SimpleStretch vs 123 Flex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SimpleStretch
This app provides a structured way to stretch your body in just 8 minutes. Choose from 4 body zones or a full-body routine with clear 3D animated exercises to quickly feel fit and flexible.
- 8-minute routines
- 4 body zones
- Full body stretching
- 3D animated exercises
- Intuitive control
- Clear and quick
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It’s very important to start your day with stretching after a long period of sleep or rest. SimpleStretch offers a range of exercises to stretch your body in a structured way. You can choose from 4 body-zones for specific exercises or stretch your whole body. In this way every body structure will be covered. With SimpleStretch it is possible to stretch every part of your body within 8 minutes in a clear, quick and simple way on the basis of very clear 3D animated example exercises. To quickly feel fit and flexible. Features: • Simple, clear and quick • In only 8 minutes • Choose from 4 body-zones • All body-structures will be covered • 3D-animated example exercises • Intuitive control Start your day Fit with Simple Stretch
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.
- 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
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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
Verdict
The clearest difference is review sentiment: 123 Flex at 100% against SimpleStretch's 0%. 123 Flex also leads on rating (4.0 vs 1.0) and update cadence (every 4 days vs every 11 months). SimpleStretch's advantage is monetization model (free vs freemium) and iOS requirement (9.0 vs 13.0). On price, ratings volume, ads 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. SimpleStretch sells 5 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.
123 Flex holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 0% of SimpleStretch's written reviews are positive against 100% of 123 Flex's.
SimpleStretch ships an update every 11 months, 123 Flex every 4 days. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.
| Parameter | SimpleStretch | 123 Flex |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 11 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 78 MB |
| Age rating | 4+ | 12+ |
| Developer | Dev IT | WeAnd Ltd |
Customer experience
SimpleStretch
123 Flex
In-app purchases
SimpleStretch
- Upgrade armen$0.99
- Upgrade nek & schouders$0.99
- Upgrade voor rug & romp$0.99
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- Upgrade benen & combi$0.99
- Upgrade voor je hele lichaam$3.99
123 Flex
- Premium Monthly7 Days trial$9.991 Month
- Premium Yearly7 Days trial$59.991 Year
Questions
Is SimpleStretch free?
Is 123 Flex free?
Which has better reviews, SimpleStretch or 123 Flex?
Do SimpleStretch or 123 Flex have ads?
Which is updated more often, SimpleStretch or 123 Flex?
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