# PISON vs TheStack Baseball

The clearest difference is ads: PISON at none against TheStack Baseball's shown. PISON also leads on update cadence (every 3 weeks vs every 2 months) and monetization model (free vs ad-supported). TheStack Baseball's advantage is ratings volume (53 vs 7). On price, rating, in-app purchases and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for PISON against 4.9 for TheStack Baseball. That said, the two scores are not equally well evidenced: TheStack Baseball has 53 ratings behind it against 7, so its average is the more settled of the two.

PISON ships an update every 3 weeks, TheStack Baseball every 2 months. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PISON | TheStack Baseball |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pison/id6475786964/reviews)** | [4.9 (53 ratings)](https://appshunter.io/ios/app/thestack-baseball/id6477413655/reviews) |
| Number of ratings | 7 | **53** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 65 MB | 121 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pison Technology](https://appshunter.io/developer/1705268860) | [The Stack System Baseball GP, Inc.](https://appshunter.io/developer/1729294195) |

## What reviewers say

### PISON

[App page](https://appshunter.io/ios/app/pison/id6475786964)

This app provides insights into your cognitive and physical performance using data from compatible smartwatches. It helps you understand readiness, mental agility, and focus, with advanced metrics for sleep, stress, and health available through membership tiers.

**Highlights:** Cognitive performance metrics (Readiness, Agility, Focus), Sleep and fatigue tracking, Stress and health monitoring, Fitness metrics (respiratory rate, calories), Community leaderboards and groups, Insights from neural sensor technology

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### TheStack Baseball

[App page](https://appshunter.io/ios/app/thestack-baseball/id6477413655)

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:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PISON free?

PISON is free to download, with no in-app purchases.

### Is TheStack Baseball free?

TheStack Baseball is free to download, with no in-app purchases.

### Which has better reviews, PISON or TheStack Baseball?

PISON is rated higher. PISON averages 5.0 out of 5 from 7 ratings, while TheStack Baseball averages 4.9 from 53 ratings.

### Do PISON or TheStack Baseball have ads?

TheStack Baseball shows ads; PISON does not.

### Which is updated more often, PISON or TheStack Baseball?

PISON ships an update every 3 weeks, and TheStack Baseball every 2 months. Most recently, PISON was updated on October 9, 2026 and TheStack Baseball on October 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*