# The 21 Days Challenge vs Ozee

The 21 Days Challenge and Ozee both sit at 4.7 stars, but that hides the real split: 92% of The 21 Days Challenge's written reviews are positive against 13% of Ozee's. Ozee's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. The 21 Days Challenge sells 2 in-app purchases, starting at $2.99 per month. Ozee asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for The 21 Days Challenge against 4.6 for Ozee. Both are backed by a comparable volume of ratings — 575 and 637 respectively. Written reviews are what separate them: 92% of The 21 Days Challenge's written reviews are positive against 13% of Ozee's.

The 21 Days Challenge ships an update every 4 weeks, Ozee every 2 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | The 21 Days Challenge | Ozee |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (575 ratings)](https://appshunter.io/ios/app/the-21-days-challenge/id1485458184/reviews)** | [4.6 (637 ratings)](https://appshunter.io/ios/app/ozee/id6453475297/reviews) |
| Number of ratings | 575 | **637** |
| Positive reviews | **92.1% of reviews** | 12.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 128 MB | 101 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kati Pereira](https://appshunter.io/developer/1697931524) | [Ozee LTD.](https://appshunter.io/developer/1549672591) |

## What reviewers say

### The 21 Days Challenge

[App page](https://appshunter.io/ios/app/the-21-days-challenge/id1485458184)

Build life-changing habits with guided 21-day challenges. Track progress, journal your thoughts, and customize your avatar with earned points. Improve your mental well-being and create a happier lifestyle.

**Highlights:** Guided 21-day habit challenges, Daily journaling and mood tracking, Avatar customization with earned points, Community feed for gratitude sharing, Positive affirmations and wallpapers, Daily task completion tracking, Customizable daily reminders

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads month | $2.99 | per month |
| Remove Ads Year | $24.99 | per year |

**What reviewers like**

- 🚀 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

**What reviewers complain about**

- 🔍 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

**Reported bugs**

- Sharing created challenges does not work as expected
- Challenges sometimes disappear from the app

**Requested features**

- Add a search function for community challenges
- Allow users to save and revisit their own created challenges
- Provide more customization options for the app and user profile
- Introduce a widget for easier access to daily tasks


### Ozee

[App page](https://appshunter.io/ios/app/ozee/id6453475297)

This app connects women with qualified beauty and spa specialists for in-home services. It aims to provide professional, specialized, and safe wellness experiences.

**Highlights:** In-home beauty services, Spa treatments, Qualified specialists, Professional and safe experience, General well-being services

**Features:** Apple Wallet, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👩‍💼 Professional and skilled staff members
- ✨ High-quality service results
- ⏰ Respectful of appointment times (when service is delivered)
- 💆 Relaxing and satisfying massage experience

**What reviewers complain about**

- ⏱️ Chronic delays of 30 minutes to 2+ hours
- 📱 Unresponsive customer service
- 💳 Unfair refund policies with unexplained deductions
- 🚫 Failure to show up for appointments
- 💰 Overpriced services

**Reported bugs**

- App update erased existing gift credits without recovery option
- Unexplained wallet balance deductions
- Appointment scheduling system overbooks technicians
- Customer service response system is slow and ineffective

**Requested features**

- Real-time appointment status tracking
- Direct phone support in addition to app messaging
- Automatic refunds to bank accounts instead of wallet credits
- Transparent pricing breakdown
- Improved appointment scheduling system with better capacity management


## Frequently asked questions

### Is The 21 Days Challenge free?

The 21 Days Challenge is free to download, with in-app purchases available.

### Is Ozee free?

Ozee is free to download, with no in-app purchases.

### Which has better reviews, The 21 Days Challenge or Ozee?

The 21 Days Challenge is rated higher. The 21 Days Challenge averages 4.7 out of 5 from 575 ratings, while Ozee averages 4.6 from 637 ratings.

### Do The 21 Days Challenge or Ozee have ads?

The 21 Days Challenge shows ads; Ozee does not.

### Which is updated more often, The 21 Days Challenge or Ozee?

The 21 Days Challenge ships an update every 4 weeks, and Ozee every 2 weeks. Most recently, The 21 Days Challenge was updated on November 7, 2026 and Ozee on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*