# HS vs VJHumidity

The clearest difference is update cadence: VJHumidity at every 8 days against HS's every 3 weeks. VJHumidity also leads on iOS requirement (12.4 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, VJHumidity every 8 days. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | HS | VJHumidity |
| --- | --- | --- |
| 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 8 days** |
| Monetization | Free | — |
| Size | 5 MB | 13 MB |
| Requires iOS | 17.6 | **12.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HUMITAT-STOP S.L.](https://appshunter.io/developer/1622669309) | [CHANG SHIN VIETNAM COMPANY LTD](https://appshunter.io/developer/1603354571) |

## 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


### VJHumidity

[App page](https://appshunter.io/ios/app/vjhumidity/id1671924199)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HS free?

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

### Is VJHumidity free?

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

### Do HS or VJHumidity have ads?

Neither HS nor VJHumidity shows ads.

### Which is updated more often, HS or VJHumidity?

HS ships an update every 3 weeks, and VJHumidity every 8 days. Most recently, HS was updated on October 3, 2026 and VJHumidity 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.*