21 Days - Be Your Best Self
Musa Mustafa Health & Fitness iPhoneiPadiPod touch
21 Days - Be Your Best Self is a free Health & Fitness app for iPhone and iPad by Musa Mustafa. Requires iOS 18.0. Updated May 12, 2026.
- Price
- Free
- on the App Store
- Size
- 25 MB
- Age 4+
- Updated
- May 12
- 2026 · v1.1.3
Screenshots
About 21 Days - Be Your Best Self
Build better habits in just 21 days. 21 Days is your all-in-one personal growth companion, designed to help you journal your thoughts, track your mood, sharpen your focus, and become the best version of yourself. AI-Powered Journaling Write freely or let our AI guide you with personalised prompts. Reflect deeper, gain clarity, and watch your growth unfold over time. Mood Tracking Check in with yourself daily. Track how you feel, spot patterns, and understand what lifts you up or brings you down. Focus Timer Beat distraction with a built-in Pomodoro focus timer. Stay locked in, get more done, and build a productive daily rhythm. Subliminal Audios Reprogram your mindset with calming subliminal audio sessions designed to reduce stress and rewire your thinking while you relax. App Blocker Take back control of your screen time. Block distracting apps on demand so you can focus on what truly matters. Lunar & Period Tracking Understand your natural rhythms. Track your cycle and lunar phases to live in greater harmony with your body and energy levels. Whether you're building new habits, breaking old ones, or simply trying to feel better every day. 21 Days gives you the tools to make it happen. Terms of Use: https://21days.app/terms
What’s new
Version 1.1.3 · Updated May 12, 2026
Meet Your Highest Self Introducing a brand new AI-powered feature that builds a personalised version of your best self. Answer a quick onboarding questionnaire about your goals, personality, weaknesses, and how you want to be spoken to, then chat with your Highest Self anytime for real, direct guidance tailored specifically to you. Save multiple conversations, start new chats, and pick up where you left off. Emergency Reset When life hits hard, the new Reset tab gives you a guided step-by-step recovery flow. Select what you're going through: anxiety, burnout, heartbreak, anger, and more — and get a personalised reset with breathing exercises, brain dumps, gratitude prompts, and actionable steps to pull you out of a low moment fast. Quick Journal to Calendar Your Quick Journal entries from the home screen now save directly to your calendar, so you can look back and see exactly how you felt on any given day alongside your mood, goals, and events. Other Improvements • Redesigned tab bar layout for a smoother navigation flow • Snowfall and starfield ambient effects across all screens • Keyboard now dismisses on scroll throughout the app • Updated walkthrough guides for new features • Bug fixes
App privacy
The developer, Musa Mustafa, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Contact Info: Email Address, Name
- Identifiers: User ID
- Usage Data: Product Interaction
- User Content: Other User Content
Used for: Developer’s Advertising or Marketing, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Performance Data
Used for: App Functionality
Alternatives to 21 Days - Be Your Best Self
Looking for apps like 21 Days - Be Your Best Self? Here are 6 similar apps on the App Store. The highest rated is Daily Affirmations - Zenith (5.0/5), and all 6 are free to download.
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Lunar Flow
-
Dream Gym AI
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Lunar Flow Cycle
-
Your Best Days
-
Daily Affirmations - Zenith
5.0
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mindspace: Explore Your Mind
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| 21 Days - Be Your Best Self | – | Free | May 12, 2026 | |
| Lunar Flow | – | Free | Feb 4, 2026 | Compare |
| Dream Gym AI | – | Free | Aug 3, 2026 | Compare |
| Lunar Flow Cycle | – | Free | Oct 2, 2026 | Compare |
| Your Best Days | – | Free | Sep 5, 2026 | Compare |
| Daily Affirmations - Zenith | 5.0 / 5 (1) | Free | May 12, 2026 | Compare |
| mindspace: Explore Your Mind | – | Free | May 3, 2026 | Compare |