Comparison

Katalyst vs X3 Force

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

Head to head
About

Katalyst

This app enhances a revolutionary workout system using Electro Muscle Stimulation (EMS) to engage all muscles simultaneously. It offers a full-body workout in just 20 minutes, with zero joint load. Access diverse workout programs and control intensity for personalized training.

Highlights
  • Electro Muscle Stimulation (EMS) training
  • Full-body engagement
  • 20-minute workouts
  • Zero joint load
  • Diverse workout library (strength, power, cardio, recovery)
  • Adjustable impulse intensity
  • Offline workout access
Features
Read full description

The Katalyst App is the companion to the Katalyst Suit, a wearable training system powered by advanced fitness technology. Together, they deliver a full-body workout no app can deliver on its own. A Katalyst Suit is required to train. The Katalyst Suit is an FDA-cleared, patented system that uses Electro Muscle Stimulation (EMS) to engage your major muscle groups at once. Low-frequency impulses mimic the signals your brain sends to contract a muscle. Pair them with simple bodyweight movements and every rep works harder, engaging up to 90% of your muscle fibers, including the deep back stabilizers most workouts miss, with zero load on your joints. ALREADY HAVE A KATALYST SUIT The app is free. Log in or create your profile for unlimited access. NEW TO KATALYST Explore the app and preview the workouts. Get your system at katalyst.com. WORKOUT MODES FOR EVERY LEVEL Programs built by professional trainers, from your first session to elite. - Strength: complete full-body strength in less time - Power: explosive sessions that recruit fast-twitch fibers - Cardio: lower-frequency sessions designed to build endurance, with quick recovery for daily use - Recovery: active and passive modes with massaging impulses to finish like the pros
- Freestyle mode: Choose a mode, set your intensity, and train your own way. TRAIN LED OR TRAIN SOLO In guided classes, your trainer adjusts intensity in real time so you can focus on the movement. Prefer your own pace? Run independent programs on your terms. ALWAYS IN CONTROL Dial intensity up or down, or target a specific muscle group, at any moment. How hard you train is always your call. TRAIN ANYWHERE Stream any workout on demand, or download sessions ahead of time for when you'll be offline. BUILT FOR YOUR SETUP - Apple Watch: adjust overall intensity, pause, and resume workouts right from your wrist
- AirPlay: put your instructor on the big screen and use your iPhone or iPad as the remote Get more strength and more out of life with Katalyst Suit workouts. 
katalyst.com

About

X3 Force

This application works with a smart resistance bar to track your exercise sessions in real time. It displays force data, quantifies workout quality, and helps you monitor progress to maximize results. Focus on improving your performance metrics for enhanced growth.

Highlights
  • Real-time force tracking
  • Quantify workout quality
  • Record workout duration
  • Monitor rep consistency
  • Calculate time under tension
  • View peak forces
Features
Read full description

We are pleased to announce the new Jaquish Biomedical X3® Force! X3 Force is an electronic, force tracking X3 bar that works with a smartphone application to display and record real time data about each exercise session. With X3 Force, you can get the benefits of a smart home gym, combined with the superior X3 variable resistance workout methodology. With every workout, you'll compete with your previous Total Force, a performance metric that uses real-time force data to calculate time under variable tension and overall workout quality. This way you will always know you're stimulating more growth. X3 Force combines force data with time and rep count information to calculate a Total Force exercise rating, that helps to summarize the difficulty and quality of each exercise session, so that you can more conveniently track your improvement. Focusing on improving your Total Force for each exercise is a great way to confirm that you are maximizing your results and adhering to X3 best practices. Maximize your results with data-driven workouts to help you push harder and perform better each time. With X3 Force you can: * View Peak Forces For Every Exercise * Quantify Overall Workout Quality * Record Workout Duration * Monitor Rep Consistency * Calculate Time Under Variable Tension Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Katalyst4 screens
X3 Force4 screens

Verdict

The call

The clearest difference is in-app purchases: Katalyst at none against X3 Force's 2. Katalyst also leads on rating (4.6 vs 4.1) and review sentiment (81% vs 70%). On price, ratings volume, update cadence and ads 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. X3 Force sells 2 in-app purchases, starting at $14.99 per month. Katalyst asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Katalyst holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 59 and 21 respectively. Written reviews point the same way: 81% of Katalyst's written reviews are positive against 70% of X3 Force's.

UpkeepUpdate frequency

Katalyst ships an update every 3 weeks, X3 Force fortnightly. Both last shipped on November 3, 2026.

Scorecard3 real differences · 7 level
Katalyst versus X3 Force: the parameters behind the verdict, then further details
ParameterKatalystX3 Force
PriceFreeFree
Rating4.6 (59 ratings) — better4.1 (21 ratings)
Positive reviews80.6% of reviews — better70.0% of reviews
Number of ratings59 — better21
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.015.0 — better
Further details — not scored
Size155 MB27 MB
Age rating4+4+
DeveloperKatalyst Interactive Inc.Jaquish Biomedical Corporation

Customer experience

Katalyst

All ratings59 ratings
Positive88.1%
Neutral3.4%
Negative8.5%
Written reviews31 reviews
Positive80.6%
Neutral6.5%
Negative12.9%

X3 Force

All ratings21 ratings
Positive81.0%
Neutral0.0%
Negative19.0%
Written reviews10 reviews
Positive70.0%
Neutral0.0%
Negative30.0%

In-app purchases

None

Katalyst

No in-app purchases

2 purchases

X3 Force

Subscriptions2
  • Monthly$14.991 Month
  • Yearly$164.991 Year

Questions

Is Katalyst free?
Katalyst is free to download, with no in-app purchases.
Is X3 Force free?
X3 Force is free to download, with in-app purchases available.
Which has better reviews, Katalyst or X3 Force?
Katalyst is rated higher. Katalyst averages 4.6 out of 5 from 59 ratings, while X3 Force averages 4.1 from 21 ratings.
Do Katalyst or X3 Force have ads?
Neither Katalyst nor X3 Force shows ads.
Which is updated more often, Katalyst or X3 Force?
Katalyst ships an update every 3 weeks, and X3 Force fortnightly. Most recently, Katalyst was updated on November 3, 2026 and X3 Force on November 3, 2026.

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