Comparison

GTFU Coaching vs Built By Karl

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

Head to head
About

GTFU Coaching

Features
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GTFU Coaching takes care of absolutely everything regarding your nutrition, training and lifestyle habits. You will work 1:1 with your coach in achieving your goals. All the tools you require are now located within the app. It's time to unleash your full potential! *Requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

About

Built By Karl

Features
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Built By Karl is a fitness and lifestyle coaching app designed to help busy men build strength, lose body fat, and create sustainable habits alongside work and family life. The app provides structured training programs, simple nutrition guidance, and daily accountability tools to support long-term consistency. Users can follow workouts tailored to their goals, track progress over time, and stay organised with habit tracking and check-ins. Key features include: Personalised workout plans with exercise demonstrations Progress tracking for workouts, body metrics, and habits Nutrition guidance and food tracking support In-app messaging for communication and feedback Goal setting and reminders to support consistency Built By Karl focuses on practical routines that fit around real life, helping users stay consistent without extreme diets or complicated systems. Everything is delivered in one place to make fitness simple, structured, and manageable. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy Medical Disclaimer: This app does not provide medical advice, diagnoses, or treatment. The information and guidance provided within the app are for general fitness and wellbeing purposes only. Always seek the advice of your physician or other qualified healthcare provider before starting any exercise program, changing your nutrition, or making decisions regarding your health.

Screenshots

GTFU Coaching3 screens
Built By Karl3 screens

Verdict

The call

The clearest difference is in-app purchases: GTFU Coaching at none against Built By Karl's 1. GTFU Coaching also leads on update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Built By Karl sells 1 in-app purchase, starting at $299.99 per month. GTFU Coaching asks for nothing beyond the download.

UpkeepUpdate frequency

GTFU Coaching ships an update every 3 weeks, Built By Karl every 3 months. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard2 real differences ยท 4 level
GTFU Coaching versus Built By Karl: the parameters behind the verdict, then further details
ParameterGTFU CoachingBuilt By Karl
PriceFreeFree
Update frequencyEvery 3 weeks โ€” betterEvery 3 months
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details โ€” not scored
Size53 MB56 MB
Age rating17+17+
DeveloperMatthew BorgKarl Jardine

In-app purchases

None

GTFU Coaching

No in-app purchases

1 purchases

Built By Karl

Subscriptions1
  • Monthly 1-1$299.991 Month

Questions

Is GTFU Coaching free?
GTFU Coaching is free to download, with no in-app purchases.
Is Built By Karl free?
Built By Karl is free to download, with in-app purchases available.
Do GTFU Coaching or Built By Karl have ads?
Neither GTFU Coaching nor Built By Karl shows ads.
Which is updated more often, GTFU Coaching or Built By Karl?
GTFU Coaching ships an update every 3 weeks, and Built By Karl every 3 months. Most recently, GTFU Coaching was updated on November 7, 2026 and Built By Karl on November 5, 2026.

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