Mono: 30 Day Challenge
30 days to real change
Only for iPhone
Free · Designed for iPhone
iPhone
30 days to finally finish what matters to you.
Mono is your personal challenge space—helping you set goals, track progress, and stay consistent, turning small daily steps into meaningful change.
Whether you're building your first app, writing every day, learning a new skill, or finally taking on that long-term goal—Mono helps you find your rhythm, build momentum, and move forward one step at a time.
Why Mono: • Create your own 30-day challenges
• Daily check-ins and reminders to stay on track
• Log and reflect on your progress
• Clean, distraction-free design to help you focus
Start today. Use 30 days to create real change.
Ratings & Reviews
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Completed another 30 Day Challenge.
The developer, YOU-MING YEH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- YOU-MING YEH
- Size
- 31.5 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 YOU-MING YEH