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The 21 Days Challenge

The 21 Days Challenge

Introduce life changing habits

499 ratings
182 reviews
With Ads
🌟 Lifestyle
📊 Productivity
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • November 7, 2019
  • May 14, 2026

Features

Developer

Kati Pereira
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🧾$1.99 - $17.99
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❓5 answered
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About

Build lasting habits and transform your life over 21 days with guided challenges. Track your progress, journal your thoughts, and customize your avatar with earned points. Discover new routines for health, productivity, and happiness.

✓21-day habit challenges
✓Habit tracking
✓Avatar customization
✓Daily journaling
✓Mood tracking
✓Community feed
✓Positive affirmations
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What users say

Summarized from real user reviews of The 21 Days Challenge. Based on 499 reviews and a 4.7/5 average, it highlights the 6 positives and 4 negatives reviewers mention most about this Lifestyle app.

Positive things

  • 🚀Simple and motivating
  • 👍Clean design and clear progress tracking
  • 🤗Genuinely helpful and enjoyable to use
  • 💫Positive impact on mental health and habits
  • 🌟Inspirational and encouraging messages
  • 🌱Helps build healthy routines

Negative things

  • 🔍Lack of search option in community challenges
  • 🔀Challenges disappear after creation, no way to find them
  • 🤖Too many ads interrupting the experience
  • 🎨App could use more customization options
See all reviews

What's New in The 21 Days Challenge

8.6.5

May 14, 2026

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Subscription plans

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User reviews

Most RecentHighest RatedLowest Rated

Forcing me towards Quran

It keeps on giving advertisements and thats fine but the adds were only of Quran AI and its somehow trying to manipulate people towards Quran by showing the same add atleast 3-4 times a day for prolonged time. Manipulative app.
NfuyevckNfuyevck

Helpful

The best app! Helps me a lot and the reminders that gives me every day, makes my life better
SusDanfSusDanf

Lovey

It was so goos
Saddia AhmadiSaddia Ahmadi

Spreads Positivity

This app inspires me to rise and shine every single day. This has a lot of meaning to my life in unknown ways.
Viren_2002Viren_2002

Excellent

I love this app with quotes and activities suggestions
Choco PatuzzoChoco Patuzzo
See 177 more reviews

User experience

🐞

Reported Bugs

2 issues

Sharing created challenges does not work as expected

Bug

Challenges sometimes disappear from the app

Bug
✨

Requested Features

4 requests

Add a search function for community challenges

Feature

Allow users to save and revisit their own created challenges

Feature

Provide more customization options for the app and user profile

Feature

Introduce a widget for easier access to daily tasks

Feature

FAQ

What is the 21 Days Challenge app?

The 21 Days Challenge app helps users introduce and build life-changing habits over a 21-day period. It offers various challenges focused on health, productivity, happiness, and more. Users can track their progress, journal their experiences, and engage with a community.

What kind of challenges can I find in the app?

The app offers a diverse range of challenges, including starting a healthy lifestyle, taking breaks from the internet, practicing gratitude, improving productivity, finding happiness and calm, studying effectively, spreading kindness, and fixing sleep schedules. It also includes daily positive affirmations.

How does the habit tracking and avatar customization work?

You can mark your daily tasks as completed to earn points. These points can then be used to customize your avatar with various items like hairstyles, eyes, mouth shapes, and clothes, making it a gamified habit tracker.

Is the app free to use?

The app is free to download and use, but it does offer in-app purchases and has advertisements. This means you can access core features without cost, but may choose to spend money for additional customization options or an ad-free experience.

Can I use this app to improve my mental well-being?

Yes, the app supports mental well-being through features like daily journaling, mood tracking, and practicing gratitude. You can also find challenges focused on finding happiness, calm, and positive affirmations to cultivate a healthier mind.