Comparison

Spren Body Composition Scanner vs BOB

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

BOB

Instantly analyze food nutrition labels by taking a photo. Get simple verdicts on ingredients based on health principles, making it easy to make informed food choices without confusing jargon.

Highlights
  • Instant label scanning via camera
  • Health-based ingredient verdicts
  • Easy-to-understand summaries
  • Privacy-respecting design
  • Analysis inspired by health principles
Features
Read full description

BOB-E™ makes it easy to understand what’s really in your food. Just snap a photo of a nutrition label, and BOB-E™ will instantly analyze it based on health principles inspired by Robert F. Kennedy Jr. Whether you’re shopping for yourself or your family, BOB-E™ helps you make smarter, cleaner choices by breaking down food ingredients into simple verdicts of approved disprove or mixed. No calorie math, no confusing jargon — just real talk about what you’re putting in your body. Features: • Instant label scanning with your phone’s camera • Verdicts based on well-researched health concerns • Easy-to-understand summaries • Lightweight and privacy-respecting Start scanning and take control of your food choices with BOB-E™.

Screenshots

Spren Body Composition Scanner4 screens
BOB4 screens

Verdict

The call

The clearest difference is price: Spren Body Composition Scanner at Free against BOB's $1.99. Spren Body Composition Scanner also leads on ratings volume (1.5K vs 3). BOB's advantage is in-app purchases (none vs 14) and rating (5.0 vs 4.7). On ads, device support and iOS requirement 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

Spren Body Composition Scanner is free to download; BOB costs $1.99 up front. Spren Body Composition Scanner sells 14 in-app purchases, starting at $10.49 per month. BOB asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

BOB holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Spren Body Composition Scanner has 1.5K ratings behind it against 3, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
Spren Body Composition Scanner versus BOB: the parameters behind the verdict, then further details
ParameterSpren Body Composition ScannerBOB
PriceFree — better$1.99
Rating4.7 (1.5K ratings)5.0 (3 ratings) — better
Positive reviews46.5% of reviews—
Number of ratings1.5K — better3
Update frequencyEvery 9 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhoneiPhone, iPad — better
Requires iOS17 — better18.4
Further details — not scored
Size207 MB13 MB
Age rating17+4+
DeveloperElite HRV IncKol Dorney

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%

BOB

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

BOB

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

BOB

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 BOB free?
BOB costs $1.99, with no in-app purchases.
Which has better reviews, Spren Body Composition Scanner or BOB?
BOB is rated higher. Spren Body Composition Scanner averages 4.7 out of 5 from 1.5K ratings, while BOB averages 5.0 from 3 ratings.
Do Spren Body Composition Scanner or BOB have ads?
Neither Spren Body Composition Scanner nor BOB shows ads.

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