Spren Body Composition Scanner vs Variable Resistance Training
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Body fat percentage measurement
- BMI calculator
- Body composition analysis
- Weight tracking
- Personalized nutrition planning
- Multi-page PDF reports
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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
Variable Resistance Training
This app offers advanced tracking for resistance band workouts, automatically calculating resistance and progression based on your saved equipment. It also supports tracking weights and calisthenics, providing detailed analytics and a video library for exercise demonstrations.
- Automatic band resistance calculation
- Dynamic resistance progression generation
- Weight and calisthenics tracking
- Full video exercise library
- Detailed analytics and progress charts
- Customizable rest timer
- Superset functionality
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The most advanced resistance band training app is here. Track bands, weights, calisthenics, and sliding bench trainers - all in one app with an intuitive, user-friendly interface. Automatically calculate band resistance and generate a resistance progression based on your saved equipment. Train smarter, see real progress, and stay consistent every session. Unlike generic fitness apps, Variable Resistance Training is the only app that combines true VRT tracking with weights, calisthenics, and sliding bench trainers, making it a complete solution for all strength and bodyweight training. Revolutionary Automatic Band Progression: - Add your bands (or any combination) to your Saved Equipment List - The app automatically generates a dynamic progression list from lowest to highest resistance, showing exact band or stacked band combinations for each resistance level - Band prestretch values are automatically calculated based on your equipment dimensions, giving you an additional difficulty indicator - Tap + / - during your workout and the app instantly updates resistance and selects the correct band or stacked combination, removing all guesswork - Works with any bands - Flexible, intuitive design makes adding/removing exercises, sets, and progression adjustments effortless Track Weights, Calisthenics, & Sliding Bench Trainers: - Standard bodyweight exercises (no equipment needed) - Assisted calisthenics using bands for support - Weighted exercises alongside your VRT workouts - Sliding bench trainers including level and added resistance Other Key Features: - Band Video Library – Clear demonstrations for VRT exercises - Robust Equipment Library – Pre-loaded with data from leading band systems, fully compatible with any resistance band or product - Custom Exercises & Programs – Build your own routines or adapt existing ones easily - Advanced Logging – Track sets, reps, RPE, resistance levels, and workout history - Customizable Rest Timer – Set and adjust rest periods for each exercise or set, with flexible options to match your workout pace - Detailed Analytics – See progress charts and track performance over time - Supports All Training Styles – Resistance bands, weights, calisthenics, and sliding bench trainers - Smarter Progression – Measure your true training load, remove guesswork, and make consistent gains - Superset Functionality – Link exercises and autoatically switch between them for seemless set tracking - Extremely User-Friendly UI – Effortlessly navigate workouts, progressions, exercises, and sets with flexible controls Why choose Variable Resistance Training? - Only app with true prestretch-based resistance tracking - Only app with automatic band progression from saved equipment - Only app that tracks bands, weights, calisthenics, and sliding bench trainers - Only app that combines powerful features with an extremely user-friendly, flexible interface for effortless tracking Whether your goal is building muscle, improving mobility, or training at home, Variable Resistance Training gives you the most versatile, accurate, and complete strength tracking system available for training with various modalities. Note: A subscription is required to continue using Variable Resistance Training after your 1-month free trial. Terms of Service: https://vrt-app.com/terms-of-service/ Privacy Policy: https://vrt-app.com/privacy-policy/ https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is rating: Spren Body Composition Scanner at 4.7 against Variable Resistance Training's 4.0. Spren Body Composition Scanner also leads on ads (none vs shown) and ratings volume (1.5K vs 4). Variable Resistance Training's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17). On price, update cadence, in-app purchases and monetization model 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
Both are free to download. Spren Body Composition Scanner sells 14 in-app purchases, starting at $10.49 per month and Variable Resistance Training sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Spren Body Composition Scanner holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Spren Body Composition Scanner has 1.5K ratings behind it against 4, so its average is the more settled of the two.
Spren Body Composition Scanner ships an update every 9 days, Variable Resistance Training every 6 days. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | Spren Body Composition Scanner | Variable Resistance Training |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.5K ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 46.5% of reviews | — |
| Number of ratings | 1.5K — better | 4 |
| Update frequency | Every 9 days | Every 6 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17 | 15.0 — better |
| Further details — not scored | ||
| Size | 207 MB | 97 MB |
| Age rating | 17+ | 4+ |
| Developer | Elite HRV Inc | Andrew Soumbos |
Customer experience
Spren Body Composition Scanner
Variable Resistance Training
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
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- 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
Variable Resistance Training
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Spren Body Composition Scanner
- Scan Essentials$10.491 Month
- Monthly$14.991 Month
- Monthly$19.991 Month
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- 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
- Body Composition Analysis$8.99
- Body Composition Analysis$17.99
- Body Composition Analysis$35.99
Variable Resistance Training
- VRT Monthly1 Month trial$3.991 Month
- VRT Annual1 Month trial$39.991 Year
- VRT Lifetime Pro$149.99
Questions
Is Spren Body Composition Scanner free?
Is Variable Resistance Training free?
Which has better reviews, Spren Body Composition Scanner or Variable Resistance Training?
Do Spren Body Composition Scanner or Variable Resistance Training have ads?
Which is updated more often, Spren Body Composition Scanner or Variable Resistance Training?
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