Katalyst vs Just Mind
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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
Just Mind
This app provides a private space to track your mental wellbeing between therapy sessions. It offers journaling prompts, daily check-ins, and access to mental health articles. Securely connect to your therapist's portal for messages and billing.
- Private journaling with daily prompts
- Daily wellbeing check-ins
- Track wellbeing trends over time
- Access mental health articles
- Secure therapist portal access
- Crisis support resources
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Just Mind is your private companion between therapy sessions at Just Mind Counseling in Austin, Texas. A calm, simple space to notice how you're doing, reflect on what's coming up, and stay connected to your care — all on your own phone. WHAT YOU CAN DO • Journal — Write about what's on your mind with a gentle daily prompt, and look back on past entries to see how things have shifted over time. • Wellbeing Check-In — Answer four short questions about how different parts of your life are going. See your score, follow your trends over 30, 90, and 180 days, and bring the results to your next session. • Read the blog — Browse mental-health articles from the Just Mind team on anxiety, relationships, parenting, self-growth, and more. • Stay connected — Reach your therapist's secure portal for messages, invoices, and billing; keep your next appointment in view; and find crisis support any time. YOUR PRIVACY COMES FIRST Everything you write — every journal entry and check-in — is stored only on your device. Nothing is uploaded to a server, synced to the cloud, or shared with Just Mind Counseling or anyone else. No analytics, no tracking. Lock the app with Face ID, Touch ID, or your passcode, and clear all your data whenever you like. A COMPANION, NOT A REPLACEMENT Just Mind supports the work you do with your therapist — it doesn't replace professional care, and it isn't a crisis service. If you're in crisis, the app puts the 988 Suicide & Crisis Lifeline and other support one tap away. The Journal, Check-In, and Blog are open to everyone. Messaging and billing require a Just Mind client portal login.
Screenshots
Verdict
The clearest difference is rating: Just Mind at 5.0 against Katalyst's 4.6. Just Mind also leads on monetization model (free vs free with in-app purchases) and review sentiment (100% vs 81%). Katalyst's advantage is ratings volume (59 vs 2) and device support (3 vs 1). On price, update cadence, ads and in-app purchases 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.
Just Mind holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Katalyst has 59 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 81% of Katalyst's written reviews are positive against 100% of Just Mind's.
Katalyst ships an update every 3 weeks, Just Mind monthly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Katalyst | Just Mind |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (59 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 80.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 59 — better | 2 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 155 MB | 2 MB |
| Age rating | 4+ | 12+ |
| Developer | Katalyst Interactive Inc. | Just Mind PLLC |
Customer experience
Katalyst
Just Mind
In-app purchases
Katalyst
No in-app purchases
Just Mind
No in-app purchases









