Comparison

ReactionX vs KINVENT

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

Head to head
About

ReactionX

Enhance your athletic performance with this app, designed to be used with specialized training lamps. Improve your speed and reaction times through professional sports training exercises.

Highlights
  • Professional sports training
  • Speed improvement
  • Reaction time enhancement
  • Compatible with training lamps hardware
Features
Read full description

Must used with Reaction training lamps hardware. Help you on professional sport training. Improve your speed and reaction.

About

KINVENT

This app empowers health and sports professionals to precisely track motion, force, and recovery. It offers real-time biofeedback, over 100 guided protocols, and personalized patient profiles with comprehensive reporting. Works offline with local data storage and optional cloud syncing.

Highlights
  • Real-time biofeedback with visualizations
  • Over 100 guided protocols
  • Personalized patient profiles
  • Offline assessment capability
  • Local and cloud data storage
  • Multilingual support
Features
Read full description

Ideal for physiotherapists and sports professionals to track motion, force & recovery The KINVENT app is fully compatible with our complete lineup of biomechanical assessment tools, empowering rehab and performance professionals with precision data across muscle activity, force, balance, and movement. Key Features: • Real-time biofeedback with clear visualizations • Over 100 guided protocols and rehab exercises • Personalized patient profiles and PDF/CSV reporting • Works offline—no internet required for assessments • Local data storage + cloud syncing when online • Multilingual support for international users Muscle Activation & Biofeedback • K-Myo – Wireless EMG sensor for real-time tracking of muscle engagement and neuromuscular control Strength Testing & Dynamometry • K-Grip – Hand dynamometer for grip strength and endurance • K-Push – Push dynamometer for isometric strength assessments • K-Pull – Pull dynamometer ideal for joint-specific strength testing • K-Bubble – Pressure dynamometer for small muscle groups and breathing exercises Force Plates & Biomechanical Analysis • K-Force Plates – Portable plates for jump testing, balance, and postural control • K-Deltas – Dual plate system for limb symmetry and dynamic force profiling • 3D Deltas – High-precision 3D force plates for elite-level multidirectional force analysis Mobility & Motion Tracking • K-Move – Inertial motion sensor for measuring range of motion (ROM), joint mobility, and movement quality • K-Power – Assess and track vertical and horizontal movements seamlessly Use Cases: • Strength and mobility assessment in clinical practice or in sports • Post-op rehab (ACL, shoulder, etc.) • Return-to-play decision-making • Performance screening in sports teams • Balance training and neuromuscular re-education Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ReactionX3 screens
KINVENT4 screens

Verdict

The call

The clearest difference is in-app purchases: ReactionX at none against KINVENT's 8. ReactionX also leads on review sentiment (100% vs 80%). On price, rating, ratings volume and update cadence 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

Both are free to download. KINVENT sells 8 in-app purchases, starting at $34.99 per month. ReactionX asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ReactionX against 5.0 for KINVENT. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews are what separate them: 100% of ReactionX's written reviews are positive against 80% of KINVENT's.

UpkeepUpdate frequency

ReactionX ships an update every 6 weeks, KINVENT every 3 weeks. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 7 level
ReactionX versus KINVENT: the parameters behind the verdict, then further details
ParameterReactionXKINVENT
PriceFreeFree
Rating5.0 (3 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings33
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.1 — better15.6
Further details — not scored
Size34 MB475 MB
Age rating4++4
Developer学斌 赵KINVENT BIOMECANIQUE

Customer experience

ReactionX

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KINVENT

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

ReactionX

No in-app purchases

8 purchases

KINVENT

Subscriptions8
  • Kforce Pro Monthly Licence$34.991 Month
  • Starter Monthly License$34.991 Month
  • Premium Monthly License$59.991 Month
Show 5 more
  • Kforce Pro+ Monthly Licence$114.991 Month
  • Excellence Monthly Licence$114.991 Month
  • Kforce Pro Yearly Licence$349.991 Year
  • Starter Yearly License$349.991 Year
  • Premium Yearly Licence$599.991 Year

Questions

Is ReactionX free?
ReactionX is free to download, with no in-app purchases.
Is KINVENT free?
KINVENT is free to download, with in-app purchases available.
Which has better reviews, ReactionX or KINVENT?
ReactionX and KINVENT are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.
Do ReactionX or KINVENT have ads?
Neither ReactionX nor KINVENT shows ads.
Which is updated more often, ReactionX or KINVENT?
ReactionX ships an update every 6 weeks, and KINVENT every 3 weeks. Most recently, ReactionX was updated on October 30, 2026 and KINVENT on October 27, 2026.

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