Built With Science+ vs Aevis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Aevis
This personal health agent integrates with Apple Health to provide holistic daily health management. It analyzes sleep, recovery, training, and nutrition to offer practical next steps and adapts plans based on your schedule and feedback.
- Integrates with Apple Health
- Holistic health analysis (sleep, recovery, training, nutrition)
- Adaptive daily plan adjustments
- Meal photo logging
- Exercise form feedback
- Voice, text, and media input
- Weekly progress reports
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AI fitness app that adjusts workouts based on sleep and recovery AI workout coach that adapts to your daily energy and schedule AI fitness app that adapts your training as you progress [Should I train today, recover, or change the plan?] Aevis is the AI-native health agent for people who train. It brings your training, sleep, recovery, nutrition, goals and real-life context together to help decide what matters next — then keeps working as things change. [DASHBOARDS BUILT AROUND YOU] Your health doesn't fit into a fixed set of charts. Aevis can generate personalized dashboards, views and reports around what you actually want to understand — from training load and recovery to sleep, nutrition and longer-term trends. Ask about something you care about, and Aevis can turn the relevant data into a view built for that question. [PROACTIVE, NOT JUST REACTIVE] Aevis doesn't have to wait for you to open the app and ask. It can keep track of what matters, reach out when something needs your attention, adapt plans as your situation changes, and follow up on what happens next. [IT REMEMBERS THE CONTEXT] Aevis keeps long-term context around your goals, preferences, training history, routines and past decisions, so every conversation doesn't have to start from zero. Over time, it can understand not just today's numbers, but how they relate to what you've been doing and what you're trying to achieve. [FROM HEALTH DATA TO THE NEXT MOVE] Aevis brings training, sleep, recovery and nutrition into the same decision-making context. Instead of leaving you with another score to interpret, it helps answer practical questions like: • Should I train normally today or back off? • How should I adjust after a poor night of sleep? • What has changed in my recovery recently? • How should this week's training plan adapt? • What patterns are showing up across my health data? [FROM A DECISION TO REAL EXECUTION] Aevis doesn't stop at recommendations. It can create and adjust training plans and turn decisions into actions. With Speediance, Aevis can write workouts directly into supported training experiences, connecting health context, planning and execution in one continuous loop. [BUILT TO STAY WITH THE WORK] Aevis is designed as an agent, not just a chatbot. It can continue working across conversations, keep context over time, proactively take on ongoing tasks, and use connected tools to help move things forward. [YOUR TRAINING, WITH YOUR WHOLE HEALTH IN VIEW] Train with a system that can understand more than the workout itself — and keep adapting as your body, schedule and goals change. Works with Apple Health. Aevis is not a medical device and is not intended to diagnose, treat, cure or prevent medical conditions.
Screenshots
Verdict
The clearest difference is in-app purchases: Aevis at none against Built With Science+'s 4. Aevis also leads on review sentiment (100% vs 80%) and update cadence (weekly vs fortnightly). Built With Science+'s advantage is ratings volume (4.9K vs 7) and device support (3 vs 1). On price, rating, ads 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
Both are free to download. Built With Science+ sells 4 in-app purchases, starting at $29.99 per month. Aevis asks for nothing beyond the download.
Aevis 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 4.9K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 80% of Built With Science+'s written reviews are positive against 100% of Aevis's.
Built With Science+ ships an update fortnightly, Aevis weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Built With Science+ | Aevis |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4.9K ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 79.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 4.9K — better | 7 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 16.2 | 16.0 — better |
| Further details — not scored | ||
| Size | 235 MB | 35 MB |
| Age rating | 4+ | 17+ |
| Developer | Built With Science Holdings Corp | Shenzhen Speediance Living Technology Co., Ltd |
Customer experience
Built With Science+
Aevis
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
Aevis
Not enough reviews yet to summarise bugs or requests.
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
Aevis
No in-app purchases









