Comparison

Core Meditation vs TheStack Baseball

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

Head to head
About

Core Meditation

Experience immersive meditation with guided vibrations, audio, and lighting. Track your progress with stress-level measurements and biometric data. Access a library of classes and personalized feedback to build inner strength.

Highlights
  • Guided meditation with dynamic vibrations
  • Breath training techniques
  • Stress-level and biometric tracking
  • Progress measurement (Calm, Focus, Training)
  • Meditation library with expert instructors
  • Ambient and musical soundscapes
  • Integration with Apple HealthKit
Read full description

Core helps you build your inner strength with the most immersive meditation experience out there. This is meditation you can feel, guided by dynamic vibrations, audio and lighting. Connect your Core Meditation Trainer with the app, drop in, and go. Together with the Trainer, the Core app will track your personal progress using stress-level measurements and other biometric data insights. DIVE INTO OUR MEDITATION LIBRARY - Learn new Breath Training techniques, then practice them on your own with Core's guiding vibrations. - Unwind with longer guided classes, or jump into a short 3-minute session — whatever fits your schedule. - Meditations guided by our expert instructors cover a variety of topics, geared towards all experience levels. - Pick a vibration pattern, choose a duration, and drop into one of Core's original ambient and musical soundscapes. Your Core Meditation Trainer pulses alongside your sessions. Depending on the type of meditation, the vibrations will guide you in learning Breath Training techniques, or serve as a gentle reminder to help focus your attention and anchor you in the present. MEASURE YOUR PROGRESS No more wondering whether meditation is actually working for you or not. With the Core Meditation Trainer connected to your app, you can see how meditation is directly affecting your body through several different metrics: - Training - Track your consistency over time. Making meditation a part of your regular routine helps train your brain to respond to it, and unlocks numerous health benefits. - Calm - Calm is represented by the dominance of your parasympathetic nervous system. We measure this based on your heart rate and its variability over time (HRV). With practice, you can train yourself to reach a Calm state more quickly. - Focus - Some techniques get you energized, priming your mind and activating your senses into a highly responsive state. Core measures how much time you spend in a Focused state by the pattern of your heart rhythm. After each meditation, Core will show you how Calm and Focused you were. Long-term historical graphs lets you see how your resilience to stress is changing over time, and track your progress with daily streaks. Core will also integrate with Apple HealthKit to share Mindful Minutes and read data to improve the accuracy of your biometric insights. DEEPEN YOUR PRACTICE WITH CORE PREMIUM Go Premium to access our always-growing library of on-demand meditation classes. New sessions are added daily by our team of expert instructors, so you never get bored. Follow along with your favorite instructors to stay inspired and centered. All new users automatically receive a free 2-week trial of our premium content. After that, Core offers two auto-renewing subscription plans: $9.99 per month $69.99 for one year (that's less than $6 a month) The subscription will automatically renew unless turned off in your iTunes Account Settings at least 24 hours before the current period ends. You can go to your iTunes Account settings to manage your subscription and turn off auto-renew. Your iTunes Account will be charged when the purchase is confirmed. If you subscribe before your free trial ends, the rest of your free trial period will be forfeited as soon as your purchase is confirmed. Read our privacy policy here: [https://www.hellocore.com/privacy](https://www.hellocore.com/privacy) Read our terms and conditions here: [https://www.hellocore.com/terms](https://www.hellocore.com/terms)

About

TheStack Baseball

Enhance your baseball performance by increasing bat speed through dynamic, personalized training programs. Track your progress, connect with other players and coaches, and optimize your workouts for maximum gains. Requires a Stack Bat to begin.

