# Walter Safety vs Subzero Order

The clearest difference is update cadence: Subzero Order at every 3 weeks against Walter Safety's every 5 months. Walter Safety's advantage is iOS requirement (7.0 vs 15.2). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Walter Safety ships an update every 5 months, Subzero Order every 3 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Walter Safety | Subzero Order |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/subzero-order/id1587181509/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 46 MB | 8 MB |
| Requires iOS | **7.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [J. Walter Compagnie Lt�](https://appshunter.io/developer/567652446) | [Jorge de la vega yabor](https://appshunter.io/developer/1502940647) |

## What reviewers say

### Walter Safety

[App page](https://appshunter.io/ios/app/walter-safety/id567652443)

This app provides metal workers and welders with essential tools and information for their daily tasks. It offers charts for optimal settings on grinders, drill bits, and cutters, along with a grinding angle guide and a unit converter.

**Highlights:** Drill bit speed chart, Annular cutter chart, Abrasive speed chart, Grinding angle guide, Unit converter, Built-in level tool, Flashlight functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Subzero Order

[App page](https://appshunter.io/ios/app/subzero-order/id1587181509)

Manage your dry ice orders with ease. Place, edit, and delete orders online, add new shipping addresses, and track your order status in real-time. Receive notifications and proof of delivery for all your orders.

**Highlights:** Place, edit, and delete orders, Add new shipping addresses, Track order status, Receive proof of delivery, Get order notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Walter Safety free?

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

### Is Subzero Order free?

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

### Do Walter Safety or Subzero Order have ads?

Neither Walter Safety nor Subzero Order shows ads.

### Which is updated more often, Walter Safety or Subzero Order?

Walter Safety ships an update every 5 months, and Subzero Order every 3 weeks. Most recently, Walter Safety was updated on October 2, 2026 and Subzero Order on October 7, 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.*