builtwithscience.com

4.2
4.2 Based on 20 reviews

Built With Science is a fitness company founded by Jeremy Ethier in 2018, with a mission to revolutionize the fitness industry by replacing the myths and pseudoscience with a scientific and evidence-based approach. Our company offers personalized fitness ...

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Average Rating

4.2

/
5

20 Reviews

5 Star
76%
4 Star
0%
3 Star
5%
2 Star
10%
1 Star
10%

All Reviews

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Paula Müller
Fantastic programs and even better customer service! I rarely leave reviews, but honestly the BWS

Fantastic programs and even better customer service!

I rarely leave reviews, but honestly the BWS workout programs are excellent—well-structured and easy to follow. I used to go to F45 before but by using this app, I feel more motivated to workout than ever.

What really prompted me to write a review was their customer service. I recently reached out to let them know I was facing an unexpected surgical procedure and wouldn’t be able to use the app for 3 months. Not only were they understanding, but they proactively extended my subscription so I wouldn’t lose out on the money I paid. Wow! 🤩

In a world where it’s hard to cancel things, it was incredibly refreshing to have a company voluntarily pause and extend my plan. A great product backed by a team with integrity. Thank you! 💜

5
Date of experience: Mar 05, 2026
Paula Müller
Fantastic programs and even better…

Fantastic programs and even better customer service! I rarely leave reviews, but honestly the BWS workout programs are excellent—well-structured and easy to follow. I used to go to F45 before but by using this app, I feel more motivated to workout than ever. What really prompted me to write a review was their customer service. I recently reached out to let them know I was facing an unexpected surgical procedure and wouldn’t be able to use the app for 3 months. Not only were they understanding, but they proactively extended my subscription so I wouldn’t lose out on the money I paid. Wow! 🤩 In a world where it’s hard to cancel things, it was incredibly refreshing to have a company voluntarily pause and extend my plan. A great product backed by a team with integrity. Thank you! 💜

5
Date of experience: Mar 05, 2026
F. Desgranges
I strongly recommand Built With Science

I have been using Built With Science programs for several years now, first with pdfs and now with the app. Initially, I subscribed because of injuries that I did to myself after trying to follow workout videos. I must say that this program helped me to improve a lot in my strengh and in my exercise form without any new injury. The nutrition advice are of great scientific value and help a lot if you stay consistent. The app adds very nice features such as the all-in-one place for the whole program, the AI which helped me to build a personalized program, and also the meal scan. I strongly recommanded this to any relative who wanted to start a serious workout and nutrition plan.

5
Date of experience: Feb 22, 2026
Ab.mehairbi
Its complicated and its a scam

Its complicated and i hate it also if you subscribe there is no way to unsubscribe unless you change your card

1
Date of experience: Feb 19, 2026
Kimberly Bocking
Tried and True!

I LOVE BWS. The app is incredible, easy to use and they are consistently updating it and making it better. I had the pleasure of meeting Jeremy and his team at a focus group this summer, and to see how they all work together to make fitness easy and attainable for all people is incredible. My own personal growth, both fitness and other wise, has been in large part to this company. Keep up the great work guys, can’t wait to see what you do next!!!

5
Date of experience: Feb 03, 2026
Kieran O'Leary
It’s a good mix of workout and…

It’s a good mix of workout and nutrition tracking. I thought I could never replace cronometer but this has worked really well, but it’s also aware of my workouts and gives me guidance and videos. I like that I can say what gear I have and it tailors the workouts and gives me swaps. I look forward to the weekly nutrition adjustments which always make sense. The Jeremy ai feature is really good too, seems like it’s just ChatGPT but with full awareness of your nutrition and stats. Overall, I prefer this to the nippard and Israetel apps. I didn’t continue past the trial period with those, but I subscribed after the trial with this.

5
Date of experience: Feb 02, 2026
Luis
Awesome awesome awesome

Awesome awesome awesome! Love this app. I was a premium subscriber back when they used PDF’s and Google Sheets, and despite not being a fan of having to pay again for the app, overall — I’m so glad I did. Great app, user friendly and has everything you need in one place and with each update, it runs smoother and smoother. I would highly recommendMy one feedback is to add a way to sync with other apps like Fitbit, so it can track your steps.

5
Date of experience: Jan 29, 2026
Joe Lewis
Fantastic support

The app and programme provided was good and the support from Justin and the team is even better. Thank you

5
Date of experience: Jan 27, 2026
Rob J
BWS+ programme is excellent- try it!!!

I signed up about 7 months ago after seeing Jeremy's YouTube clips for a couple of years. I was spinning my wheels at the gym, no gains, still soft at the midsection; when he launched the challenge in the summer I decided to give it a try. I LOVE LOVE LOVE this app. I'm not good at tech and even I find it intuitive and easy to use but most importantly, it has motivated me to be disciplined and accountable to myself, with amazing results! The combination of training and nutrition advice and guidance is the secret- it's like having a personal trainer and diet expert in your pocket. Bonus- the AI Jeremy feature is very, very good; I feel like I am talking to a real person and advice is superb. BTW I'm 65 years old and have lots of gym experience but have never seen results like I'm getting with BWS+. If it can work for me it can work for anyone!

5
Date of experience: Jan 24, 2026
Jeremy Witt
Best fitness app hands down

I cannot say enough good things about this app or the people behind it. As a "newbie" on a proper health and wellness journey,this has everything you could ever want just short of hiring a nutritionist or a trainer. It tracks your food and macros. Gives great workouts and schedules while also tracking reps and sets. The best part for me has been the AI feature. Has answered all questions and concerns. Its almost like having a coach you can talk to anytime. Would recommend this to anybody looking to better their health. Also the customer service has been outstanding which is an added bonus!

5
Date of experience: Jan 17, 2026

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Business Details

  • Built With Science is a fitness company founded by Jeremy Ethier in 2018, with a mission to revolutionize the fitness industry by replacing the myths and pseudoscience with a scientific and evidence-based approach. Our company offers personalized fitness plans, workout programs, and nutritional guidance, all based on the latest research findings. Built With Science collaborates with world-renowned scientists, funds research studies, and conducts experiments to ensure that their fitness programs are backed by credible scientific evidence. Our commitment to providing reliable information and delivering tangible results has earned us a reputation as a trusted and effective fitness resource.See more

  • email support@builtwithscience.com
  • language https://builtwithscience.com

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