Alarm feature should be optional. Adding comments to the challenges. It could be daily notes or just plain text. Calendar view. Successful days acsm be green, others red, maybe. Settings for profile. There are some other things but character limit.
★★☆☆☆ Yolandi 3 · Feb 26, 2021
Very simple and easy to use, but the app restarted my progress and now all my goals show that there are 13 days left, when there isn't. It worked so well in the beginning, but now I wasted my time with the app.
★★☆☆☆ Ashley Dion · Apr 30, 2021
I was using the app fine for a few weeks; it is simple to use, and the reminders are helpful. But despite the requested time for a reminder, I have started getting reminders much too late in the day. At first, it was just off by an hour or so but lately I have been getting notifications for all my goals at the same time at the end of the day.

Google Play Rankings for 21 Days Challenge - Habit App

This app is not ranked

Technologies used by 21 Days Challenge - Habit App

8 permissions · 17 libraries
Subscribe to see full permission and library details

Frequently asked questions about 21 Days Challenge - Habit App

Is 21 Days Challenge - Habit App free?

Yes. 21 Days Challenge - Habit App is free to download from Google Play.

Is 21 Days Challenge - Habit App still available?

Yes. 21 Days Challenge - Habit App is on Google Play, and the last update we saw was on October 29, 2023.

Does 21 Days Challenge - Habit App contain ads?

No. Google Play does not list 21 Days Challenge - Habit App as containing ads.

What Android version does 21 Days Challenge - Habit App require?

21 Days Challenge - Habit App runs on Android 4.1 and higher.

How large is the 21 Days Challenge - Habit App APK?

The 21 Days Challenge - Habit App APK is 21.31 MB.

Is 21 Days Challenge - Habit App suitable for children?

Google Play rates the content of 21 Days Challenge - Habit App as suitable for everyone.

How many times has 21 Days Challenge - Habit App been downloaded?

Google Play lists 100,000+ downloads for 21 Days Challenge - Habit App.

How do people rate 21 Days Challenge - Habit App?

21 Days Challenge - Habit App scores 3.75 out of 5 stars, from 225 ratings on Google Play.

Who made 21 Days Challenge - Habit App?

21 Days Challenge - Habit App was developed by DeviationApps. It is listed in the productivity category on Google Play.

What are the best alternatives to 21 Days Challenge - Habit App?

People looking at 21 Days Challenge - Habit App also look at these productivity apps: Simple Habit Tracker - Habits, Day counter: bad habits, Freedom - Bad Habit Tracker, Habit Tracker - HabitKit, Quit Bad Habits & Addiction.

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