Comparison

Katalyst vs HIT BLN | GYM

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

HIT BLN | GYM

Features
Read full description

Download the new HIT BLN | GYM App to book services such as Personal Training, Classes, Massage, Nutrition Consulting, and Coaching. • From this mobile app, you can view class schedules, sign up for classes, and check the studio’s location. • Discover Personal Training at its best. • Get the chance to book last-minute offers. • Receive tailored training programs. • Join our community for upcoming challenges. Optimize your time and maximize the convenience of signing up for classes from your device! Download this app today!

Screenshots

Katalyst4 screens
HIT BLN | GYM3 screens

Verdict

The call

The clearest difference is update cadence: Katalyst at every 3 weeks against HIT BLN | GYM's every 3 months. On price, ads, in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Katalyst ships an update every 3 weeks, HIT BLN | GYM every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard1 real difference · 9 level
Katalyst versus HIT BLN | GYM: the parameters behind the verdict, then further details
ParameterKatalystHIT BLN | GYM
PriceFreeFree
Rating4.6 (59 ratings) — better—
Positive reviews80.6% of reviews—
Number of ratings59 — better—
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size155 MB194 MB
Age rating4+4+
DeveloperKatalyst Interactive Inc.HIT BLN

In-app purchases

None

Katalyst

No in-app purchases

None

HIT BLN | GYM

No in-app purchases

Questions

Is Katalyst free?
Katalyst is free to download, with no in-app purchases.
Is HIT BLN | GYM free?
HIT BLN | GYM is free to download, with no in-app purchases.
Do Katalyst or HIT BLN | GYM have ads?
Neither Katalyst nor HIT BLN | GYM shows ads.
Which is updated more often, Katalyst or HIT BLN | GYM?
Katalyst ships an update every 3 weeks, and HIT BLN | GYM every 3 months. Most recently, Katalyst was updated on November 3, 2026 and HIT BLN | GYM on November 4, 2026.

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