Comparison

Built With Science+ vs PhysiqueOS

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

Head to head
About

Built With Science+

This intelligent fitness companion offers personalized workout plans and nutrition advice based on scientific insights. It adapts to your progress with real-time feedback, providing guidance for continuous gains and informed health decisions.

Highlights
  • Hyper-Personalized Workouts
  • Progressive Overload Guidance
  • Real-Time Diet Adjustments
  • AI-Powered Meal Scanner
  • 250+ Exercise Tutorials
  • Daily Knowledge Boosters
  • AI Fitness & Nutrition Assistant
Features
Read full description

Reach your goals faster with BWS+ all-in-one fitness coach. Frustrated with cookie-cutter workout plans and confusing nutrition advice? BWS+ is your intelligent coach and complete fitness companion for achieving the body you've always wanted. The app integrates insights from leading fitness scientists, coaches, and dietitians, offering personalized advice based on your unique body and goals. It evolves with you, adapting your workouts and nutrition based on real-time feedback, encapsulating decades of experience into a dynamic coach that tailors itself to your needs. The latest science, personalized to you - Hyper-Personalized Workouts: Built with Science's advanced algorithm creates a workout plan specifically for your body, goals, and schedule. Whether you're hitting the gym or training at home, we've got you covered. - Progressive Overload Guidance: Never plateau again. BWS+ tells you exactly how to adjust your weights and reps each session for continuous gains. - Real-Time Diet Adjustments: As your body changes, so do your nutritional needs. Our app adapts your meal plan weekly, ensuring you're always on track. All-in-One Fitness and Nutrition Solution - 250+ In-Depth Exercise Tutorials: Master proper form with our detailed video guides, packed with science-based insights. - AI-Powered Meal Scanner: Say goodbye to tedious calorie counting. Simply snap a photo of your meal, and our AI does the rest, accurately tracking your nutrition in seconds. - Daily Knowledge Boosters: Unlock 200+ bite-sized lessons to build your fitness IQ and make informed decisions about your health. One App is All You Need - AI Fitness & Nutrition Assistant: Get personalized answers to your fitness and nutrition questions, as if you're talking directly to Jeremy Ethier. - Muscle Group Prioritizer: Focus on specific muscles that need extra attention for balanced development. - Recomp Detector: Track simultaneous fat loss and muscle gain with our advanced body composition analysis. - Step Tracking and Daily Activity Goals: Seamlessly integrate with Apple Health and Google Fit to optimize your overall activity levels. We've combined cutting-edge technology with years of scientific research to create an app that delivers real, lasting transformations. No more guesswork, no more wasted time in the gym. BWS+ provides the structure and guidance you need to finally achieve the body you deserve. Download now and take the first step towards the best version of yourself! This app requires an active BuiltWithScience+ membership or an in-app subscription purchased through the App Store to access its features and content. Subscription details and terms are available within the app.

About

PhysiqueOS

This fitness tracker is designed for weightlifters and data-driven athletes. It offers detailed metrics, habit tracking, and AI insights to optimize training and recovery. Visualize progress, identify patterns, and stay consistent with evidence-based optimization.

Highlights
  • Track weight, sets, reps, RPE, and volume
  • Measure sleep, energy, mood, and recovery
  • Build progress trends
  • AI-powered adaptive reminders
  • Visualize training and lifestyle intersections
  • Streak-based motivation
Features
Read full description

PhysiqueOS is the fitness tracker built for lifters who value data, science, and results. Designed for evidence-based athletes and optimization-focused gym-goers, PhysiqueOS combines habit tracking, detailed metrics, and AI insights to help you train smarter — not just harder. Built for the Data-Driven Lifter - Track your weight, sets, reps, RPE, and volume - Measure performance across sleep, energy, mood, and recovery - Build trends over time that actually explain your progress Evidence-Based Optimization - Get weekly insights that align with principles of progressive overload, fatigue management, and recovery - AI-powered reminders adapt to your behavior — no more generic push notifications Analytics That Work for You - Visualize how your training, recovery, and lifestyle intersect - Spot patterns, plateaus, and surges in performance - Log in seconds, analyze over weeks and months Consistency Engineered - Streak-based motivation tied to habit loops - Personalized check-ins to reinforce behavior - Track more than workouts — track effort Whether you're cutting, bulking, or maintaining — PhysiqueOS acts as your personal performance dashboard. Get granular with your training. Stay consistent without burnout. Make progress that actually makes sense. PhysiqueOS: built by lifters, for lifters — with the science to back it up.

Screenshots

Built With Science+4 screens
PhysiqueOS4 screens

Verdict

The call

The clearest difference is in-app purchases: PhysiqueOS at none against Built With Science+'s 4. PhysiqueOS also leads on update cadence (daily vs every 2 weeks) and rating (5.0 vs 4.8). Built With Science+'s advantage is ratings volume (3.9K vs 1). On price, 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

Both are free to download. Built With Science+ sells 4 in-app purchases, starting at $29.99 per month. PhysiqueOS asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PhysiqueOS holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Built With Science+ has 3.9K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Built With Science+ ships an update every 2 weeks, PhysiqueOS daily. The most recent releases landed on September 23, 2026 and June 1, 2026 respectively.

Scorecard5 real differences · 5 level
Built With Science+ versus PhysiqueOS: the parameters behind the verdict, then further details
ParameterBuilt With Science+PhysiqueOS
PriceFreeFree
Rating4.8 (3.9K ratings)5.0 (1 ratings) — better
Positive reviews79.8% of reviews—
Number of ratings3.9K — better1
Update frequencyEvery 2 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.215.1 — better
Further details — not scored
Size233 MB39 MB
Age rating4+4+
DeveloperBuilt With Science Holdings CorpMark Tretyak

Customer experience

Built With Science+

All ratings3,926 ratings
Positive95.6%
Neutral1.9%
Negative2.5%
Written reviews807 reviews
Positive79.8%
Neutral6.2%
Negative14.0%

PhysiqueOS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Built With Science+

Reported bugs

4 issues
  • Workout data sometimes gets lost or marked incomplete
  • App takes a long time to open
  • Login and sign-up issues for existing customers
  • Inconsistent exercise recommendations and adjustments

Requested features

5 requests
  • Add ability to create and save custom recipes
  • Integrate with Apple Health and other fitness platforms
  • Provide more flexibility in workout scheduling
  • Enhance human coaching and support features
  • Improve performance and stability

PhysiqueOS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

Built With Science+

Subscriptions2
  • Monthly Membership14 Days trial$29.991 Month
  • Annual Membership14 Days trial$189.001 Year
One-time2
  • Intermediate Program Unlock$49.00
  • Beginner Program Unlock$49.00
None

PhysiqueOS

No in-app purchases

Questions

Is Built With Science+ free?
Built With Science+ is free to download, with in-app purchases available.
Is PhysiqueOS free?
PhysiqueOS is free to download, with no in-app purchases.
Which has better reviews, Built With Science+ or PhysiqueOS?
PhysiqueOS is rated higher. Built With Science+ averages 4.8 out of 5 from 3.9K ratings, while PhysiqueOS averages 5.0 from 1 ratings.
Do Built With Science+ or PhysiqueOS have ads?
Neither Built With Science+ nor PhysiqueOS shows ads.
Which is updated more often, Built With Science+ or PhysiqueOS?
Built With Science+ ships an update every 2 weeks, and PhysiqueOS daily. Most recently, Built With Science+ was updated on September 23, 2026 and PhysiqueOS on June 1, 2026.

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