Comparison

Built With Science+ vs Intensity Check

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

Intensity Check

Features
Read full description

Intensity Check — Did you actually push harder today? You just finished a workout. It felt good — but was it actually better than your usual? Intensity Check visualizes your latest workout and compares it against your previous sessions of the same type, so you know how today really stacked up. No dashboards to configure. No streaks to babysit. Open the app and get a clear read on your effort - right after you finish, right on your wrist. How it works Intensity Check reads workouts recorded by Apple's Fitness app and lines up your latest session next to the ones before. A simple chart comparison shows you at a glance whether you went harder, longer, or eased off. Compare what matters for each workout type: • Active & total calories • Duration and calories per minute • Average & max heart rate • Distance, average pace, and speed • Pace per 100m for swims • Lap counts • Heart rate over the workout, superimposed over the previous ones Metrics adapt automatically to the activity — pace for runs and walks, speed for rides, pace-per-100 for pool swims, heart rate and calories for strength and HIIT. Catches the workout you forgot to end Left the timer running through your cool-down, your commute, or the rest of the afternoon? A three-hour "run" wrecks your pace and calories-per-minute and throws off every comparison. Intensity Check spots these automatically — flagging sessions where your heart rate went idle long before the timer stopped, or where the duration dwarfs your usual for that activity. It suggests a corrected end time based on when you were actually working, and you can fine-tune it with a tap. Your effort-based metrics stay accurate, so the comparison reflects the workout you really did. Built for Apple Watch The watch app runs on its own, no phone required. When you wrap up a workout, Intensity Check prompts you right there so you can see how it measured up before you've even caught your breath. Supported workouts Running (indoor & outdoor), walking, hiking, cycling (indoor & outdoor), pool & open-water swimming, strength training, functional strength, HIIT, yoga, and more. Private by design Your health data stays on your device and in Apple Health. Intensity Check reads what it needs to make the comparison, nothing is collected, and nothing leaves your devices. Stop guessing whether you had a good session. Check it instead.

Screenshots

Built With Science+4 screens
Intensity Check4 screens

Verdict

The call

The clearest difference is in-app purchases: Intensity Check at none against Built With Science+'s 4. Built With Science+'s advantage is iOS requirement (16.2 vs 18.0). On price, ads and device support 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. Intensity Check asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Built With Science+ versus Intensity Check: the parameters behind the verdict, then further details
ParameterBuilt With Science+Intensity Check
PriceFreeFree
Rating4.8 (5K ratings) — better—
Positive reviews79.8% of reviews—
Number of ratings5K — better—
Update frequencyFortnightly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
DevicesiPhone, iPad, Apple Watch — betteriPhone, Apple Watch
Requires iOS16.2 — better18.0
Further details — not scored
Size235 MB4 MB
Age rating4+4+
DeveloperBuilt With Science Holdings CorpErwin Mazariegos

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

Intensity Check

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

Intensity Check

No in-app purchases

Questions

Is Built With Science+ free?
Built With Science+ is free to download, with in-app purchases available.
Is Intensity Check free?
Intensity Check is free to download, with no in-app purchases.
Do Built With Science+ or Intensity Check have ads?
Neither Built With Science+ nor Intensity Check shows ads.

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