Comparison

Spren Body Composition Scanner vs AVIX

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

Head to head
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

About

AVIX

This app offers medical-grade body assessment using your smartphone. It provides accurate body composition analysis, including body fat percentage and muscle mass, through advanced AI and 3D rendering. Track your progress and gain personalized insights without needing external equipment or visiting clinics.

Highlights
  • Accurate body composition measurements
  • 3D body rendering
  • Advanced health indicators
  • Goal setting and progress tracking
  • On-device privacy
  • Apple Health integration
Features
Read full description

AVIX: See who you’re becoming. Transform your health journey with intelligent body analysis. Monitor key body composition metrics, visualize your progress, and stay on track with personalized insights. DESCRIPTION AVIX transforms a simple body scan into meaningful insights about your health and fitness. Whether you’re building muscle, losing body fat, or maintaining your physique, AVIX gives you an easy way to measure your progress over time. Track your entire body transformation journey with photorealistic 3D body scans, detailed body composition insights, and personalized progress tracking—all from your smartphone in under 30 seconds. Unlike a scale that only shows your weight, AVIX tracks the metrics that actually matter. MONITOR YOUR BODY COMPOSITION Track changes in: • Body Fat % • Muscle Mass • Body Mass Index (BMI) • Waist Measurement • Belly Waist • Hip Circumference • Neck Circumference • Bone Mineral Mass SEE TRENDS OVER TIME Every scan becomes part of your personal progress timeline so you can visualize improvements instead of relying on a single measurement. Compare scans to see: • Muscle gained • Body fat lost • Circumference changes • Long term body composition trends WHY AVIX? • Approximately 98% accuracy compared with professional body composition equipment and tape measurements • Photorealistic 3D body scans that can be viewed from every angle • Body Transformation Timeline to visualize changes throughout your body transformation journey • In-depth tracking of muscle mass, body fat, bone mineral mass, neck, waist, hips, body ratios, muscle preservation rate, and many additional body composition metrics • U.S.-patented selfie mode lets you complete a full body scan in under 30 seconds using only your smartphone • Maximum convenience with no fasting, hydration protocol, scale, or specific location required. Simply scan anywhere, anytime using your smartphone DESIGNED FOR REAL PROGRESS AVIX makes it easy to understand how your body is changing with clear visuals, historical comparisons, and simple reports that keep you motivated. Whether you’re training for performance, improving your health, or working toward a fitness goal, AVIX helps you stay accountable with objective measurements. UPGRADE TO AVIX PRO Unlock the complete experience with: • Unlimited body scans • Full scan history • Advanced progress tracking • Detailed trend analysis • Priority access to new features Your body is constantly changing. Measure it. Understand it. Improve it. AVIX. See Beyond the Scale. WHO IT’S FOR Whether you’re just starting your wellness journey or you’re an elite athlete, AVIX Body Scan helps you understand how your body is changing so you can focus on meaningful progress instead of just your weight. For the most accurate results, wear tight-fitting clothing so AVIX can clearly capture your body shape during each scan. Privacy Policy: https://blog.visualizeme.ai/privacy-policy/ DISCLAIMER AVIX Body Scan is intended for general health and wellness purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Consult a qualified healthcare professional before making medical decisions based on your results. Terms of Use: https://blog.visualizeme.ai/terms-conditions/

Screenshots

Spren Body Composition Scanner4 screens
AVIX3 screens

Verdict

The call

The clearest difference is rating: Spren Body Composition Scanner at 4.7 against AVIX's 4.3. Spren Body Composition Scanner also leads on ratings volume (1.5K vs 272). AVIX's advantage is review sentiment (58% vs 46%). On price, update cadence, 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. Spren Body Composition Scanner sells 14 in-app purchases, starting at $10.49 per month and AVIX sells 13 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Spren Body Composition Scanner holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: Spren Body Composition Scanner has 1.5K ratings behind it against 272, so its average is the more settled of the two. Written reviews complicate that: 46% of Spren Body Composition Scanner's written reviews are positive against 58% of AVIX's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Spren Body Composition Scanner ships an update every 9 days, AVIX every 11 days. Both last shipped on October 22, 2026.

Scorecard3 real differences · 7 level
Spren Body Composition Scanner versus AVIX: the parameters behind the verdict, then further details
ParameterSpren Body Composition ScannerAVIX
PriceFreeFree
Rating4.7 (1.5K ratings) — better4.3 (272 ratings)
Positive reviews46.5% of reviews57.6% of reviews — better
Number of ratings1.5K — better272
Update frequencyEvery 9 days — betterEvery 11 days
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone
Requires iOS1717.0
Further details — not scored
Size207 MB293 MB
Age rating17+17+
DeveloperElite HRV IncVisualize AI Technologies, Inc.

Customer experience

Spren Body Composition Scanner

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

AVIX

All ratings272 ratings
Positive81.3%
Neutral4.8%
Negative14.0%
Written reviews59 reviews
Positive57.6%
Neutral0.0%
Negative42.4%

User reviews

Spren Body Composition Scanner

From 1.5K App Store ratings

What we love

  • 👍 Easy to operate
  • 🚀 Motivating
  • 👍 Incredible app
  • 👍 Accurate
  • 👍 Talks you through the scan

Room to improve

  • 🐛 No login possible
  • 🐛 Doesn't work
  • 🐛 Measurements are nowhere close to DEXA scans
  • 🐛 Can't delete account
  • 🐛 Useless

AVIX

From 272 App Store ratings

What we love

  • 🚀 Game Changer
  • 👍 Easy & Informative
  • 👍 Revolutionary
  • 👍 Great App
  • 👍 Amazing

Bugs and 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

AVIX

Requested features

1 request
  • More body metrics like Lean Body Mass, Muscle Mass

In-app purchases

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
13 purchases

AVIX

Subscriptions13
  • Best Price For Monthly$6.991 Month
  • Visualize Premium$7.991 Month
  • Free Trail For Monthly3 Days trial$9.991 Month
Show 10 more
  • Visualize Premium$12.991 Month
  • AVIX Premium$14.991 Month
  • AVIX Premium$19.991 Month
  • Visualize Premium14 Days trial$20.001 Month
  • Visualize Premium$39.951 Year
  • Visualize Premium$47.991 Year
  • Visualize Premium7 Days trial$49.951 Year
  • Visualize Premium$57.991 Year
  • Visualize Premium7 Days trial$99.991 Year
  • Visualize Premium$200.001 Year

Questions

Is Spren Body Composition Scanner free?
Spren Body Composition Scanner is free to download, with in-app purchases available.
Is AVIX free?
AVIX is free to download, with in-app purchases available.
Which has better reviews, Spren Body Composition Scanner or AVIX?
Spren Body Composition Scanner is rated higher. Spren Body Composition Scanner averages 4.7 out of 5 from 1.5K ratings, while AVIX averages 4.3 from 272 ratings.
Do Spren Body Composition Scanner or AVIX have ads?
Neither Spren Body Composition Scanner nor AVIX shows ads.
Which is updated more often, Spren Body Composition Scanner or AVIX?
Spren Body Composition Scanner ships an update every 9 days, and AVIX every 11 days. Most recently, Spren Body Composition Scanner was updated on October 22, 2026 and AVIX on October 22, 2026.

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