Comparison

Stretching Routine 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 Routine

This app offers a variety of stretching routines designed to improve flexibility, reduce muscle tightness, and enhance workout efficiency and safety. It includes targeted exercises for full body, lower body, upper body, and yoga, suitable for beginners. The routines aim to relieve muscle tension and increase mobility for everyday life and exercise.

Highlights
  • Full body stretching routines
  • Lower body stretches (legs, hips, back)
  • Upper body stretches (back, chest, shoulders, neck)
  • Yoga for flexibility
  • Beginner-friendly exercises
  • Relief for back pain
Features
Read full description

Stretching may not be the most exciting part of working out, but doing flexibility work is just as important for a well-rounded fitness routine as strength and cardio work. Incorporating some stretching exercises into your workout schedule will help you improve flexibility, reduce tightness, and ultimately, make your workouts more efficient and safe. We created multiple workout routine with stretches for: - Full Body - Lower Body: leg, hip, glute and lower back stretches - Upper Body: upper back, chest, shoulder and neck stretches - Yoga for better flexibility Beginners can do all the stretching exercises we provide. It's true that stretching is neither glamorous nor hardcore, and it probably won't give you the same rush that a run or HIIT class will. Luckily, improving your flexibility and mobility isn't hard. It just takes a little time. Try adding the stretches for flexibility your workout routine to help relieve muscle tension and increase mobility—so that you can move through both the gym and life more freely. Stretching is essential for improving flexibility, which is an important component of overall fitness, along with mobility, strength, power, and endurance. If they’re not already a part of your workout regimen, read on to learn which stretching exercises are best for warming up, cooling down, and improving overall fitness. Stretching is an important part of fitness: It can improve your range of motion, increase circulation, and calm your mind—which may help fend off injuries and illness, as well as bring on a better night’s sleep. Stretches for back pain relief: When you're dealing with the aches and oftentimes debilitating soreness of lower-back pain, there's a good chance all you want to do is stay in bed. Yet research found that any kind of exercise—whether it's core strengthening, aerobic exercise, or stretching—is the best way to ease pain and reduce the risk of another back pain attack. The nice thing about gentle stretching is that it's feasible to do when you're in pain—and often provides the fastest relief.

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 Routine4 screens
123 Flex4 screens

Verdict

The call

The clearest difference is review sentiment: 123 Flex at 100% against Stretching Routine's 25%. 123 Flex also leads on rating (4.0 vs 2.8) and ads (none vs shown). Stretching Routine's advantage is ratings volume (6 vs 2). On price, in-app purchases, monetization model 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. Stretching Routine sells 9 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.

ReceptionRating · Positive reviews · Number of ratings

123 Flex holds the better App Store score, 4.0 against 2.8. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 25% of Stretching Routine's written reviews are positive against 100% of 123 Flex's.

UpkeepUpdate frequency

Stretching Routine ships an update every 16 months, 123 Flex every 4 days. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Stretching Routine versus 123 Flex: the parameters behind the verdict, then further details
ParameterStretching Routine123 Flex
PriceFreeFree
Rating2.8 (6 ratings)4.0 (2 ratings) — better
Positive reviews25.0% of reviews100.0% of reviews — better
Number of ratings6 — better2
Update frequencyEvery 16 monthsEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size32 MB78 MB
Age rating4+12+
DeveloperSamantha RoobolWeAnd Ltd

Customer experience

Stretching Routine

All ratings6 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews12 reviews
Positive25.0%
Neutral16.7%
Negative58.3%

123 Flex

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

In-app purchases

9 purchases

Stretching Routine

One-time9
  • Remove Ads$0.99
  • Boost your strength$1.99
  • Full Body Stretching Routine$1.99
Show 6 more
  • 30 Day Stretching Challenge$1.99
  • Stretching For Beginners$1.99
  • Yoga for Flexibility$1.99
  • Leg, Hip and Glute Stretches$1.99
  • Upper Body Stretches$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 Stretching Routine free?
Stretching Routine 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 Routine or 123 Flex?
123 Flex is rated higher. Stretching Routine averages 2.8 out of 5 from 6 ratings, while 123 Flex averages 4.0 from 2 ratings.
Do Stretching Routine or 123 Flex have ads?
Stretching Routine shows ads; 123 Flex does not.
Which is updated more often, Stretching Routine or 123 Flex?
Stretching Routine ships an update every 16 months, and 123 Flex every 4 days. Most recently, Stretching Routine was updated on October 1, 2026 and 123 Flex on October 7, 2026.

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