Comparison

Stark Gym Ball vs Stability Ball Workout Guide

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

Head to head
About

Stark Gym Ball

This app offers a comprehensive guide to gym ball exercises with HD video demonstrations. Users can create personalized workouts, target specific muscle groups, and follow guided routines with built-in timers for various training styles like Tabata and HIIT. It also integrates with Apple Health to track progress.

Highlights
  • 28 HD video exercises
  • Personalized workout creation
  • Full body and muscle group targeting
  • Step-by-step workout guidance
  • Tabata, HIIT, and Circuit timers
  • Apple Health integration
Features
Read full description

Optimise your results with Stark Gym Ball! - Be inspired by 28 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. - Find exercises targeting specific muscle groups. Integration with Apple Health: Save burned calories and performed workouts. Exercises are performed by the professional instructors Benjamin Sällström and Jenny Ahlin.

About

Stability Ball Workout Guide

This app guides users through exercises using a stability ball to improve balance and core strength. It offers a variety of simple, easy-to-follow routines suitable for beginners and advanced users looking to add a new challenge to their fitness regimen.

Highlights
  • Stability ball exercises
  • Improve balance and core strength
  • Suitable for beginners
  • Challenging for advanced users
  • Easy-to-follow routines
  • Strengthen and stretch body
Features
Read full description

The gym ball is so versatile it can be used to help someone who is just starting out in the gym as a beginner. For the more advanced sporters it can help by adding an extra level of instability, increasing the challenge of their workouts in a new and potentially unfamiliar way. The great thing about working on balance and stability is that you don't have to do advanced or intense exercises to improve. In fact, one simple tool, an exercise ball, can help you work all of these areas with a variety of simple, easy to follow exercises. Exercise balls -- also known as physioballs, Swiss balls, or fit balls -- are large, vinyl balls you can use to strengthen and stretch your body, improving core stability and balance. When used correctly, these simple spheres can help build a stronger, leaner and more resilient body. The exercises in this app help work on all areas of your body while allowing you to get familiar with the unstable surface of the ball. This is perfect as a beginner if you haven't had much experience using an exercise ball and want a gentle way to work your body.

Screenshots

Stark Gym Ball4 screens
Stability Ball Workout Guide4 screens

Verdict

The call

The clearest difference is review sentiment: Stark Gym Ball at 80% against Stability Ball Workout Guide's 0%. Stark Gym Ball also leads on rating (4.6 vs 2.0) and in-app purchases (none vs 8). Stability Ball Workout Guide's advantage is price (Free vs $4.99) and iOS requirement (13.0 vs 15.1). On 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

Stability Ball Workout Guide is free to download; Stark Gym Ball costs $4.99 up front. Stability Ball Workout Guide sells 8 one-off in-app purchases. Stark Gym Ball asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Stark Gym Ball holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Stark Gym Ball has 57 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Stark Gym Ball's written reviews are positive against 0% of Stability Ball Workout Guide's.

UpkeepUpdate frequency

Stark Gym Ball ships an update every 2 months, Stability Ball Workout Guide every 52 months. The most recent releases landed on November 10, 2026 and November 3, 2026 respectively.

Scorecard9 real differences · 1 level
Stark Gym Ball versus Stability Ball Workout Guide: the parameters behind the verdict, then further details
ParameterStark Gym BallStability Ball Workout Guide
Price$4.99Free — better
Rating4.6 (57 ratings) — better2.0 (1 ratings)
Positive reviews80.5% of reviews — better0.0% of reviews
Number of ratings57 — better1
Update frequencyEvery 2 months — betterEvery 52 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size57 MB29 MB
Age rating4+4+
DeveloperPostra ABSamantha Roobol

Customer experience

Stark Gym Ball

All ratings57 ratings
Positive91.2%
Neutral3.5%
Negative5.3%
Written reviews41 reviews
Positive80.5%
Neutral2.4%
Negative17.1%

Stability Ball Workout Guide

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

None

Stark Gym Ball

No in-app purchases

8 purchases

Stability Ball Workout Guide

One-time8
  • Remove ads$0.99
  • Full Body Workout Plan$1.99
  • Exercises for beginners$1.99
Show 5 more
  • Abs Workout Plan$1.99
  • Butt, Thighs and Legs$1.99
  • Lower Back Pain Relief$1.99
  • 60 Day Challenge$1.99
  • Full Bundle$4.99

Questions

Is Stark Gym Ball free?
Stark Gym Ball costs $4.99, with no in-app purchases.
Is Stability Ball Workout Guide free?
Stability Ball Workout Guide is free to download, with in-app purchases available.
Which has better reviews, Stark Gym Ball or Stability Ball Workout Guide?
Stark Gym Ball is rated higher. Stark Gym Ball averages 4.6 out of 5 from 57 ratings, while Stability Ball Workout Guide averages 2.0 from 1 ratings.
Do Stark Gym Ball or Stability Ball Workout Guide have ads?
Stability Ball Workout Guide shows ads; Stark Gym Ball does not.
Which is updated more often, Stark Gym Ball or Stability Ball Workout Guide?
Stark Gym Ball ships an update every 2 months, and Stability Ball Workout Guide every 52 months. Most recently, Stark Gym Ball was updated on November 10, 2026 and Stability Ball Workout Guide on November 3, 2026.

Other comparisons