# PISON vs The Chowa

The clearest difference is update cadence: PISON at every 3 weeks against The Chowa's every 5 weeks. The Chowa's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

PISON ships an update every 3 weeks, The Chowa every 5 weeks. The most recent releases landed on October 9, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PISON | The Chowa |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/pison/id6475786964/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 65 MB | 188 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Pison Technology](https://appshunter.io/developer/1705268860) | [CHOWA LLC](https://appshunter.io/developer/1813940007) |

## 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


### The Chowa

[App page](https://appshunter.io/ios/app/the-chowa/id6745799656)

**Features:** Apple Wallet, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is PISON free?

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

### Is The Chowa free?

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

### Do PISON or The Chowa have ads?

Neither PISON nor The Chowa shows ads.

### Which is updated more often, PISON or The Chowa?

PISON ships an update every 3 weeks, and The Chowa every 5 weeks. Most recently, PISON was updated on October 9, 2026 and The Chowa on October 16, 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.*