Gold King vs Indoor Humidity Predictor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Gold King
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Welcome to Gold King Bullion, the ultimate app for keeping you informed about the latest precious metal rates! Whether you're an experienced investor or simply curious about bullion prices,Gold King Bullion is your trusted companion.
Indoor Humidity Predictor
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.
- 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
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Transform your iPhone into a smart hygrometer and humidity monitor - no expensive hardware needed! Indoor Humidity Predictor uses your phone's built-in sensors to measure indoor humidity levels in seconds. Perfect for tracking air quality at home, protecting wooden instruments, caring for houseplants, or managing allergies and respiratory health. WHY MONITOR HUMIDITY? - Dry air (under 40% RH) causes dry skin, sore throats, static electricity, cracked wood furniture and warped guitars - Humid air (over 60% RH) promotes mold growth, dust mites, musty odors and can trigger asthma - The ideal humidity range of 40-60% keeps you comfortable and healthy HOW IT WORKS Our advanced sensor-fusion technology combines multiple data sources for accurate readings: - Barometric Pressure Analysis: Uses your device's barometer with local weather data - Ambient Light Sensing: Detects moisture particles in the air - Weather Integration: Cross-references outdoor conditions for indoor estimation - Confidence Scoring: Know how reliable each reading is KEY FEATURES - Quick Scan: Get humidity readings in under 30 seconds - Live Gauge Display: Beautiful animated speedometer-style visualization - Smart Recommendations: Actionable tips to improve your air quality - History Tracking: Monitor humidity trends over time - Works Offline: No internet required after initial setup PERFECT FOR - Homeowners monitoring indoor air quality - Allergy and asthma sufferers - Parents with newborns and young children - Plant lovers and terrarium keepers - Musicians protecting guitars, violins and pianos - Wine collectors and cigar enthusiasts - Anyone wanting healthier, more comfortable indoor air PRIVACY FOCUSED All calculations happen on your device. No personal data is collected or shared. Download now and discover your home's hidden humidity levels! Note: Indoor Humidity Predictor provides estimates for informational purposes. For precise measurements, use a calibrated hygrometer.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Gold King | Indoor Humidity Predictor |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | — | 2.0 (4 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 56 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Aurify | Constant Heritage, LLC |
In-app purchases
Gold King
No in-app purchases
Indoor Humidity Predictor
No in-app purchases
Questions
Is Gold King free?
Is Indoor Humidity Predictor free?
Do Gold King or Indoor Humidity Predictor have ads?
Which is updated more often, Gold King or Indoor Humidity Predictor?
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