Comparison

Stretch & 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

Stretch & Flexibility

Features
Read full description

Stretching can increase flexibility and improve your joints' range of motion, helping you move more freely. And ensuring that you have equal flexibility on both sides might help protect you from injury. Stretching can also reduce pain from chronic conditions, such as osteoarthritis and lower back pain. It is a crucial part of a regular workout regimen because stretching after a workout routine relaxes tightened muscles. You can improve flexibility of specific muscles as well as the entire body with our simple exercises.

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

Stretch & Flexibility4 screens
123 Flex4 screens

Verdict

The call

The clearest difference is ads: 123 Flex at none against Stretch & Flexibility's shown. 123 Flex also leads on update cadence (every 4 days vs fortnightly). Stretch & Flexibility's advantage is iOS requirement (11.0 vs 13.0). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Stretch & Flexibility sells 10 one-off in-app purchases 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.

UpkeepUpdate frequency

Stretch & Flexibility ships an update fortnightly, 123 Flex every 4 days. The most recent releases landed on September 29, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
Stretch & Flexibility versus 123 Flex: the parameters behind the verdict, then further details
ParameterStretch & Flexibility123 Flex
PriceFreeFree
Rating—4.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyFortnightlyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better13.0
Further details — not scored
Size61 MB78 MB
Age rating4+12+
DeveloperpowerpunchWeAnd Ltd

In-app purchases

10 purchases

Stretch & Flexibility

One-time10
  • Remove Ads$0.99
  • Stretches - Relieve Tight Hips$1.99
  • Shoulder Mobility Exercises$1.99
Show 7 more
  • Safely Learn the Splits$1.99
  • Increase Range of Motion$1.99
  • Improve Your Sleep$1.99
  • Improve your Posture$1.99
  • Daily Stretch Routine$1.99
  • Better Flexibility$1.99
  • Full Bundle$4.99
2 purchases

123 Flex

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

Questions

Is Stretch & Flexibility free?
Stretch & 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.
Do Stretch & Flexibility or 123 Flex have ads?
Stretch & Flexibility shows ads; 123 Flex does not.
Which is updated more often, Stretch & Flexibility or 123 Flex?
Stretch & Flexibility ships an update fortnightly, and 123 Flex every 4 days. Most recently, Stretch & Flexibility was updated on September 29, 2026 and 123 Flex on October 24, 2026.

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