# Aluminum Processing Safety vs 39Tools

The clearest difference is update cadence: Aluminum Processing Safety at monthly against 39Tools's every 9 months. 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.

Aluminum Processing Safety ships an update monthly, 39Tools every 9 months. The most recent releases landed on October 8, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Aluminum Processing Safety | 39Tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Size | 59 MB | 112 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [广州远正智能科技股份有限公司](https://appshunter.io/developer/1632138427) | [策 王](https://appshunter.io/developer/1681706231) |

## What reviewers say

### Aluminum Processing Safety

[App page](https://appshunter.io/ios/app/aluminum-processing-safety/id1632138425)

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

**In-app purchases:** none


### 39Tools

[App page](https://appshunter.io/ios/app/39tools/id6447797534)

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

**In-app purchases:** none


## Frequently asked questions

### Is Aluminum Processing Safety free?

Aluminum Processing Safety is free to download, with no in-app purchases.

### Is 39Tools free?

39Tools is free to download, with no in-app purchases.

### Do Aluminum Processing Safety or 39Tools have ads?

Neither Aluminum Processing Safety nor 39Tools shows ads.

### Which is updated more often, Aluminum Processing Safety or 39Tools?

Aluminum Processing Safety ships an update monthly, and 39Tools every 9 months. Most recently, Aluminum Processing Safety was updated on October 8, 2026 and 39Tools 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.*