# J vs Nowak Supply

The clearest difference is update cadence: Nowak Supply at every 3 weeks against J's every 3 months. J's advantage is iOS requirement (15.6 vs 18.1). On price, ads, 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.

J ships an update every 3 months, Nowak Supply every 3 weeks. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | J | Nowak Supply |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nowak-supply/id6739004293/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 30 MB | 5 MB |
| Requires iOS | **15.6** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [深圳市佳士科技股份有限公司](https://appshunter.io/developer/1494882581) | [RL McCoy](https://appshunter.io/developer/1378385612) |

## What reviewers say

### J

[App page](https://appshunter.io/ios/app/j-weld/id6469101974)

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

**In-app purchases:** none


### Nowak Supply

[App page](https://appshunter.io/ios/app/nowak-supply/id6739004293)

This professional-grade tool offers specialized calculators for fire safety, welding, and portable sanitation planning. It generates detailed PDF reports, saves calculation history, and provides expert recommendations for compliance and project optimization.

**Highlights:** Fire Extinguisher Calculator, Welding Calculator (MIG, TIG, Stick), Porta-Jon Calculator, Professional PDF report generation, Calculation history, Offline access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is J free?

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

### Is Nowak Supply free?

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

### Do J or Nowak Supply have ads?

Neither J nor Nowak Supply shows ads.

### Which is updated more often, J or Nowak Supply?

J ships an update every 3 months, and Nowak Supply every 3 weeks. Most recently, J was updated on October 30, 2026 and Nowak Supply on November 4, 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.*