Comparison

Ultiself | Self vs JustStretch | Flex & Mobility

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ultiself | Self

This app uses AI and science-backed methods to help you build optimal daily routines for self-improvement. It analyzes your habits and provides personalized recommendations to boost confidence, focus, and productivity.

Highlights
  • AI-powered habit analysis
  • Personalized routine creation
  • Science-backed habit library
  • Expert-designed routines
  • Daily habit tracking
  • Motivation and stats
Features
Read full description

Build Better Habits With Small Daily Changes If you want a simple way to organize your day, track your habits, and build a routine you can follow, try Ultiself for free. Ultiself is a user-friendly app for planning routines, logging habits, setting reminders, and reviewing your progress over time. Choose habits from our library, complete daily check-ins, and use simple insights to understand your patterns. Just imagine: * Logging the habits that matter to you * Creating a routine that fits your lifestyle * Staying focused on your personal goals * Seeing your progress over time * Building consistency one day at a time Ultiself is your personal habit and routine companion. 3 simple steps to build your routine with Ultiself: Select habits from our library based on areas you want to focus on, such as productivity, focus, mood, motivation, and more. Take 30 seconds daily to track your habits and rate your day. Review your insights and adjust your routine over time. Our Habit Builder helps you create a routine, log your habits, and stay motivated. * User-friendly, intuitive tracker * Weekly targets, streaks, scoring system, and stats * Habit insights to help you review your progress * Push notification habit reminders Here is what sets us apart: * Content: 300+ habit breakdowns. Explore habits, learn how to practice them, and get practical tips. * Habit Insights: Review your tracking data and see how your habits relate to your daily ratings and routines. * Expert Routines: Save time by following prebuilt routines for areas like productivity, focus, creativity, mood, and more. Take it to the next level with Ultiself Premium. Ultiself Premium gives you expanded features to log more habits, explore deeper stats, and personalize your routine inside the app. Premium features include: * Track unlimited habits * In-depth motivating stats * Review how your habits relate to areas such as mood, productivity, focus, and daily routine * Premium routines designed by experts * Sleep tracking tools * And more Subscription information: Subscription payments are charged to your iTunes account after confirmation of your purchase. Subscriptions automatically renew unless auto-renew is cancelled at least 24 hours before the end of the current period. Renewal cost depends on your subscription plan. Available plans: Monthly and Yearly. Free trials, if offered, automatically renew to a paid subscription. You can cancel or manage auto-renewal in Account Settings. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a premium subscription during the free trial period. Feel free to contact us with questions or suggestions by emailing info@ultiself.com Ultiself puts practical habit-building tools into the palm of your hand and makes self-improvement feel simple, structured, and engaging. Check out Ultiself for free and start building your routine today. Important: Ultiself is a wellness, habit-tracking, and self-improvement app. It is not a medical device and does not provide medical advice, diagnosis, treatment, or emergency support. For medical or mental health concerns, please consult a qualified healthcare professional. Privacy Policy - https://ultiself.com/privacy-policy Terms & Conditions - https://ultiself.com/terms-of-use Precautions & Disclaimer - https://ultiself.com/precautions-and-disclaimer

About

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.

Highlights
  • Daily stretching routines
  • Custom workout creation
  • Audio, image, and video guidance
  • Live instructor experience
  • Pain relief and injury prevention
  • Improved posture and sleep
Features
Read full description

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

Screenshots

Ultiself | Self4 screens
JustStretch | Flex & Mobility4 screens

Verdict

The call

The clearest difference is ads: Ultiself | Self at none against JustStretch | Flex & Mobility's shown. Ultiself | Self also leads on update cadence (weekly vs every 3 weeks). JustStretch | Flex & Mobility's advantage is rating (4.7 vs 4.3) and iOS requirement (13.0 vs 15.0). On price, review sentiment, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ultiself | Self sells 26 in-app purchases, starting at $3.49 per 7 days and JustStretch | Flex & Mobility sells 17 in-app purchases, starting at $7.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

JustStretch | Flex & Mobility holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 3.9K and 2.4K respectively. Written reviews complicate that: 69% of Ultiself | Self's written reviews are positive against 64% of JustStretch | Flex & Mobility's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ultiself | Self ships an update weekly, JustStretch | Flex & Mobility every 3 weeks. Both last shipped on October 28, 2026.

