# HS vs Shade Master

The clearest difference is update cadence: HS at every 3 weeks against Shade Master's every 6 months. Shade Master's advantage is iOS requirement (10.0 vs 17.6). 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.

HS ships an update every 3 weeks, Shade Master every 6 months. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | HS | Shade Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hs-221/id1622669307/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | Free | — |
| Size | 5 MB | 96 MB |
| Requires iOS | 17.6 | **10.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HUMITAT-STOP S.L.](https://appshunter.io/developer/1622669309) | [CAME S.P.A.](https://appshunter.io/developer/478565441) |

## What reviewers say

### HS

[App page](https://appshunter.io/ios/app/hs-221/id1622669307)

This app measures and records rising damp in walls by calculating electrical resistance between two points. Readings are transmitted via Bluetooth and stored on your iPhone for easy access and analysis.

**Highlights:** Measures wall humidity, Calculates electrical resistivity, Bluetooth data transmission, Stores readings on iPhone, Rising damp registration system

**Features:** macOS Compatibility

**In-app purchases:** none


### Shade Master

[App page](https://appshunter.io/ios/app/shade-master/id6535682859)

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

**In-app purchases:** none


## Frequently asked questions

### Is HS free?

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

### Is Shade Master free?

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

### Do HS or Shade Master have ads?

Neither HS nor Shade Master shows ads.

### Which is updated more often, HS or Shade Master?

HS ships an update every 3 weeks, and Shade Master every 6 months. Most recently, HS was updated on October 3, 2026 and Shade Master on October 5, 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.*