Kokoon vs Katalyst
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kokoon
This app offers a personalized sleep audio experience tailored to your needs and habits. It features a library of original audio content, including soundscapes and spoken word, and allows you to integrate audio from other apps. Track your sleep data to understand how your habits impact your rest.
- Personalized sleep audio
- Original audio content library
- Configurable audio for sleep stages
- Integrates with other audio apps
- Sleep data tracking and insights
Read full descriptionHide full description
Delivers a personalised sleep audio experience, tending to your specific needs and sleep habits. Original content library - includes different types of audio tracks for sleep: coloured noise, soundscapes and music as well as a variety of spoken word audio to deepen your understanding of your sleep or practise different relaxation techniques. Configure audio - adapt to your sleeping stage: pause your sounds or fade audio out into coloured noise to protect your sleep from disturbance. Use audio from any audio app - e.g. Audible, Spotify, Podcasts etc. It works with whatever you like to listen to when relaxing. Data tracking and insights - build an understanding of your sleep, and see how your audio usage and behaviours affect your sleep over time.
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.
- 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
Read full descriptionHide 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
Screenshots
Verdict
The clearest difference is review sentiment: Katalyst at 81% against Kokoon's 15%. Katalyst also leads on rating (4.6 vs 3.8) and device support (3 vs 1). Kokoon's advantage is monetization model (free vs free with in-app purchases). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Katalyst holds the better App Store score, 4.6 against 3.8. Both are backed by a comparable volume of ratings — 140 and 58 respectively. Written reviews point the same way: 15% of Kokoon's written reviews are positive against 81% of Katalyst's.
Kokoon ships an update every 2 weeks, Katalyst every 3 weeks. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.
| Parameter | Kokoon | Katalyst |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (140 ratings) | 4.6 (58 ratings) — better |
| Positive reviews | 14.5% of reviews | 80.6% of reviews — better |
| Number of ratings | 140 — better | 58 |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 71 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | Kokoon Technology Ltd | Katalyst Interactive Inc. |
Customer experience
Kokoon
Katalyst
Bugs and requests
Kokoon
Reported bugs
5 issues- App crashes and freezes
- Sync and login issues
- Inconsistent audio playback
- Inaccurate sleep data
- Firmware update problems
Requested features
6 requests- Offline audio playback
- Integration with Apple Health
- More customization options
- Improved sleep tracking and data visualization
- Better audio library and content
Show 1 moreShow fewer
- Automatic fade out and noise masking
Katalyst
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kokoon
No in-app purchases
Katalyst
No in-app purchases









