Comparison

Styku vs Spren Body Composition Scanner

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

Head to head
About

Styku

Visualize your body's transformation in 3D with advanced body scanning technology. Track key metrics beyond the scale, gain personalized wellness insights, and compare progress with dynamic side-by-side visuals. Understand your body's changes like never before.

Highlights
  • 3D body visualization
  • Wellness and shape insights
  • Track key body metrics
  • Compare scan progress
  • Non-invasive 3D scanning
Read full description

Styku – Your Fitness in 3D Discover a revolutionary way to approach your fitness and wellness with Styku’s patented, non-invasive 3D body scanning technology. With the Styku mobile app, your results come to life dynamically on your own device—no more static PDF reports. How It Works With thousands of locations equipped with Styku scanners, finding a place to perform your scan is simple. During your 3D whole-body scan, you stand on the turntable as it spins. A high-resolution camera takes thousands of snapshots of your body—just as safe as taking a picture with your phone. In under a minute, your scan is complete. Within minutes, your results are processed and delivered securely to the Styku app, where you can explore your body in 3D and track your progress. Features & Benefits Visualize Your Body Shape in 3D: View and interact with your 3D scans. Explore your body shape in full 360°—capturing the details that the scale can’t. Wellness & Shape Insights: Personalized insights from your body shape and composition help you build awareness and health literacy as well as make informed decisions to support your overall health and wellness. Track What Matters Most: Go beyond the scale. Track key body metrics like fat %, lean mass, and waist size, plus regional changes that reveal how your body is truly transforming. Compare Your Scans. See the Difference: Instantly compare two moments in your fitness journey. Side-by-side 3D visuals highlight how and where your body is changing—making your progress visible and motivating. Disclaimer Styku Scanner & Application The Styku scanner and mobile application are designed for general fitness and wellness purposes. The Styku scanner is a 3D body scanner and is not a medical device. The mobile application simply displays results from the 3D body scan. The mobile application is intended for informational and educational purposes only and does not diagnose, treat, cure, monitor, or prevent any medical condition or illness. The use of this application is not a substitute for consultation with a physician, who is the only person qualified to establish a diagnosis and recommend treatment. The application does not constitute medical advice, a diagnosis, or a therapeutic recommendation. If you have any health concerns, consult a licensed healthcare provider. Do not make changes to your medications, exercise, diet, or other health routines without first consulting your doctor. Terms of Use By using our application, you agree to the Terms of Use (EULA). Link: https://www.styku.com/eula For additional important information: https://www.styku.com/privacy https://www.styku.com/product-specific-terms

About

Spren Body Composition Scanner

This app uses your smartphone to measure body fat percentage, BMI, and body composition. It provides detailed health reports, tracks weight loss, and offers personalized nutrition plans, acting as a smart scale alternative with research-grade analysis.

Highlights
  • Body fat percentage measurement
  • BMI calculator
  • Body composition analysis
  • Weight tracking
  • Personalized nutrition planning
  • Multi-page PDF reports
Features
Read full description

Revolutionize your fitness journey with Spren, the ultimate health app and fitness app: • Advanced BMI-Calculator & Body Fat Calculator: Use your smartphone as a body scan tool for accurate body fat percentage and BMI measurements, results are comparable to DEXA scans. • Comprehensive Health App Reports: As a sophisticated body tracker and body measurement tracker, Spren provides detailed insights including body fat percentage, BMI analysis, body composition breakdown • Research-Based Fitness Tracker: Align your results with healthy ranges from extensive research, similar to DEXA scan standards. • Weight Tracker & Weight Loss Tracker: Monitor your weight and track weight loss effectively, going beyond what traditional smart scales offer. • Body Composition Analysis: Understand the nuances of body composition, not just BMI, using Spren as your personal fitness tracker and health app. • Smart Scale Alternative: Experience the convenience of a smart scale combined with the detailed analysis of a professional-grade body fat calculator, scanner, and BMI calculator. • Personalized Nutrition Planning: Set targeted goals and begin tracking toward them today with a data-backed nutrition plan created just for your needs. Get a multi-page PDF report that includes: • Body fat % • Fat mass • Lean mass • A/G fat ratio • Resting metabolic rate Plus, see how your results compare to healthy and optimal ranges from published research. The technology seems magical, but the science behind the imaging algorithm has been validated by several independent peer-reviewed studies, making research-grade body composition analysis accessible to anyone with a smartphone. Spren is more convenient than comparable methods like DEXA and underwater weighing, and the results are more comprehensive and accurate than bathroom scales or other apps. Focusing on weight loss alone may not be helping you achieve your deeper health goals. If you're losing lean mass versus body fat, you're not getting fitter. With Spren you will: • Avoid the confusion and frustration of false plateaus. • Help understand if your nutrition, fitness, and recovery programs are working for you. • Ensure that you're making progress toward your deeper health goals. Discover the true progress of your fat loss, lean gains, metabolic health, and longevity with Spren's research-grade body composition analysis — go beyond the scale and take control of your health journey. Sign up for one of our comprehensive wellness subscriptions and start your journey today. You can cancel at any time. The results provided by this app are intended for informational purposes only and should not be used as a basis for any medical treatment or diagnosis. Terms of service: https://www.spren.com/terms-conditions Privacy policy: https://www.spren.com/privacy-policy Your data is processed securely in the cloud. getsupport@spren.com

