# Moisture Probe vs HS

The clearest difference is update cadence: HS at every 3 weeks against Moisture Probe's every 2 months. Moisture Probe's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 17.6). On price, ads and in-app purchases there is nothing between them.

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

Moisture Probe ships an update every 2 months, HS every 3 weeks. The most recent releases landed on September 29, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Moisture Probe | HS |
| --- | --- | --- |
| 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 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 53 MB | 5 MB |
| Requires iOS | **10.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hip Science, LLC](https://appshunter.io/developer/1545745766) | [HUMITAT-STOP S.L.](https://appshunter.io/developer/1622669309) |

## What reviewers say

### Moisture Probe

[App page](https://appshunter.io/ios/app/moisture-probe/id1472005443)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Moisture Probe free?

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

### Is HS free?

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

### Do Moisture Probe or HS have ads?

Neither Moisture Probe nor HS shows ads.

### Which is updated more often, Moisture Probe or HS?

Moisture Probe ships an update every 2 months, and HS every 3 weeks. Most recently, Moisture Probe was updated on September 29, 2026 and HS on September 16, 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.*