Highlights
  • Dynamic training programs
  • Personalized speed trainer
  • Track speed and metrics
  • Connect with other players
  • Team monitoring for coaches
  • Variable inertia speed training
Features
Read full description

Biohack your Bat Speed so that you can swing faster & play better. From the team that brought you the Award-Winning Stack System loved by over 45,000 golfers, Dr. Sasho MacKenzie has now applied his years of speed research to create the most effective way to increase your bat speed. Players, Coaches, and Organizations across all levels of baseball can now systematically gain bat speed to hit the ball harder, farther, and have more success at the plate. What’s Inside TheStack Baseball App: * Dynamic Training Programs Customized variable inertia speed training (precision overload and overspeed) - the most efficient way to increase your bat speed. The App responds to your progress and continuously optimizes your training. The algorithms that power dynamic programming come from years of research by leading sports scientist, Dr. Sasho MacKenzie and insights from over 25 million swings from The Stack System golf’s solution. * Your Own Personal Speed Trainer Be guided through scheduled workouts while tracking Stack weight, rest, recovery, and performance gains. This information allows future workouts to be adjusted behind the scenes, so your training is optimized to maximize bat speed gains. * Track Speed, Share Metrics Seamless connection to the Stack Sensor, which is integrated into the TheStack Bat. Train anywhere, anytime. Track key performance metrics such as Stack Speed, Distance Potential, Bat Speed and Grit Score. Easily share your progress and gains. * Connect to Others Easily connect and follow other Stackers' progress and keep each other on track with your training. If you’re a Coach, add your whole team and monitor progress. *** To start speed training, you will need a Stack Bat. Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula

Screenshots

Core Meditation4 screens
TheStack Baseball4 screens

Verdict

The call

Core Meditation and TheStack Baseball both sit at 4.8 stars, but that hides the real split: 61% of Core Meditation's written reviews are positive against 0% of TheStack Baseball's. Core Meditation also leads on ads (none vs shown) and ratings volume (1.8K vs 87). TheStack Baseball's advantage is in-app purchases (none vs 2). On price, rating, update cadence 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. Core Meditation sells 2 in-app purchases, starting at $9.99 per month. TheStack Baseball asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Core Meditation against 4.9 for TheStack Baseball. That said, the two scores are not equally well evidenced: Core Meditation has 1.8K ratings behind it against 87, so its average is the more settled of the two. Written reviews are what separate them: 61% of Core Meditation's written reviews are positive against 0% of TheStack Baseball's.

UpkeepUpdate frequency

Core Meditation ships an update monthly, TheStack Baseball every 2 months. The most recent releases landed on October 16, 2026 and October 20, 2026 respectively.

Scorecard5 real differences · 5 level
Core Meditation versus TheStack Baseball: the parameters behind the verdict, then further details
ParameterCore MeditationTheStack Baseball
PriceFreeFree
Rating4.8 (1.8K ratings)4.9 (87 ratings) — better
Positive reviews61.4% of reviews — better0.0% of reviews
Number of ratings1.8K — better87
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size59 MB121 MB
Age rating4+4+
DeveloperHyper Ice, IncThe Stack System Baseball GP, Inc.

Customer experience

Core Meditation

All ratings1,819 ratings
Positive96.3%
Neutral1.8%
Negative1.9%
Written reviews83 reviews
Positive61.4%
Neutral3.6%
Negative34.9%

TheStack Baseball

All ratings53 ratings
Positive98.1%
Neutral1.9%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Core Meditation

Reported bugs

3 issues
  • Inability to cancel subscription
  • Trouble with device pairing and connectivity
  • Inaccurate or unreliable biometric tracking

Requested features

5 requests
  • Offline meditation content availability
  • Apple Watch app integration
  • Expanded search and filtering options
  • Longer meditation session durations
  • More personalization and customization

TheStack Baseball

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Core Meditation

Subscriptions2
  • Monthly Core Subscription$9.991 Month
  • Annual Core Subscription$69.991 Year
None

TheStack Baseball

No in-app purchases

Questions

Is Core Meditation free?
Core Meditation is free to download, with in-app purchases available.
Is TheStack Baseball free?
TheStack Baseball is free to download, with no in-app purchases.
Which has better reviews, Core Meditation or TheStack Baseball?
TheStack Baseball is rated higher. Core Meditation averages 4.8 out of 5 from 1.8K ratings, while TheStack Baseball averages 4.9 from 87 ratings.
Do Core Meditation or TheStack Baseball have ads?
TheStack Baseball shows ads; Core Meditation does not.
Which is updated more often, Core Meditation or TheStack Baseball?
Core Meditation ships an update monthly, and TheStack Baseball every 2 months. Most recently, Core Meditation was updated on October 16, 2026 and TheStack Baseball on October 20, 2026.

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