Evolve21 vs The Underbelly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Evolve21
Engage in a 21-day wellness program with daily 7-minute routines in cardio, yoga, or meditation. Track your progress, earn awards, and support the Cerebral Palsy Foundation. Customize your fundraising page to involve friends and family in your journey and impact.
- Daily 7-minute routines
- Cardio, Yoga, Meditation options
- Progress tracking
- Achievement awards
- Fundraising customization
- Group participation
Read full descriptionHide full description
Evolve 21: The CPF Challenge Evolve 21 lets you participate in a thoughtful, state-of-the art wellness program which will change the way you see yourself and the world. And while you do, the app also allows you to help support the Cerebral Palsy Foundation, whose work is changing the world for people with disabilities. Each day, choose a simple seven minute routine of cardio exercise, yoga, or meditation. Track your progress for 21 days and unlock achievement awards that show your evolution. All the programs are designed by experts to help you really make a difference in your health and well-being. Evolve 21 is also designed to make it easy to raise dollars from friends, family members, and professional colleagues. With a simple email or photo, show people effort you're making and the impact you're having. And ask them to help. You'll be amazing at the support you'll feel. Every hour another child is born with CP. In just 7 minutes, you can help make their lives better. Evolve 21 lets you choose from all these 7 minute workouts! - Cardio (High Intensity, Agility, or Strength) - Yoga (Balance, Tone, Flow) - Meditation (about 7 minutes each) Choose one type of program, or mix them up daily. All areas have adaptive exercises to address a variety of abilities and disabilities. Select the exercises that feel right for you and we’ll build a daily workout around YOUR needs! MAKE IT A GROUP EFFORT Invite friends and family to: 1. Support your efforts 2. Do Evolve 21 with you. MAXIMIZE YOUR IMPACT Customize your fundraising page: 1. Customize your message 2. Set fundraising goals 3. Add photos
The Underbelly
This app offers inclusive yoga and meditation sessions for all bodies and skill levels. Explore guided practices, breathwork, and soothing playlists to enhance flexibility, self-love, and holistic well-being. Practice anytime, anywhere in a welcoming environment.
- 200+ inclusive yoga classes
- Queer-friendly environment
- Guided sessions for all levels
- Meditation and breathwork playlists
- Monthly livestream classes
- Ad-free streaming videos
Read full descriptionHide full description
Embark on a transformative wellness journey with our inclusive Yoga & Meditation app - celebrating all bodies. Discover your inner teacher through beginner-friendly sessions, designed for flexibility, self-love, and holistic well-being. Practice yoga and mindfulness anytime, anywhere. Explore a diverse range of guided sessions and create a practice that fits your personal needs and daily schedule. Our unique features include soothing meditation and breathwork playlists to uplift your spirits and relieve stress. Elevate your yoga experience with us – embrace balance and inner peace, farts and anger. Key Features: • 200+ inclusive yoga classes for all body types • Queer-friendly and welcoming environment, great for all ages • Beginner, intermediate and expert-friendly guided sessions • Relaxing meditation playlists to help calm your body and mind • Monthly livestream classes directly through the app • No ads or distractions, just beautiful streaming videos To access all features and content you can subscribe to The Underbelly on a monthly or yearly basis with an auto-renewing subscription right inside the app.* Pricing can vary by region and will be confirmed before purchase in the app. In app subscriptions will automatically renew at the end of their cycle. * All payments will be paid through your iTunes Account and may be managed under Account Settings after the initial payment. Subscription payments will automatically renew unless deactivated at least 24-hours before the end of the current cycle. Your account will be charged for renewal at least 24-hours prior to the end of the current cycle. Any unused portion of your free trial will be forfeited upon payment. Cancellations are incurred by disabling auto-renewal. Terms of Service: https://browse.theunderbelly.com/tos Privacy Policy: https://browse.theunderbelly.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: The Underbelly at 99% against Evolve21's 36%. The Underbelly also leads on rating (4.9 vs 3.8) and ratings volume (792 vs 6). Evolve21's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. The Underbelly sells 2 in-app purchases, starting at $19.99 per month. Evolve21 asks for nothing beyond the download.
The Underbelly holds the better App Store score, 4.9 against 3.8. That said, the two scores are not equally well evidenced: The Underbelly has 792 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 36% of Evolve21's written reviews are positive against 99% of The Underbelly's.
Evolve21 ships an update every 3 days, The Underbelly every 2 months. Both last shipped on October 12, 2026.
| Parameter | Evolve21 | The Underbelly |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (6 ratings) | 4.9 (792 ratings) — better |
| Positive reviews | 36.4% of reviews | 98.5% of reviews — better |
| Number of ratings | 6 | 792 — better |
| Update frequency | Every 3 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPod | iPhone, iPad, Apple TV — better |
| Requires iOS | 10.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 246 MB | 98 MB |
| Age rating | 12+ | 12+ |
| Developer | Cerebral Palsy Foundation | Fearless LLC |
Customer experience
Evolve21
The Underbelly
In-app purchases
Evolve21
No in-app purchases
The Underbelly
- Underbelly Monthly7 Days trial$19.991 Month
- The Underbelly Yearly7 Days trial$179.991 Year
Questions
Is Evolve21 free?
Is The Underbelly free?
Which has better reviews, Evolve21 or The Underbelly?
Do Evolve21 or The Underbelly have ads?
Which is updated more often, Evolve21 or The Underbelly?
Other comparisons















