Comparison

StretchLab vs Upstep 3D Scan

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

Head to head
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!

About

Upstep 3D Scan

Features
Read full description

Custom orthotics start with a perfect scan. Upstep 3D Scan turns your iPhone into a precision foot scanner. In just a few minutes, capture a detailed 3D model of each foot — no special equipment, no clinic appointments, no guesswork. How it works: 1. Place your foot on a flat surface 2. Follow the on-screen and voice-guided instructions 3. Review your completed scan and submit your order Why Upstep? • Scan from home — no office visit required • Step-by-step video guidance walks you through the entire process • Real-time voice instructions so you can focus on scanning, not reading • Review a 3D preview of each foot before submitting • Precise enough to create medical-grade custom orthotics • Works with your iPhone's camera — no accessories needed Did you know? Your feet have 26 bones, 33 joints, and over 100 muscles each. Generic insoles ignore all of that. Upstep orthotics are built from your unique 3D foot scan, so they fit the way your feet actually are — not an average. What happens after scanning? Your 3D scans are securely sent to Upstep's team of podiatrists who design orthotics tailored to your feet and lifestyle. Your custom orthotics are then manufactured and shipped directly to you. Requires an active Upstep order. Visit upstep.com to get started.

Screenshots

StretchLab4 screens
Upstep 3D Scan3 screens

Verdict

The call

The clearest difference is rating: StretchLab at 4.8 against Upstep 3D Scan's 1.0. StretchLab also leads on ratings volume (11K vs 5) and update cadence (every 3 weeks vs every 2 months). On price, ads, 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. 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 1.0. That said, the two scores are not equally well evidenced: StretchLab has 11K ratings behind it against 5, so its average is the more settled of the two.

UpkeepUpdate frequency

StretchLab ships an update every 3 weeks, Upstep 3D Scan every 2 months. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
StretchLab versus Upstep 3D Scan: the parameters behind the verdict, then further details
ParameterStretchLabUpstep 3D Scan
PriceFreeFree
Rating4.8 (11K ratings) — better1.0 (5 ratings)
Positive reviews47.7% of reviews—
Number of ratings11K — better5
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size155 MB90 MB
Age rating4+4+
DeveloperXponential Fitness LLCShmuel Duan

Bugs and requests

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

Upstep 3D Scan

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

StretchLab

No in-app purchases

None

Upstep 3D Scan

No in-app purchases

Questions

Is StretchLab free?
StretchLab is free to download, with no in-app purchases.
Is Upstep 3D Scan free?
Upstep 3D Scan is free to download, with no in-app purchases.
Which has better reviews, StretchLab or Upstep 3D Scan?
StretchLab is rated higher. StretchLab averages 4.8 out of 5 from 11K ratings, while Upstep 3D Scan averages 1.0 from 5 ratings.
Do StretchLab or Upstep 3D Scan have ads?
Neither StretchLab nor Upstep 3D Scan shows ads.
Which is updated more often, StretchLab or Upstep 3D Scan?
StretchLab ships an update every 3 weeks, and Upstep 3D Scan every 2 months. Most recently, StretchLab was updated on October 24, 2026 and Upstep 3D Scan on October 24, 2026.

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