# Salt vs Metal Work RegUp

The clearest difference is update cadence: Salt at every 2 months against Metal Work RegUp's every 6 months. Salt also leads on iOS requirement (11.0 vs 13.0). 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.

Salt ships an update every 2 months, Metal Work RegUp every 6 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | Salt | Metal Work RegUp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 53 MB | 33 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Think Water Srl](https://appshunter.io/developer/1712453027) | [Metal Work S.p.a.](https://appshunter.io/developer/860705650) |

## What reviewers say

### Salt

[App page](https://appshunter.io/ios/app/saltdetector/id1538991269)

**Features:** macOS Compatibility

**In-app purchases:** none


### Metal Work RegUp

[App page](https://appshunter.io/ios/app/metal-work-regup/id6449496213)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Salt free?

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

### Is Metal Work RegUp free?

Metal Work RegUp is free to download, with no in-app purchases.

### Do Salt or Metal Work RegUp have ads?

Neither Salt nor Metal Work RegUp shows ads.

### Which is updated more often, Salt or Metal Work RegUp?

Salt ships an update every 2 months, and Metal Work RegUp every 6 months. Most recently, Salt was updated on October 27, 2026 and Metal Work RegUp on October 27, 2026.

---

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