Scorecard4 real differences · 6 level
Ultiself | Self versus JustStretch | Flex & Mobility: the parameters behind the verdict, then further details
ParameterUltiself | SelfJustStretch | Flex & Mobility
PriceFreeFree
Rating4.3 (3.9K ratings)4.7 (2.4K ratings) — better
Positive reviews68.7% of reviews — better64.0% of reviews
Number of ratings3.9K — better2.4K
Update frequencyWeekly — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size312 MB104 MB
Age rating12+17+
DeveloperUltiself CorporationTechPioneers Limited

Customer experience

Ultiself | Self

All ratings3,948 ratings
Positive82.8%
Neutral4.2%
Negative13.0%
Written reviews2,340 reviews
Positive68.7%
Neutral1.4%
Negative29.9%

JustStretch | Flex & Mobility

All ratings2,419 ratings
Positive92.8%
Neutral2.0%
Negative5.2%
Written reviews797 reviews
Positive64.0%
Neutral2.9%
Negative33.1%

User reviews

Ultiself | Self

From 3.9K App Store ratings

What we love

  • 🚀 Efficient habit tracking
  • 👍 Intuitive and user-friendly interface
  • 💡 Personalized recommendations
  • 🚀 Gamified experience keeps self-improvement fun
  • 👍 Helps establish consistent routines

Room to improve

  • 🐛 Glitches and bugs
  • 💰 Expensive subscription model with hidden costs
  • 🔒 Difficulty canceling subscription
  • 🔒 Unauthorized charges
  • 👎 Lack of customer support and unresponsive to refund requests

JustStretch | Flex & Mobility

From 2.4K App Store ratings

What we love

  • 🤸‍♀️ Effective stretching routines
  • 💪 Variety of exercises
  • 🕰️ Guided sessions
  • 🌟 Helpful for pain relief

Room to improve

  • 💰 Requires paid subscription
  • 🚫 No free trial
  • 🐛 App crashes and bugs
  • 🤔 Inconsistent program design

Bugs and requests

Ultiself | Self

Reported bugs

4 issues
  • App crashes or freezes during use
  • Habit tracking data not saving properly
  • Subscription issues and inability to cancel
  • Compatibility problems on older devices

Requested features

5 requests
  • Ability to organize daily activities on a calendar view
  • More language support for non-English users
  • Improved sleep and health tracking integration
  • Apple Watch app or complications
  • Better habit management (e.g., ability to quit habits)

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

In-app purchases

26 purchases

Ultiself | Self

Subscriptions18
  • Become VIP Membership$3.497 Days
  • Ultiself OS1 Monthly$4.991 Month
  • Ultiself OS2 Monthly$5.991 Month
Show 15 more
  • Become VIP Membership$9.991 Month
  • Ultiself Yearly DownSell$14.991 Year
  • 1 month$14.991 Month
  • Ultiself OS1 Yearly7 Days trial$17.991 Year
  • Project 120$23.493 Months
  • Ultiself Year with 7 day trial7 Days trial$26.991 Year
  • Onboarding Special Yearly7 Days trial$29.991 Year
  • Ultiself Regular Yearly7 Days trial$39.991 Year
  • Subscription7 Days trial$39.993 Months
  • 3 month7 Days trial$39.993 Months
  • Onboarding7 Days trial$44.991 Year
  • Onboarding Sales Screen7 Days trial$44.991 Year
  • 1 year7 Days trial$46.991 Year
  • 1 year7 Days trial$69.991 Year
  • Onboarding Sales7 Days trial$89.991 Year
One-time8
  • Sleep Mastery Program$18.49
  • Upgrade Your Life From$24.99
  • Ultiself Life Time Biohacking$29.99
Show 5 more
  • Upgrade Your Life$29.99
  • Focus Better. Perform Stronger$32.49
  • Break the Pattern. Keep the Power.$34.49
  • Channel Your Addiction Anti Vape$34.49
  • Vape-free roadmap$34.49
17 purchases

JustStretch | Flex & Mobility

Subscriptions15
  • 1 Month Premium$7.491 Month
  • 1 Month Premium$9.991 Month
  • 1 Month Premium$19.991 Month
Show 12 more
  • 3 Months Premium$19.993 Months
  • 3 Months Premium$29.993 Months
  • 12 Months Premium$29.991 Year
  • LUCKY DRAW PRIZE$29.991 Year
  • 12 Months Premium$30.991 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
  • 7-Day Free Trial7 Days trial$47.991 Year
  • one year membership$49.991 Year
  • 12 Months Premium$89.991 Year
One-time2
  • Stretch Guide Ebook Bundle$9.99
  • Stretch Guide Ebook Bundle$12.99

Questions

Is Ultiself | Self free?
Ultiself | Self is free to download, with in-app purchases available.
Is JustStretch | Flex & Mobility free?
JustStretch | Flex & Mobility is free to download, with in-app purchases available.
Which has better reviews, Ultiself | Self or JustStretch | Flex & Mobility?
JustStretch | Flex & Mobility is rated higher. Ultiself | Self averages 4.3 out of 5 from 3.9K ratings, while JustStretch | Flex & Mobility averages 4.7 from 2.4K ratings.
Do Ultiself | Self or JustStretch | Flex & Mobility have ads?
JustStretch | Flex & Mobility shows ads; Ultiself | Self does not.
Which is updated more often, Ultiself | Self or JustStretch | Flex & Mobility?
Ultiself | Self ships an update weekly, and JustStretch | Flex & Mobility every 3 weeks. Most recently, Ultiself | Self was updated on October 28, 2026 and JustStretch | Flex & Mobility on October 28, 2026.

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