Trainwell vs Built With Science+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Trainwell
Receive personalized workout plans and step-by-step guidance from a certified personal trainer. Adapt your fitness routine to your goals, schedule, and any injuries, with the flexibility to train anywhere, anytime.
- 1-on-1 certified personal trainer
- Personalized workout plans
- Adaptive workouts
- Step-by-step guidance
- Live feedback on pacing and form
- Workout flexibility (gym or home)
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It’s time to build a stronger, healthier, and more confident you with Trainwell. Why trainwell? Because you deserve more than just a workout plan: - Dedicated Human Personal Trainer: Your 1-on-1 certified personal trainer builds you a personalized workout plan and continuously adapts every workout to your goals, schedule, and injuries. Onboarding call included: Every new member gets a 40-minute 1-on-1 call with their trainer to build their first 4-week plan together. - Step-by-step guidance: You’ll get detailed instructions from your trainer and live feedback on your pacing and form in the app. - Whenever & wherever: Workout whenever you want, at the gym or from the comfort of your own home, with the flexibility of the trainwell app. Unlimited messaging: Message your trainer anytime. Ask about your form, your plan, your energy. Video messaging & live video calls: Your trainer sends video feedback, form-check breakdowns, and coaching cues directly in the app. Schedule a live video call whenever you need a deeper check-in. Form-check video reviews: Send your trainer a video of any exercise and get personalized feedback on your technique, so you move safely and get more from every rep. Perimenopause & menopause support for women: trainwell trainers specialize in hormonal health, bone density, muscle retention, and the real demands of women / moms’ midlife fitness. Full trainer specialties: Strength training, perimenopause & menopause, GLP-1 weight loss, pre/postpartum fitness, injury prevention & rehab, athletic performance, body recomposition, and at-home & travel workouts. Progress tracking: Streak tracking, workout history, and form-check feedback show you how far you’ve come on your own terms. 1,500+ exercises: An extensive exercise library with video demos, trainer-written cues, and modifications for every fitness level and situation. Trainer match included: You’re matched with a trainer based on your goals, schedule, and preferences, including gender preference. Switch to a new trainer whenever you want. Device integrations: Full motion tracking with Apple Watch and Wear OS. Activity tracking with Fitbit and Garmin. Syncs with Apple Health. Proven and trusted: 4.9 stars from 5,000+ App Store ratings. 52,000+ members. Official partner of Peloton Personal Trainer. Named Best Personal Trainer App of 2025 by Forbes. Positive change is only a few clicks away. Join trainwell today and get your first 14 days FREE! Health Data Disclaimer: trainwell reads and writes health and workout to/from Apple Health using the Apple Health Kit API. This data is used to personalize your trainwell experience and help keep your trainer informed as to your workout and health habits.
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.
- Hyper-Personalized Workouts
- Progressive Overload Guidance
- Real-Time Diet Adjustments
- AI-Powered Meal Scanner
- 250+ Exercise Tutorials
- Daily Knowledge Boosters
- AI Fitness & Nutrition Assistant
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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.
Screenshots
Verdict
The clearest difference is in-app purchases: Trainwell at none against Built With Science+'s 4. Trainwell also leads on review sentiment (88% vs 80%). On price, rating, ratings volume and update cadence 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. Built With Science+ sells 4 in-app purchases, starting at $29.99 per month. Trainwell asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Trainwell against 4.8 for Built With Science+. Both are backed by a comparable volume of ratings — 5.5K and 4.5K respectively. Written reviews are what separate them: 88% of Trainwell's written reviews are positive against 80% of Built With Science+'s.
Trainwell ships an update every 8 days, Built With Science+ fortnightly. The most recent releases landed on October 19, 2026 and October 20, 2026 respectively.
| Parameter | Trainwell | Built With Science+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (5.5K ratings) — better | 4.8 (4.5K ratings) |
| Positive reviews | 88.3% of reviews — better | 79.8% of reviews |
| Number of ratings | 5.5K — better | 4.5K |
| Update frequency | Every 8 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, Apple Watch | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.6 | 16.2 — better |
| Further details — not scored | ||
| Size | 151 MB | 233 MB |
| Age rating | 12+ | 4+ |
| Developer | Delta Band Inc. | Built With Science Holdings Corp |
Customer experience
Trainwell
Built With Science+
User reviews
Trainwell
From 5.5K App Store ratingsWhat we love
- 👍 Accountability and motivation
- 🚀 Convenient and flexible workouts
- 💪 Effective for building strength and fitness
- 🤝 Personalized coaching and support
- 📈 Helps track progress and see results
Room to improve
- 🐛 App glitches and bugs
- 🤖 Impersonal experience without in-person interaction
- 💰 High subscription cost
- 🕰️ Rigid workout scheduling and tracking
- 📚 Lack of detailed exercise instructions
Built With Science+
From 4.5K App Store ratingsWhat we love
- 👍 Comprehensive fitness and nutrition tracking
- 🚀 Convenient all-in-one app
- 📚 Helpful educational lessons
- 💪 Science-backed program
- 🎯 Customized and adaptive workouts
Room to improve
- 🐛 Occasional performance issues and bugs
- 🔍 Limited food database and recipe options
- 📱 Lack of integration with other fitness apps and devices
- 🕰️ Inflexible workout scheduling
- 💬 Limited human interaction and coaching support
Bugs and requests
Trainwell
Reported bugs
4 issues- App freezes and crashes during workouts
- Syncing issues with Apple Watch
- Inconsistent rep and set tracking
- Difficulty logging in and accessing account
Requested features
5 requests- Allow users to customize and rearrange workouts
- Provide more exercise form guidance and feedback
- Offer more flexible subscription options
- Improve app stability and reduce glitches
- Integrate nutrition and lifestyle tracking
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
In-app purchases
Trainwell
No in-app purchases
Built With Science+
- Monthly Membership14 Days trial$29.991 Month
- Annual Membership14 Days trial$189.001 Year
- Intermediate Program Unlock$49.00
- Beginner Program Unlock$49.00
Questions
Is Trainwell free?
Is Built With Science+ free?
Which has better reviews, Trainwell or Built With Science+?
Do Trainwell or Built With Science+ have ads?
Which is updated more often, Trainwell or Built With Science+?
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