Comparison

UPRIGHT vs StretchLab

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

Head to head
About

UPRIGHT

This app connects to a wearable device to provide real-time feedback on your posture. It helps you build awareness, strengthen core muscles, and establish good posture habits for improved health and confidence.

Highlights
  • Real-time posture feedback
  • Personalized daily goals
  • Posture training tutorial
  • Progress tracking and stats
  • Core muscle strengthening
  • Posture awareness development
Features
Read full description

**This app works with the UPRIGHT posture trainer. Stand tall, strengthen your core, and breathe better with UPRIGHT. Wish someone would give you a heads up when you’re slouching and remind you to stand up straight? Enter UPRIGHT. The UPRIGHT GO is a small personal posture trainer that is worn discreetly on your upper back and provides you with immediate posture feedback. When you slouch, your UPRIGHT GO vibrates gently to remind you to return to your upright position. Coupled with the app that provides daily training and personalized goals, the UPRIGHT GO helps you build posture awareness, strengthen your core muscles, and create good long-term posture habits for better health and confidence. Here’s what you’ll find in the app: - A step-by-step tutorial to help you get started with posture training - Your own avatar, which shows your posture in real-time and helps you develop your posture awareness - Personalized performance-based daily goals - A profile and stats screen to help you track your progress and keep improving

About

StretchLab

Discover personalized stretching sessions, from 1-on-1 to group classes, designed to improve flexibility and reduce tension. Book sessions, track your progress, and find studios near you. Enhance your overall health and wellness with expert guidance.

Highlights
  • Browse schedule of 1-on-1 and group stretches
  • Filter stretches by date and Flexologist
  • Book sessions and add to calendar
  • In-app activity tracker
  • Find nearby studios on interactive map
  • Track monthly membership
  • Check in to sessions
Features
Read full description

Download our StretchLab app today no matter your flexibility level! Our app will help you find the stretching experience perfectly fit for you. Features: - Browse our schedule of upcoming 1-on-1 and group stretches - Have a favorite Flexologist? Filter stretches by date and Flexologist - Book stretches in the app and easily add them to your calendar with a simple click! - Check out our in-app activity tracker to keep track of your sessions over time - In a new area? Find a StretchLab studio near you using our interactive map - Keep track of your monthly membership - Check in to your next stretch in the app Stretching is ancient, but StretchLab has redefined what it means to stretch. Whether you’re an athlete looking to loosen up after a workout or a desk jockey just looking to increase mobility and reduce tension, we have flexibility experts at our studios with years of experience in yoga, athletics, fitness, health, chiropractic and more to create a personalized stretching experience just for you. What We offer: - Book an innovative group stretch to reclaim your freedom no matter your fitness level. Our group stretch is fully customized to fit your flexibility. - Need a more personalized experience? Book a 25 minute 1-on-1 with a Flexologist to find the right stretch for you. Our 25 minute customized stretching concentrates on major muscle groups like core, back, shoulders and hips. - If you need a deeper stretch, book the 50 minute stretch to work the extremities like the lower legs, feet, ankles, neck, arms, wrists and hands. Book your 1-on-1 to not just improve fitness, but your overall health and wellness Why you will love our stretch: - Reduce muscle pain and tension - Increase flexibility and mobility - Increase your sports performance - Transform your health and wellness - Track your stretches on the Apple Watch app - Track your progress on Apple Health app Join ClassPoints, our loyalty program! Sign up for free and accumulate points with every class you attend. Achieve different status levels and unlock exciting rewards, including retail discounts, access to priority booking, guest passes for your friends, and more! Download the StretchLab app today to find the flow and flexibility your body needs!

Screenshots

UPRIGHT4 screens
StretchLab4 screens

Verdict

The call

The clearest difference is monetization model: UPRIGHT at free against StretchLab's free with in-app purchases. StretchLab's advantage is review sentiment (48% vs 25%). On price, rating, ratings volume and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

StretchLab holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 3.9K and 11K respectively. Written reviews point the same way: 25% of UPRIGHT's written reviews are positive against 48% of StretchLab's.

UpkeepUpdate frequency

UPRIGHT ships an update every 5 weeks, StretchLab every 3 weeks. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

Scorecard2 real differences · 8 level
UPRIGHT versus StretchLab: the parameters behind the verdict, then further details
ParameterUPRIGHTStretchLab
PriceFreeFree
Rating4.6 (3.9K ratings)4.8 (11K ratings) — better
Positive reviews25.4% of reviews47.7% of reviews — better
Number of ratings3.9K11K — better
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.1 — better16.0
Further details — not scored
Size90 MB155 MB
Age rating4+4+
DeveloperUpright Technologies LtdXponential Fitness LLC

Customer experience

UPRIGHT

All ratings3,922 ratings
Positive90.8%
Neutral2.9%
Negative6.3%
Written reviews209 reviews
Positive25.4%
Neutral10.0%
Negative64.6%

StretchLab

All ratings11,014 ratings
Positive94.3%
Neutral1.3%
Negative4.5%
Written reviews130 reviews
Positive47.7%
Neutral4.6%
Negative47.7%

User reviews

UPRIGHT

From 3.9K App Store ratings

What we love

  • 👍 Easy to use
  • 🚀 Effective in improving posture
  • 🚀 Helpful real-time feedback
  • 🚀 Intuitive app and device setup

Room to improve

  • 🐛 Connectivity issues with the app
  • 🔋 High battery drain
  • 🐛 Syncing and data tracking issues
  • 🐛 Buggy app and software updates

StretchLab

From 11K App Store ratings

What we love

  • 👍 Excellent stretching experience
  • 🙌 Knowledgeable and friendly staff
  • 💪 Improved flexibility and mobility
  • 🤩 Positive overall experience

Room to improve

  • 🐛 Buggy and unreliable app
  • 💰 Expensive services
  • 📞 Poor customer support and follow-up
  • ⏰ Difficulty booking appointments

Bugs and requests

UPRIGHT

Reported bugs

3 issues
  • App freezing and crashing
  • Forced firmware updates causing device issues
  • Inconsistent device performance and vibration detection

Requested features

3 requests
  • Apple Watch app integration
  • Customizable goals and settings
  • Improved data visualization and tracking

StretchLab

Reported bugs

4 issues
  • App crashes and errors when booking appointments
  • Incorrect credit/session information displayed
  • Password reset issues and invalid links
  • Inability to log in or create an account

Requested features

4 requests
  • Ability to book appointments beyond current month
  • Option to view password during login
  • Improved app stability and functionality
  • Integration with calendar apps

In-app purchases

None

UPRIGHT

No in-app purchases

None

StretchLab

No in-app purchases

Questions

Is UPRIGHT free?
UPRIGHT is free to download, with no in-app purchases.
Is StretchLab free?
StretchLab is free to download, with no in-app purchases.
Which has better reviews, UPRIGHT or StretchLab?
StretchLab is rated higher. UPRIGHT averages 4.6 out of 5 from 3.9K ratings, while StretchLab averages 4.8 from 11K ratings.
Do UPRIGHT or StretchLab have ads?
Neither UPRIGHT nor StretchLab shows ads.
Which is updated more often, UPRIGHT or StretchLab?
UPRIGHT ships an update every 5 weeks, and StretchLab every 3 weeks. Most recently, UPRIGHT was updated on November 7, 2026 and StretchLab on November 8, 2026.

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