Comparison

Spren Body Composition Scanner vs Resyna

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

Resyna

Features
Read full description

Resyna is a quiet place to settle. It plays gentle, layered sound that follows your heart rhythm and slowly guides your breathing toward a calmer, steadier pace. Slow, paced breathing is a well-studied way to help the body settle — what researchers call coherence. It's made to support relaxation, not to treat any condition. TWO WAYS TO USE IT Calm & Focus — soft, consonant tones layered under a calming bed. Nothing to wear, nothing to connect. Press play and breathe. Adaptive sessions — connect an Apple Watch or a Bluetooth heart-rate sensor and the sound responds to you in real time, easing your breath slower as you settle. Without a sensor it uses a gentle default pace, so it still works. RESYNA TOUCH Drag a finger and colour blooms under it. Something for your hands while the sound plays, or on its own. BUILT TO STAY OUT OF YOUR WAY Audio keeps playing when you leave the screen or lock the phone, until you tap End. Tap any reading during a session — calm, coherence, breath, heart rate — for a plain-language explanation of what it means. HOW TO START Headphones help, if they're comfortable for you. Try two to five minutes at an easy volume, then build up gradually. Stop if you feel any discomfort, dizziness, or unease. Resyna is not a medical device and not medical advice. It does not diagnose, treat, or cure any condition. If you are pregnant or have epilepsy or a heart condition, check with your doctor first. Do not operate heavy machinery after listening. Resyna is a product of VizyPlan, licensed by VizyPlan. Patent pending. Privacy: https://resyna.ai/privacy · Terms: https://resyna.ai/terms

Screenshots

Spren Body Composition Scanner4 screens
Resyna4 screens

Verdict

The call

The clearest difference is in-app purchases: Resyna at none against Spren Body Composition Scanner's 14. Resyna also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17). On price and ads 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. Resyna asks for nothing beyond the download.

Scorecard3 real differences · 7 level
Spren Body Composition Scanner versus Resyna: the parameters behind the verdict, then further details
ParameterSpren Body Composition ScannerResyna
PriceFreeFree
Rating4.7 (1.5K ratings) — better—
Positive reviews46.5% of reviews—
Number of ratings1.5K — better—
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod, Apple Watch — better
Requires iOS1715.1 — better
Further details — not scored
Size207 MB175 MB
Age rating17+4+
DeveloperElite HRV IncVizyPlan Inc

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

Resyna

Not enough reviews yet to summarise bugs or requests.

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
None

Resyna

No in-app purchases

Questions

Is Spren Body Composition Scanner free?
Spren Body Composition Scanner is free to download, with in-app purchases available.
Is Resyna free?
Resyna is free to download, with no in-app purchases.
Do Spren Body Composition Scanner or Resyna have ads?
Neither Spren Body Composition Scanner nor Resyna shows ads.

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