Second Nature

3.9
2.93K reviews
100K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Second Nature exists to change minds about losing weight.

Our app uses behavioural science to retrain your mind to make healthy choices automatically, so these stick in the long run.

But we don’t just look at what you’re eating and how much you weigh. We also look at your sleep patterns, exercise levels, how you regulate emotions, and other habits that impact the way you might be feeling.

We also pair you with a registered nutritionist who provides one-to-one advice and supports you to build new, healthier habits.

Our app also has hundreds of simple, indulgent recipes as well as daily articles that explain the science of healthy living - so you feel empowered to make changes, rather than just being told what to do.

Britain’s NHS recommends us because their own research suggests we’re twice as effective as other weight-loss programmes. 90% of Trustpilot reviews rate us as ‘excellent’ because 9 out of 10 people lose weight and keep it off, even after 12 months.

We want to make losing weight feel easier; to make it feel second nature.

Download the app and sign up today to start your journey!
Updated on
Dec 18, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, Personal info and 4 others
This app may collect these data types
Location, Personal info and 6 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.9
2.82K reviews
Kerry Leeson
January 4, 2026
Brilliant app with great advice from professionals who really care. After a very low period of time having gained some of the weight I lost, I'm now ready in my head to get right back to eating a better diet again. I'm looking forward to the help and support from the team at Second Nature and this time I aim to really stick to it and keep my weight down and stay down.
Did you find this helpful?
Andrew Dennis
November 25, 2025
I was diagnosed this from my GP after a pre diabetes test result. If it hadn't taken more than 5 months to arrive it may have been some use. As it is I took things into my own hands and have made great progress using fitnessPal. The app itself is no more than browser ware. A tangled mix of goals setting, articles and health tips. The core material is drip fed weekly? Why? Very poor design your better off reading a book on the subject from a well respected author as I did.
2 people found this review helpful
Did you find this helpful?
Second Nature
December 2, 2025
Hi Andrew, thanks for your feedback and congratulations on your progress - that's great to hear! We appreciate your thoughts on the app design. The daily articles aim to prevent overwhelm, but we hear it didn't suit your needs. If you'd like to share more at support@secondnature.io, we'd value it. Wishing you continued success!
Paula Baker
January 1, 2026
extremely difficult to access without any help as Xmas holidays and last attempt to join . my phone doesn't do apps without losing everything else so it's not easy to do any this. and certainly not accessible for people with literacy issues bothy parents couldn't read or write or use a phone so technicology is taking over everything and no other options
Did you find this helpful?
Second Nature
January 6, 2026
Hi Paula, we're truly sorry you've had this experience, especially during the Christmas period. We understand how frustrating technology barriers can be and would be glad to provide assistance with accessing the programme. Please send us an email at support@secondnature.io - we'd really like to help to get everything up and running for you.

What’s new

We've made some improvements to the app and fixed a few bugs.

App support

About the developer
SECOND NATURE HEALTHY HABITS LTD
support@secondnature.io
56 Wood Lane LONDON W12 7SB United Kingdom
+44 20 3488 0769