Comparison

Second Nature vs Better UK

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Second Nature

This app uses behavioral science to help you build healthy habits for long-term weight loss. It tracks sleep, exercise, and emotional regulation, offering personalized advice from a nutritionist and a library of recipes and educational articles.

Highlights
  • Behavioral science approach
  • Personalized nutritionist support
  • Holistic habit tracking (sleep, exercise, emotions)
  • Healthy recipe library
  • Daily educational articles
  • Apple HealthKit integration
Features
Read full description

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! Second Nature uses Apple HealthKit to integrate your phone's step data to help you set goals.

About

Better UK

Discover and book fitness classes, swimming, and gym sessions at local facilities. Access on-demand workouts, AI-powered habit coaching, and 24/7 health support for a holistic wellbeing experience.

Highlights
  • Book and manage fitness, swimming, and activity sessions
  • On-demand workouts and healthy habits coaching
  • 24/7 GP and health support
  • Find and save local facilities
  • Check opening times and book courts
  • Access member offers and discounts
Features
Read full description

Show up and feel better with the Better UK app. Find and book fitness classes, swimming and gym sessions near you and access Live Better: your digital suite of health and wellbeing services that you can access anytime, anywhere, all included in your membership. With Live Better, you can support your body and mind wherever life takes you. Work out at home or stay active on the go with on-demand fitness classes and build healthier habits one day at a time with your AI powered healthy habits coach. Whether you're moving more, trying something new or making time for yourself, Better UK puts your health in your hands. Download the app today. With the Better UK app, you can: - Book and manage your fitness classes, swimming and activity sessions - Access Live Better: on-demand workouts from Les Mills and Wexer, healthy habits coaching powered by Holly Health and access 24/7 GP and health support with Abi Health - Find your nearest facilities or swimming pools and save them to your favourites - Check facility and activity opening times - Book squash and badminton courts - Explore exclusive member offers and discounts with Live Better - Buy tickets for fun activities - Contact us - Access your facility using Self check-in Find more ways to move, play and learn. Download the app and book it with Better. For more information, visit better.org.uk Better is a registered trademark and trading name of GLL (Greenwich Leisure Limited), a charitable social enterprise. APPLE HEALTHKIT We also use HealthKit to allow users to share their activity and workout data with the app. This data is used to incentivise users to stay active.

Screenshots

Second Nature4 screens
Better UK4 screens

Verdict

The call

The clearest difference is review sentiment: Second Nature at 65% against Better UK's 4%. Second Nature also leads on rating (4.3 vs 1.6) and update cadence (every 2 days vs every 6 weeks). On price, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Second Nature holds the better App Store score, 4.3 against 1.6. Both are backed by a comparable volume of ratings — 57 and 21 respectively. Written reviews point the same way: 65% of Second Nature's written reviews are positive against 4% of Better UK's.

UpkeepUpdate frequency

Second Nature ships an update every 2 days, Better UK every 6 weeks. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Second Nature versus Better UK: the parameters behind the verdict, then further details
ParameterSecond NatureBetter UK
PriceFreeFree
Rating4.3 (57 ratings) — better1.6 (21 ratings)
Positive reviews65.0% of reviews — better3.5% of reviews
Number of ratings57 — better21
Update frequencyEvery 2 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.415.0 — better
Further details — not scored
Size127 MB106 MB
Age rating17+4+
DeveloperSecond Nature Health LtdGreenwich Leisure Limited

Customer experience

Second Nature

All ratings57 ratings
Positive84.2%
Neutral0.0%
Negative15.8%
Written reviews103 reviews
Positive65.0%
Neutral8.7%
Negative26.2%

Better UK

All ratings21 ratings
Positive9.5%
Neutral4.8%
Negative85.7%
Written reviews313 reviews
Positive3.5%
Neutral2.9%
Negative93.6%

Bugs and requests

Second Nature

Not enough reviews yet to summarise bugs or requests.

Better UK

Reported bugs

5 issues
  • Bookings not syncing
  • App not recognizing memberships
  • Frequent service errors
  • Unreliable QR code scanning
  • Inconsistent behavior across devices

Requested features

6 requests
  • Ability to book for multiple users
  • Saved payment details
  • Integration with Apple Pay/Wallet
  • Better notification system
  • Improved account management
Show 1 more
  • Streamlined booking process

In-app purchases

None

Second Nature

No in-app purchases

None

Better UK

No in-app purchases

Questions

Is Second Nature free?
Second Nature is free to download, with no in-app purchases.
Is Better UK free?
Better UK is free to download, with no in-app purchases.
Which has better reviews, Second Nature or Better UK?
Second Nature is rated higher. Second Nature averages 4.3 out of 5 from 57 ratings, while Better UK averages 1.6 from 21 ratings.
Do Second Nature or Better UK have ads?
Neither Second Nature nor Better UK shows ads.
Which is updated more often, Second Nature or Better UK?
Second Nature ships an update every 2 days, and Better UK every 6 weeks. Most recently, Second Nature was updated on October 24, 2026 and Better UK on October 25, 2026.

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