Comparison

Stretching, Flexibility vs 123 Flex

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

Head to head
About

Stretching, Flexibility

This app offers video-based flexibility and mobility routines to improve range of motion, reduce stiffness, and enhance posture. It provides guided exercises for specific body areas or full-body workouts, suitable for all fitness levels. Improve athletic performance, aid recovery, and reduce stress with daily routines.

Highlights
  • Video-based flexibility routines
  • Targeted mobility exercises
  • Full-body and area-specific workouts
  • Beginner to advanced progression
  • Posture correction
  • Stress reduction stretches
  • Post-workout recovery aid
Features
Read full description

Working on Flexibility and Mobility is often overlooked. Flexibility helps us stay active and more mobile as we age, and reduces stiffness, aches & pains. The Flex app provides pre-built. video-based, flexibility and mobility routines which can be done with as little as 5 minutes a day. Whether you want to focus on a particular area like your knees, or your back, or want to work on overall full-body mobility we have routines for you. Start with our simpler and easier routines and work your way up to more advanced ones as you progress. If you want to work on flexibility and mobility but don't know where to start, let Flex guide you and make it easy. Benefits: Improved Flexibility: Access a wide range of movements designed to increase flexibility in various muscle groups and joints. Enhanced Range of Motion: Targeted stretches help improve joint mobility, allowing for smoother and more fluid movement. Reduced Risk of Injury: Incorporate mobility exercises into your routine to help prevent muscle stiffness and reduce the likelihood of strains or sprains during physical activity. Better Posture: Practice movements that promote better alignment and posture throughout the day. Resetting poor posture. Relaxation: Utilize relaxation-focused stretches to release tension in tight muscles, promoting a sense of calm and reducing stress levels. Improve Athletic Performance: Incorporate mobility training to optimize muscle function and improve performance in sports and at the gym. Recovery Aid: Use gentle mobility exercises to help post-workout, promoting circulation and helping muscles to recover more quickly. Accessible Anywhere, Anytime: Enjoy the convenience of accessing a variety of mobility exercises right from your smartphone or tablet, making it easy to stay consistent with your stretching routine. Expert Guidance: Benefit from instructional videos and detailed descriptions provided within the app, ensuring proper technique and maximizing the effectiveness of each movement. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

123 Flex

This app provides personalized stretching and flexibility routines based on your fitness goals and physical condition. It features AI-driven program generation, progress tracking, and visual demonstrations to guide your workouts.

Highlights
  • Personalized AI workout plans
  • Progress tracking and reassessments
  • 3D animated stretch demonstrations
  • Safety tips and injury precautions
  • Audio guidance for sessions
  • Offline workout mode
  • Motivation through rewards and challenges
Features
Read full description

Feel better and gain confidence with 123 Flex, the flexibility coach designed to empower and enhance your fitness and stretching routine. Choose us and get: A Detailed Surveyor Introduce your goals and health: • Current flexibility level • Specific fitness and flexibility goals (e.g., improving hamstring flexibility, mastering a split, other stretch goals) • Previous injuries or areas of concern in your stretch workouts • Preferred workout duration • Frequency of workout routines • Specific sports or activities they participate in during their fitness journey Matching you to a program: A robust AI system that processes your survey answers to generate a personalized stretching and workout routine. Progress Tracking: Track your flexibility progress over time, monitoring your workouts and routines, with periodic reassessments to adjust as you improve or as your goals change. Visual Demonstrations: 3D animated models showing correct form and technique for each stretch in your workout. Safety Tips: Include precautions for each stretch and workout, especially for users with specific past injuries. Feedback Loop: After each session, you are asked for feedback. Was the stretch or workout too easy or hard? Any pain? The AI learns from your routines. Reminders & Scheduling: Set reminders or schedule their stretching and fitness sessions. Variability: The AI shuffles workout routines or introduce new stretches to keep users engaged, ensuring they are working all relevant muscle groups during their fitness journey. Guided Sessions: Audio guidance for each stretching session, ensuring users hold the stretch for the appropriate amount of time and relax into each pose. Resource Library: A database of all stretches and workout benefits, possible variations, common mistakes, and progressions. Rewards, stretch badges, and challenges to keep you motivated throughout your fitness journey. Offline Mode: Allows you to download your routines and workouts, using them without an active internet connection. Note: 123 Flex is suitable for all ages and fitness levels. However, always consult your doctor or physiotherapist before starting any new fitness or stretching program.

Screenshots

Stretching, Flexibility4 screens
123 Flex4 screens

Verdict

The call

The clearest difference is rating: Stretching, Flexibility at 4.6 against 123 Flex's 4.0. Stretching, Flexibility also leads on ratings volume (11 vs 2). 123 Flex's advantage is review sentiment (100% vs 76%) and update cadence (every 4 days vs fortnightly). On price, ads, in-app purchases and monetization model 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. Stretching, Flexibility sells 4 in-app purchases, starting at $9.99 per month and 123 Flex sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Stretching, Flexibility holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Stretching, Flexibility has 11 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 76% of Stretching, Flexibility's written reviews are positive against 100% of 123 Flex's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Stretching, Flexibility ships an update fortnightly, 123 Flex every 4 days. The most recent releases landed on October 2, 2026 and September 20, 2026 respectively.

Scorecard5 real differences · 5 level
Stretching, Flexibility versus 123 Flex: the parameters behind the verdict, then further details
ParameterStretching, Flexibility123 Flex
PriceFreeFree
Rating4.6 (11 ratings) — better4.0 (2 ratings)
Positive reviews75.6% of reviews100.0% of reviews — better
Number of ratings11 — better2
Update frequencyFortnightlyEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size110 MB78 MB
Age rating12+12+
DeveloperApp Ktchn LtdWeAnd Ltd

Customer experience

Stretching, Flexibility

All ratings11 ratings
Positive90.9%
Neutral0.0%
Negative9.1%
Written reviews45 reviews
Positive75.6%
Neutral4.4%
Negative20.0%

123 Flex

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Stretching, Flexibility

Subscriptions3
  • Flex All Access$9.991 Month
  • Flex All Access1 Year trial$34.991 Year
  • Flex All Access$34.991 Year
One-time1
  • Go Pro$59.99
2 purchases

123 Flex

Subscriptions2
  • Premium Monthly7 Days trial$9.991 Month
  • Premium Yearly7 Days trial$59.991 Year

Questions

Is Stretching, Flexibility free?
Stretching, Flexibility is free to download, with in-app purchases available.
Is 123 Flex free?
123 Flex is free to download, with in-app purchases available.
Which has better reviews, Stretching, Flexibility or 123 Flex?
Stretching, Flexibility is rated higher. Stretching, Flexibility averages 4.6 out of 5 from 11 ratings, while 123 Flex averages 4.0 from 2 ratings.
Do Stretching, Flexibility or 123 Flex have ads?
Neither Stretching, Flexibility nor 123 Flex shows ads.
Which is updated more often, Stretching, Flexibility or 123 Flex?
Stretching, Flexibility ships an update fortnightly, and 123 Flex every 4 days. Most recently, Stretching, Flexibility was updated on October 2, 2026 and 123 Flex on September 20, 2026.

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