Comparison

Stark Kettlebell vs Fortified Training

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

Head to head
About

Stark Kettlebell

This app provides a comprehensive guide to kettlebell training with HD video demonstrations of 51 exercises. Users can create custom workouts, track progress, and utilize built-in timers for various training styles like Tabata and HIIT. It integrates with Apple Health to log workouts and burned calories.

Highlights
  • 51 HD video exercises
  • Custom workout creation
  • Step-by-step workout guidance
  • Tabata, HIIT, and Circuit timers
  • Progress tracking and rewards
  • Targeted muscle group exercises
  • Apple Health integration
Features
Read full description

Optimise your results with Stark Kettlebell! - Be inspired by 51 exercises presented in sharp HD video. - Create your own personal workout. - Get a full body workout with exercises in all ranges of difficulty - While working out, follow the step by step workout-feature which take you through the workout using timers and your chosen specifics. - The timers support different workout types including Tabata, HIIT and Circuit training. - Challenge yourself, get rewards and keep track of your score. - Find exercises targeting specific muscle groups. Integration with Apple Health: Save burned calories and performed workouts. The Kettlebell is well known for the ability to build strength, endurance and explosiveness. Basic exercises like “Swing”, “Snatch” and “Get Up” activate all of your body to give you a great workout! Exercises are performed by the professional instructor, Andreas Lanker.

About

Fortified Training

Gain insights into your workouts to understand the reasoning behind your exercises. This app promotes better adherence to fitness routines and reinforces healthy habits beyond training sessions. It offers a comprehensive approach to fitness, focusing on the mental aspect of exercise.

Highlights
  • Workout programs
  • Exercise tutorials
  • Demonstrations
  • On-demand workouts
  • Community forum
Features
Read full description

Fortified provides training-related insights to people that want to learn how to take care of themselves in the context of a workout. Understanding why you do what you do during your workout increases adherence to exercise and reinforces healthy lifestyle habits when you’re not training. Fortified isn’t just a workout… it’s the thought process behind why you train. -Workout programs -Tutorials -Demonstrations -On-demand workouts -Forum

Screenshots

Stark Kettlebell4 screens
Fortified Training4 screens

Verdict

The call

The clearest difference is price: Fortified Training at Free against Stark Kettlebell's $4.99. Fortified Training also leads on rating (5.0 vs 4.7). Stark Kettlebell's advantage is ratings volume (544 vs 3) and update cadence (every 3 months vs every 7 months). On ads, in-app purchases, monetization model 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

Fortified Training is free to download; Stark Kettlebell costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Fortified Training holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Stark Kettlebell has 544 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Stark Kettlebell ships an update every 3 months, Fortified Training every 7 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 6 level
Stark Kettlebell versus Fortified Training: the parameters behind the verdict, then further details
ParameterStark KettlebellFortified Training
Price$4.99Free — better
Rating4.7 (544 ratings)5.0 (3 ratings) — better
Positive reviews84.4% of reviews—
Number of ratings544 — better3
Update frequencyEvery 3 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#79 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size57 MB121 MB
Age rating4+12+
DeveloperPostra ABSutra Fitness, Inc.

Customer experience

Stark Kettlebell

All ratings544 ratings
Positive93.4%
Neutral2.9%
Negative3.7%
Written reviews179 reviews
Positive84.4%
Neutral3.9%
Negative11.7%

Fortified Training

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Stark Kettlebell

Reported bugs

2 issues
  • Videos not downloading properly
  • App crashing on launch for some users

Requested features

5 requests
  • More pre-built workout options
  • Ability to rearrange custom workouts
  • Audio cues for exercises and timing
  • Improved workout customization options
  • Integration with music/fitness apps

Fortified Training

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Stark Kettlebell

No in-app purchases

None

Fortified Training

No in-app purchases

Questions

Is Stark Kettlebell free?
Stark Kettlebell costs $4.99, with no in-app purchases.
Is Fortified Training free?
Fortified Training is free to download, with no in-app purchases.
Which has better reviews, Stark Kettlebell or Fortified Training?
Fortified Training is rated higher. Stark Kettlebell averages 4.7 out of 5 from 544 ratings, while Fortified Training averages 5.0 from 3 ratings.
Do Stark Kettlebell or Fortified Training have ads?
Neither Stark Kettlebell nor Fortified Training shows ads.
Which is updated more often, Stark Kettlebell or Fortified Training?
Stark Kettlebell ships an update every 3 months, and Fortified Training every 7 months. Most recently, Stark Kettlebell was updated on October 26, 2026 and Fortified Training on October 24, 2026.

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