JustStretch | Flex & Mobility vs MuscleUp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JustStretch | Flex & Mobility
This app helps you build a daily stretching habit to improve flexibility, relieve pain, and boost overall well-being. It offers guided routines, custom workout creation, and multimedia instructions for all fitness levels.
- Daily stretching routines
- Custom workout creation
- Audio, image, and video guidance
- Live instructor experience
- Pain relief and injury prevention
- Improved posture and sleep
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Make Stretching a Daily Habit for a Healthier You Welcome to JustStretch, your go-to app for making stretching a seamless part of your daily routine. Our app is designed to help you enhance your flexibility and maintain your natural range of motion, no matter your age or fitness level. JustStretch Routines: - "Morning Energizer": Kickstart your day with stretches that boost energy and prepare your body for the day ahead. - "Desk Break": Counteract the effects of sitting with these seated stretches that target the shoulders, back, and neck. - "Full Body Flow": A comprehensive routine that targets key muscles and joints throughout your entire body. - "Relax & Unwind": Gentle stretches to help you relax and prepare for a restful night's sleep. - "Flexibility Challenge": Advanced routines for those looking to push their flexibility to new heights. Create Custom Workouts Design personalized stretching routines to meet your fitness goals. Multimedia Guidance Choose from audio, image, or video instructions for clear guidance on every move. Favorite Workouts at a Glance Save your favorite sessions for quick and easy access. Live Instructor Experience Enjoy the motivation and accuracy of real instructor-led classes from anywhere. Easy-to-Use Interface: JustStretch guides you through each stretch with custom illustrations and a built-in timer. Detailed instructions and benefits are provided for every exercise Benefits of Stretching with JustStretch: - Enhanced Flexibility: Boost your muscle and joint mobility for a greater range of motion. - Pain Relief: Alleviate discomfort in key areas like the lower back, neck, hips, and shoulders. - Safety in Motion: Lower your risk of injuries during sports and other physical activities. - Better Sleep & Energy: Improve sleep quality and maintain high energy levels throughout the day. - Posture & Strength: Strengthen your core and improve your posture for better overall alignment. - Stress Management: Reduce stress and anxiety with regular stretching sessions. - Performance Enhancement: Boost your athletic performance with increased agility and strength. - Circulation Improvement: Enhance blood flow for overall health and well-being. - Rapid Recovery: Speed up muscle recovery after workouts or physical exertion. - Balance & Coordination: Improve your balance and coordination for better body control. - Pain Elimination: Target and eliminate chronic pain in the lower back, neck, and hips. - Well-being: Elevate your overall well-being with improved posture and reduced stress. Why JustStretch? - Simple & Affordable: Access hundreds of stretches and yoga poses, all designed to be easy on the wallet and simple to follow. - Convenient Routines: Choose from a variety of quick and convenient stretching routines that fit into any schedule. - All Ages & Levels: Whether you're a beginner or an experienced yogi, JustStretch has routines tailored for you. Workout where you want, when you want. From stretching and meditation to outdoor and bending, the JustStretch App makes bend workout classes and workout tracking fun and easy. No equipment is needed. Here are dozens of beginner-friendly bend classes that are easy to learn and perform, including Shoulders, Arms, Chest, Lower Back, Abdomen, Hips, Legs, and Ankle. Start your day with a bend workout that suits your needs. Choose to increase flexibility, improve strength, maintain good posture, or get fit and healthy! Download juststretch classes,take them with you wherever you go. You can practice in your living room, hotel, beach, or even sitting on a chair or sofa.yoga,making it easy to stay active and healthy no matter where bend. Feedback & Support: We're here to help! Contact us at support@juststretch.fit with any questions, feedback, or suggestions. Privacy Policy: https://www.juststretch.fit/en/privacy-policy.html User Terms of Service: https://www.juststretch.fit/en/terms.html
MuscleUp
Create personalized workout plans for any fitness level and track your strength-building progress. Whether you train at the gym or at home, this app helps you achieve your fitness goals.
- Personalized workout plans
- Customizable for fitness level
- Real-time progress tracking
- Strength building monitoring
- Gym and home workout routines
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Take your fitness to the next level with MuscleUp! - Plan personalized workouts tailored to your fitness level. - Track progress and monitor your strength-building journey. - Perfect for gym or home training. Features You’ll Love: - Custom workout plans designed for all fitness goals. - Real-time progress tracking to celebrate your achievements. - Gym routines, home workouts, and more. Start your fitness journey today —download MuscleUp now!
Screenshots
Verdict
The clearest difference is ads: MuscleUp at none against JustStretch | Flex & Mobility's shown. JustStretch | Flex & Mobility's advantage is review sentiment (64% vs 50%) and ratings volume (2.4K vs 393). On price, rating, update cadence and in-app purchases 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. JustStretch | Flex & Mobility sells 10 in-app purchases, starting at $9.99 per month and MuscleUp sells 5 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for JustStretch | Flex & Mobility against 4.8 for MuscleUp. That said, the two scores are not equally well evidenced: JustStretch | Flex & Mobility has 2.4K ratings behind it against 393, so its average is the more settled of the two. Written reviews are what separate them: 64% of JustStretch | Flex & Mobility's written reviews are positive against 50% of MuscleUp's.
JustStretch | Flex & Mobility ships an update every 3 weeks, MuscleUp every 10 days. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.
| Parameter | JustStretch | Flex & Mobility | MuscleUp |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.4K ratings) | 4.8 (393 ratings) — better |
| Positive reviews | 64.1% of reviews — better | 50.0% of reviews |
| Number of ratings | 2.4K — better | 393 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 104 MB | 131 MB |
| Age rating | 17+ | 17+ |
| Developer | TechPioneers Limited | DEEP FLOW SOFTWARE SERVICES |
Customer experience
JustStretch | Flex & Mobility
MuscleUp
Bugs and requests
JustStretch | Flex & Mobility
Reported bugs
2 issues- App not working after latest update
- Inability to open app on certain devices
Requested features
2 requests- Preparation time before transitions
- Ability to use app on multiple devices
MuscleUp
Not enough reviews yet to summarise bugs or requests.
In-app purchases
JustStretch | Flex & Mobility
- 1 Month Premium$9.991 Month
- 1 Month Premium$19.991 Month
- 3 Months Premium$19.993 Months
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- 3 Months Premium$29.993 Months
- 12 Months Premium$29.991 Year
- LUCKY DRAW PRIZE$29.991 Year
- 12 Months Premium$35.991 Year
- 12 Months Premium$37.991 Year
- One Year Membership$39.991 Year
- 12 Months Premium$47.991 Year
MuscleUp
- MuscleUp Premium 1 Week$6.997 Days
- MuscleUp Premium 1 Week3 Days trial$6.997 Days
- MUSLEUP PREMIUM7 Days trial$9.997 Days
Show 2 moreShow fewer
- MUSLEUP PREMIUM$9.997 Days
- MuscleUp Premium Yearly$39.991 Year
Questions
Is JustStretch | Flex & Mobility free?
Is MuscleUp free?
Which has better reviews, JustStretch | Flex & Mobility or MuscleUp?
Do JustStretch | Flex & Mobility or MuscleUp have ads?
Which is updated more often, JustStretch | Flex & Mobility or MuscleUp?
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