Comparison

TRX FORCE vs Stark Stretch

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

Head to head
About

TRX FORCE

This app offers an enhanced digital version of a 12-week military-grade conditioning program. It includes an extensive exercise video library, randomized workouts, benchmark tests, and adjustable timers to maximize training effectiveness for users of all fitness levels.

Highlights
  • 12-week tactical conditioning program
  • Indexed exercise video library
  • Randomized workout selector
  • Benchmark tests
  • Optimized countdown timers
  • Agility and conditioning drills
  • Four-week pull-up program
Features
Read full description

This is the ultra-enhanced digital version of the comprehensive, 12-week TRX Tactical Conditioning Program used in all branches of the US Military and by athletes of all levels to get the most out of their training. Featuring an extensive, indexed exercise video library, a randomized workout selector, benchmark tests, optimized countdown timers and agility and conditioning drills, the TRX FORCE Super App will push you beyond your limits to get you fit for whatever mission you face in your line of duty—or life. The Super App now features an additional four-week pull-up program and integrated timers that adjust to the volume of your music, so you’ll never lose track of your workout. The TRX FORCE Super App contains the most comprehensive and effective tactical strength and conditioning program ever created. To develop the TRX FORCE Super App, we leveraged learnings from our direct work with thousands of service members in every branch of service and the most recent, cutting-edge science and research published on the application of functional training for tactical athletes. The TRX Tactical Training Program at the Super App’s core provides a robust training solution for anyone at any fitness level ready to take on a serious challenge and experience serious results. Please consult with a physician before starting this or any exercise program. Your participation is at your own risk. Your use of this mobile application shall be considered your acceptance of Fitness Anywhere LLC’s Terms of Use, which can be seen here: http://www.trxtraining.com/terms-of-use

About

Stark Stretch

Access a library of 83 HD video exercises for a full-body workout. Create personalized routines with timers for Tabata, HIIT, and circuit training. Track progress by saving workouts and burned calories to Apple Health.

Highlights
  • 83 HD exercise videos
  • Personalized workout creation
  • Full body workouts
  • Step-by-step workout guidance
  • Tabata, HIIT, Circuit timers
  • Muscle group targeting
  • Apple Health integration
Features
Read full description

Optimise your results with Stark Stretch! - Be inspired by 83 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, Denice Lundevall

Screenshots

TRX FORCE3 screens
Stark Stretch4 screens

Verdict

The call

The clearest difference is price: TRX FORCE at Free against Stark Stretch's $1.99. TRX FORCE also leads on ratings volume (771 vs 168) and iOS requirement (10.0 vs 12.0). Stark Stretch's advantage is in-app purchases (none vs 7). On rating, update cadence, ads 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

TRX FORCE is free to download; Stark Stretch costs $1.99 up front. TRX FORCE sells 7 one-off in-app purchases. Stark Stretch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for TRX FORCE against 4.6 for Stark Stretch. Both are backed by a comparable volume of ratings — 771 and 168 respectively.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
TRX FORCE versus Stark Stretch: the parameters behind the verdict, then further details
ParameterTRX FORCEStark Stretch
PriceFree — better$1.99
Rating4.5 (771 ratings)4.6 (168 ratings) — better
Positive reviews—70.7% of reviews
Number of ratings771 — better168
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS10.0 — better12.0
Further details — not scored
Size295 MB18 MB
Age rating17+4+
DeveloperTRXPostra AB

Customer experience

TRX FORCE

All ratings771 ratings
Positive87.5%
Neutral4.7%
Negative7.8%

Stark Stretch

All ratings168 ratings
Positive91.1%
Neutral3.0%
Negative6.0%
Written reviews140 reviews
Positive70.7%
Neutral7.9%
Negative21.4%

User reviews

TRX FORCE

From 771 App Store ratings

What we love

  • 🚀 Great workouts
  • 👍 Clear instructions and videos
  • ⏱️ Integrated timer
  • 💪 Effective for building strength and fitness

Room to improve

  • 💰 Expensive app and in-app purchases
  • 🔀 Clunky navigation and lack of automation
  • 🐛 Bugs, crashes, and performance issues
  • 📱 Not optimized for larger screens
  • 🔇 Lack of audio/sound features

Stark Stretch

From 168 App Store ratings

What we love

  • 👍 Customizable routines
  • 👍 Wide selection of stretches
  • 👍 Simple and easy to use
  • 👍 Good for beginners
  • 👍 Effective for flexibility

Room to improve

  • 👎 Lack of detailed instructions
  • 👎 Videos/images are static or unclear
  • 👎 Unilateral exercises not automatically handled
  • 👎 Limited exercise selection (for some)
  • 👎 Paid app with issues

Bugs and requests

TRX FORCE

Reported bugs

4 issues
  • Inconsistent exercise timers and counters
  • Videos failing to load or play properly
  • Syncing issues across multiple devices
  • Compatibility problems with newer iOS versions

Requested features

5 requests
  • Ability to track progress and results
  • More workout programs and exercise variety
  • Seamless integration with other fitness apps and devices
  • Offline mode or downloadable content
  • Customizable timer and workout settings

Stark Stretch

Reported bugs

7 issues
  • Videos won't download
  • App crashes or won't work
  • Server issues for downloads
  • Analysis mode transmits data without consent
  • Timer/rest period settings are cumbersome
Show 2 more
  • Voice countdown stopped working
  • Program creation doesn't display exercises

Requested features

13 requests
  • Add more detailed instructions (text or voice)
  • Improve video clarity and motion
  • Automatic handling of left/right side exercises
  • Expand exercise library
  • Add option to add custom stretches
Show 8 more
  • Add voice countdown/timer warnings
  • Include breathing guidance
  • Add alternative exercises for injuries
  • Add yoga edition
  • Add soothing music
  • More pre-made workout programs
  • Highlight muscles being worked
  • Add animation showing where to feel the stretch

In-app purchases

7 purchases

TRX FORCE

One-time7
  • TRX FORCE Phase 1$15.99
  • TRX FORCE Phase 2$15.99
  • TRX FORCE Phase 3$15.99
Show 4 more
  • TRX FORCE Pull-up Program$15.99
  • TRX FORCE Exercise Library$19.99
  • TRX FORCE All Content$39.99
  • TRX FORCE TCP / Pull Up Bundle$49.99
None

Stark Stretch

No in-app purchases

Questions

Is TRX FORCE free?
TRX FORCE is free to download, with in-app purchases available.
Is Stark Stretch free?
Stark Stretch costs $1.99, with no in-app purchases.
Which has better reviews, TRX FORCE or Stark Stretch?
Stark Stretch is rated higher. TRX FORCE averages 4.5 out of 5 from 771 ratings, while Stark Stretch averages 4.6 from 168 ratings.
Do TRX FORCE or Stark Stretch have ads?
Neither TRX FORCE nor Stark Stretch shows ads.
Which is updated more often, TRX FORCE or Stark Stretch?
TRX FORCE ships an update every 3 months, and Stark Stretch every 3 months. Most recently, TRX FORCE was updated on October 10, 2026 and Stark Stretch on October 13, 2026.

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