Muscle Sisters vs IBurn55
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Muscle Sisters
Access personalized monthly fitness programs designed by expert trainers to help you build muscle, gain strength, or lose weight. Follow along with guided video workouts that last 45-60 minutes, offering a comprehensive training experience from warm-up to cool-down.
- Personalized monthly fitness programs
- Guided video workouts
- Strength training
- Muscle building
- Weight loss programs
- Home or gym training options
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Welcome to the Muscle Sisters App! A monthly subscription that gives you power to train on your own terms and unleash your inner strength. Each program is strategically created to help you achieve your specific goals, whether it's building muscle, gaining strength, or losing weight. Andre and Patty will personally guide you through each workout. These videos typically last around 45-60 minutes, giving you a comprehensive and immersive training experience. From warm-up to cool-down, they'll be there with you, pushing you to reach your full potential. Train in the comfort of your own home or push yourself to the limits at the gym – the choice is yours. Join the Muscle Sisters App today and start a transformative fitness adventure. Unleash your strength, achieve your goals, and become the best version of yourself with the guidance and support of Andre and Patty. Let's sweat, grow, and inspire together! The Muscle Sisters App is here to support you every step of the way. [Privacy Policy](https://www.musclesistersapp.com/privacy-policy) - Read our privacy policy. [Terms of Use](https://www.musclesistersapp.com/terms) - Read our terms of use.
IBurn55
Easily book fitness classes and manage your entire fitness experience on the go. Make reservations, join waitlists, purchase class packages, and check your membership status. Stay updated on the latest products and services directly from your device.
- Book classes
- Manage reservations
- Join waitlists
- Purchase class packages
- Check profile and membership
- View latest products and services
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Download the IBurn55 app to easily book classes and manage your fitness experience - anytime, anywhere. Make a reservation, get added to a wait list, purchase class packages, check your profile and membership status, keep up to date with the latest products and services, and more – all from your device. Visit https://iburn55.com/ to learn more.
Screenshots
Verdict
The clearest difference is in-app purchases: IBurn55 at none against Muscle Sisters's 4. IBurn55 also leads on rating (5.0 vs 4.5). Muscle Sisters's advantage is update cadence (fortnightly vs every 10 months) and ratings volume (117 vs 3). 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. Muscle Sisters sells 4 in-app purchases, starting at $19.99 per month. IBurn55 asks for nothing beyond the download.
IBurn55 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Muscle Sisters has 117 ratings behind it against 3, so its average is the more settled of the two.
Muscle Sisters ships an update fortnightly, IBurn55 every 10 months. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.
| Parameter | Muscle Sisters | IBurn55 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (117 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 78.9% of reviews | — |
| Number of ratings | 117 — better | 3 |
| Update frequency | Fortnightly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 45 MB | 31 MB |
| Age rating | 12+ | 4+ |
| Developer | Muscle Sisters, LLC | Iburn55 LLC |
Customer experience
Muscle Sisters
IBurn55
In-app purchases
Muscle Sisters
- Monthly1 Month trial$19.991 Month
- Annual3 Days trial$159.001 Year
- Monthly$29.99
- Annual$179.99
IBurn55
No in-app purchases
