Second Nature

3.9
3.04K reviews
100K+
Downloads
Content rating
Everyone
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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
Feb 18, 2026

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
2.94K reviews
michael ryan
February 10, 2026
Absolutely dreadful. I am 83 years old and no stranger to computers but it was awkward to install. I wanted to install it on my PC, after many hours of confusion I had to install it on my iPhone. We old people want to keep up but the pace is overwhelming. That is not to say, I am not as pleased with the app as I was last ime I used it. I would like to say to all programmers look at the aged once in a while because one day you will be old like me.
7 people found this review helpful
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Second Nature
February 12, 2026
Hi Michael, thank you for your feedback - we're sorry for the frustrating experience here. Your point about considering all ages is well taken. You should be able to use the web version of the programme on your PC so please contact support@secondnature.io or give us a call on 020 3488 0769 (weekdays, 9-5) and we'll help get you set up.
Nikki Vowles-Magee
March 2, 2026
Personalised coaching to improve lifestyle empowering individuals to make informed & healthy choices. Fantastic to be a part of the SN community - I'd give this app 5 stars but the app is not 100% user friendly. Every single detail necessary to lose weight and become a healthier individual is provided. It is up to the individual participant to use the knowledge gained and make healthy choices. The app falls short if you don't have a smart watch.
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Fiona Kavanagh
February 23, 2026
App is great for the courses, but has a problem with connectivity. It only occasionally links to the scales and doesn't link with steps counting at all. Not a huge problem as you can add your tracking manually.
1 person found this review helpful
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Second Nature
February 27, 2026
Hi Fiona, we're sorry to hear that you're having some trouble with your tracking at the moment. Please do send us a message at support@secondnature.io and we'll be on hand to help with some troubleshooting!

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