Comparison

AR Performance vs Built By Karl

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

Head to head
About

AR Performance

Features
Read full description

A personalised, holistic approach to achieving your fitness goals in today’s busy world. * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

About

Built By Karl

Features
Read full description

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

AR Performance3 screens
Built By Karl3 screens

Verdict

The call

The clearest difference is update cadence: AR Performance at monthly against Built By Karl's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. AR Performance sells 1 in-app purchase, starting at $249.99 per month and Built By Karl sells 1 in-app purchase, starting at $299.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AR Performance ships an update monthly, Built By Karl every 3 months. The most recent releases landed on October 5, 2026 and October 9, 2026 respectively.

Scorecard1 real difference Β· 5 level
AR Performance versus Built By Karl: the parameters behind the verdict, then further details
ParameterAR PerformanceBuilt By Karl
PriceFreeFree
Update frequencyMonthly β€” betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details β€” not scored
Size50 MB56 MB
Age rating17+17+
DeveloperAndrius RudaviciusKarl Jardine

In-app purchases

1 purchases

AR Performance

Subscriptions1
  • Online Coaching$249.991 Month
1 purchases

Built By Karl

Subscriptions1
  • Monthly 1-1$299.991 Month

Questions

Is AR Performance free?
AR Performance is free to download, with in-app purchases available.
Is Built By Karl free?
Built By Karl is free to download, with in-app purchases available.
Do AR Performance or Built By Karl have ads?
Neither AR Performance nor Built By Karl shows ads.
Which is updated more often, AR Performance or Built By Karl?
AR Performance ships an update monthly, and Built By Karl every 3 months. Most recently, AR Performance was updated on October 5, 2026 and Built By Karl on October 9, 2026.

Other comparisons