# Gold King vs Indoor Humidity Predictor

The clearest difference is price: Gold King at Free against Indoor Humidity Predictor's $3.99. Gold King also leads on iOS requirement (13.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Gold King is free to download; Indoor Humidity Predictor costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Gold King | Indoor Humidity Predictor |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[2.0 (4 ratings)](https://appshunter.io/ios/app/indoor-humidity-predictor/id6748092001/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | — | Paid |
| Size | 56 MB | 19 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aurify](https://appshunter.io/developer/1812159103) | [Constant Heritage, LLC](https://appshunter.io/developer/1206999958) |

## What reviewers say

### Gold King

[App page](https://appshunter.io/ios/app/gold-king/id6504336638)

**Features:** macOS Compatibility

**In-app purchases:** none


### Indoor Humidity Predictor

[App page](https://appshunter.io/ios/app/indoor-humidity-predictor/id6748092001)

Transform your iPhone into a smart hygrometer to measure indoor humidity levels without extra hardware. Track air quality, protect wooden instruments, care for houseplants, and manage allergies with quick scans and actionable tips.

**Highlights:** Measure indoor humidity with phone sensors, Track air quality and health impacts, Protect wooden instruments and houseplants, Receive smart recommendations for air quality, Monitor humidity trends over time, Works offline after initial setup

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Gold King free?

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

### Is Indoor Humidity Predictor free?

Indoor Humidity Predictor costs $3.99, with no in-app purchases.

### Do Gold King or Indoor Humidity Predictor have ads?

Neither Gold King nor Indoor Humidity Predictor shows ads.

### Which is updated more often, Gold King or Indoor Humidity Predictor?

Gold King ships an update monthly, and Indoor Humidity Predictor monthly. Most recently, Gold King was updated on October 27, 2026 and Indoor Humidity Predictor on October 31, 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.*