Screenshots

Styku4 screens
Spren Body Composition Scanner4 screens

Verdict

The call

The clearest difference is update cadence: Spren Body Composition Scanner at every 9 days against Styku's monthly. Spren Body Composition Scanner also leads on ratings volume (1.5K vs 250). Styku's advantage is review sentiment (56% vs 46%) and device support (3 vs 1). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Styku sells 3 in-app purchases, starting at $49.99 per 3 months and Spren Body Composition Scanner sells 14 in-app purchases, starting at $10.49 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Styku against 4.7 for Spren Body Composition Scanner. That said, the two scores are not equally well evidenced: Spren Body Composition Scanner has 1.5K ratings behind it against 250, so its average is the more settled of the two. Written reviews are what separate them: 56% of Styku's written reviews are positive against 46% of Spren Body Composition Scanner's.

UpkeepUpdate frequency

Styku ships an update monthly, Spren Body Composition Scanner every 9 days. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

Scorecard5 real differences · 5 level
Styku versus Spren Body Composition Scanner: the parameters behind the verdict, then further details
ParameterStykuSpren Body Composition Scanner
PriceFreeFree
Rating4.7 (250 ratings)4.7 (1.5K ratings)
Positive reviews55.6% of reviews — better46.5% of reviews
Number of ratings2501.5K — better
Update frequencyMonthlyEvery 9 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.6 — better17
Further details — not scored
Size69 MB207 MB
Age rating4+17+
DeveloperStyku LLCElite HRV Inc

Customer experience

Styku

All ratings250 ratings
Positive92.8%
Neutral2.0%
Negative5.2%
Written reviews9 reviews
Positive55.6%
Neutral11.1%
Negative33.3%

Spren Body Composition Scanner

All ratings1,486 ratings
Positive94.5%
Neutral1.5%
Negative4.0%
Written reviews99 reviews
Positive46.5%
Neutral5.1%
Negative48.5%

Bugs and requests

Styku

Not enough reviews yet to summarise bugs or requests.

Spren Body Composition Scanner

Reported bugs

11 issues
  • No login possible
  • Doesn't work
  • Measurements are nowhere close to DEXA scans
  • Can't delete account
  • Useless
Show 6 more
  • Gimmicky at best
  • Impossible to get a reading since last update
  • App crashes when trying to set weight above 245lbs
  • Buggy
  • Bad image recognition
  • Doesn't scan under any circumstances

Requested features

3 requests
  • Integration with Apple Health for weight tracking
  • Demo or trial before subscription
  • Monthly subscription option

In-app purchases

3 purchases

Styku

Subscriptions3
  • Premium 3 Months Plan7 Days trial$49.993 Months
  • Premium 6 Months Plan7 Days trial$79.996 Months
  • Premium Annual Plan7 Days trial$99.991 Year
14 purchases

Spren Body Composition Scanner

Subscriptions11
  • Scan Essentials$10.491 Month
  • Monthly$14.991 Month
  • Monthly$19.991 Month
Show 8 more
  • 24/7 AI coaching support$20.991 Month
  • Monthly$24.991 Month
  • Scan Essentials$38.991 Year
  • Quarterly7 Days trial$59.993 Months
  • Annual$69.991 Year
  • Semiannual$89.996 Months
  • Annual7 Days trial$119.991 Year
  • 24/7 AI coaching support$129.001 Year
One-time3
  • Body Composition Analysis$8.99
  • Body Composition Analysis$17.99
  • Body Composition Analysis$35.99

Questions

Is Styku free?
Styku is free to download, with in-app purchases available.
Is Spren Body Composition Scanner free?
Spren Body Composition Scanner is free to download, with in-app purchases available.
Which has better reviews, Styku or Spren Body Composition Scanner?
Styku and Spren Body Composition Scanner are both rated 4.7 out of 5 on the App Store, from 250 and 1.5K ratings respectively.
Do Styku or Spren Body Composition Scanner have ads?
Neither Styku nor Spren Body Composition Scanner shows ads.
Which is updated more often, Styku or Spren Body Composition Scanner?
Styku ships an update monthly, and Spren Body Composition Scanner every 9 days. Most recently, Styku was updated on September 24, 2026 and Spren Body Composition Scanner on September 19, 2026.

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