Comparison

Second Nature vs YOU FOREVER

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

YOU FOREVER

Features
Read full description

You Forever – Your Complete Health & Fitness Hub by Lucas Sheehan You Forever is your all-in-one app for achieving lasting results in fitness, health, and lifestyle. Exclusively for You Forever members, the app gives you everything you need to stay on track, wherever you are. With You Forever, you can: Access personalised training plans tailored to your goals Track your workouts and progress with ease Stay connected with your coach for guidance and support Log nutrition, habits, and lifestyle choices to keep accountable Sync with your schedule so training fits seamlessly into your life Whether you’re at home, in the gym, or travelling, You Forever helps you stay consistent and focused. This is more than just training—it’s building a healthier, stronger, more confident version of yourself for life. Your journey. Your results. You Forever. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy

Screenshots

Second Nature4 screens
YOU FOREVER3 screens

Verdict

The call

The clearest difference is update cadence: Second Nature at every 2 days against YOU FOREVER's every 3 months. On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Second Nature ships an update every 2 days, YOU FOREVER every 3 months. The most recent releases landed on October 26, 2026 and October 3, 2026 respectively.

Scorecard1 real difference · 9 level
Second Nature versus YOU FOREVER: the parameters behind the verdict, then further details
ParameterSecond NatureYOU FOREVER
PriceFreeFree
Rating4.3 (57 ratings) — better—
Positive reviews65.0% of reviews—
Number of ratings57 — better—
Update frequencyEvery 2 days — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size127 MB57 MB
Age rating17+17+
DeveloperSecond Nature Health Ltdlucas sheehan

In-app purchases

None

Second Nature

No in-app purchases

None

YOU FOREVER

No in-app purchases

Questions

Is Second Nature free?
Second Nature is free to download, with no in-app purchases.
Is YOU FOREVER free?
YOU FOREVER is free to download, with no in-app purchases.
Do Second Nature or YOU FOREVER have ads?
Neither Second Nature nor YOU FOREVER shows ads.
Which is updated more often, Second Nature or YOU FOREVER?
Second Nature ships an update every 2 days, and YOU FOREVER every 3 months. Most recently, Second Nature was updated on October 26, 2026 and YOU FOREVER on October 3, 2026.

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