Comparison

Katalyst vs Milo Link

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 WORLD’S MOST EFFICIENT WORKOUT The Katalyst App is the companion to the Katalyst Training System, a revolutionary new workout that uses Electro Muscle Stimulation (EMS) to engage all of your muscles simultaneously. Our patented training system and wearable suit, controlled by the Katalyst App, delivers specially-tuned, low-frequency impulses to each of your major muscle groups. These impulses imitate the brain signals that cause your muscles to contract and, when combined with simple, bodyweight movements, multiply the results of any exercise. The result is a complete, full-body workout that engages up to 90% of your muscle fibers in just 20 minutes, even hard-to-reach back stabilizers. And because Katalyst does the heavy lifting for you, there is zero load added to your joints. HOW TO JOIN & ACCESS THE KATALYST APP New to Katalyst? Download the app and get a sneak peek of what your next fitness journey could look like. Get your training system at katalyst.fit. Already have a Katalyst System? The Katalyst App is free to download. Simply create your profile or log in, and enjoy unlimited access. WORKOUTS FOR ALL FITNESS LEVELS Designed to fit your life and help you reach your goals, our professional trainers have created workouts from beginner to superhuman, and for all fitness levels in between. Get access to our full library of strength, power, cardio, and recovery workouts: Strength: Get a complete, full-body strength workout for more results in less time. Power: Engage your fast-twitch muscle fibers with intense, explosive strength classes. Cardio: Discover guided cardio workouts, or incorporate “freestyle” mode into your own cardio routine. Recovery: Active and passive recovery modes let you finish workouts like the pros. Massaging impulses help increase blood flow and nutrient distribution. AUTO-FOLLOW OUR INSTRUCTORS TO REACH YOUR GOALS Your Katalyst trainer adjusts the impulse intensity remotely throughout each workout, optimizing the effect of every session. All you have to do is focus on yourself. PUSH YOURSELF WHILE STAYING IN CONTROL Whether you want to push yourself harder, pull back slightly, or target a particular muscle group, our app allows you to precisely control every aspect of the workout. You are always in charge of how hard you train. WORKOUT ANYTIME, ANYWHERE Preload and store your workouts so you can train anywhere, even offline and without internet access. MEDIA FEATURES Airplay: Bring the instructor to life on your AirPlay-enabled device and use your iPad as a remote control! Spotify: The right sound to help you get in the zone - listen to our curated playlists or play your own favorite music. Download the Katalyst App and get your personal Full-Body EMS training any time, any place. Learn more at www.katalyst.com

About

Milo Link

This app serves as an official companion for a device, allowing users to update its software, customize settings like language, and access offline information. It ensures the device receives new features and performance improvements.

Highlights
  • Update device software
  • Customize device language
  • Access offline information
  • Learn about device features
  • Performance enhancements
Read full description

The official companion app for updating, customizing, and learning about your Milo! - Keep your Milo updated with new features and performance enhancements - Change Milo's language - Packed with information that's available offline, for access off-the-grid

Screenshots

Katalyst4 screens
Milo Link4 screens

Verdict

The call

The clearest difference is rating: Katalyst at 4.6 against Milo Link's 4.1. Katalyst also leads on review sentiment (81% vs 57%). Milo Link's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (12.0 vs 16.0). 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. Neither carries in-app purchases, so what you see is what you pay.

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 — 58 and 28 respectively. Written reviews point the same way: 81% of Katalyst's written reviews are positive against 57% of Milo Link's.

UpkeepUpdate frequency

Katalyst ships an update every 3 weeks, Milo Link monthly. The most recent releases landed on August 17, 2026 and September 6, 2026 respectively.

Scorecard4 real differences · 6 level
Katalyst versus Milo Link: the parameters behind the verdict, then further details
ParameterKatalystMilo Link
PriceFreeFree
Rating4.6 (58 ratings) — better4.1 (28 ratings)
Positive reviews80.6% of reviews — better57.1% of reviews
Number of ratings58 — better28
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size126 MB88 MB
Age rating4+4+
DeveloperKatalyst Interactive Inc.Loose Cannon Systems

Customer experience

Katalyst

All ratings58 ratings
Positive87.9%
Neutral3.4%
Negative8.6%
Written reviews31 reviews
Positive80.6%
Neutral6.5%
Negative12.9%

Milo Link

All ratings28 ratings
Positive75.0%
Neutral3.6%
Negative21.4%
Written reviews28 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

In-app purchases

None

Katalyst

No in-app purchases

None

Milo Link

No in-app purchases

Questions

Is Katalyst free?
Katalyst is free to download, with no in-app purchases.
Is Milo Link free?
Milo Link is free to download, with no in-app purchases.
Which has better reviews, Katalyst or Milo Link?
Katalyst is rated higher. Katalyst averages 4.6 out of 5 from 58 ratings, while Milo Link averages 4.1 from 28 ratings.
Do Katalyst or Milo Link have ads?
Neither Katalyst nor Milo Link shows ads.
Which is updated more often, Katalyst or Milo Link?
Katalyst ships an update every 3 weeks, and Milo Link monthly. Most recently, Katalyst was updated on August 17, 2026 and Milo Link on September 6, 2026.

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