# Hygrometer vs TradeChallenge

The clearest difference is in-app purchases: TradeChallenge at none against Hygrometer's 2. TradeChallenge also leads on ads (none vs shown) and iOS requirement (11.0 vs 17.0). Hygrometer's advantage is chart position (#160 vs unranked). On price, update cadence and device support there is nothing between them.

Both are free to download. Hygrometer sells 2 one-off in-app purchases. TradeChallenge asks for nothing beyond the download.

Hygrometer ships an update every 3 weeks, TradeChallenge every 2 weeks. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Hygrometer | TradeChallenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6.1K ratings)](https://appshunter.io/ios/app/hygrometer-humidity/id515673004/reviews)** | — |
| Number of ratings | **6.1K** | — |
| Positive reviews | 52.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#160** | — |
| Size | 114 MB | 74 MB |
| Requires iOS | 17.0 | **11.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [MORETHAN APPS](https://appshunter.io/developer/473001840) | [ООО 12](https://appshunter.io/developer/1602205787) |

## What reviewers say

### Hygrometer

[App page](https://appshunter.io/ios/app/hygrometer-humidity/id515673004)

**Currently charting:** #160 Top Free · Weather (US App Store)

This application provides real-time outdoor humidity readings for your current location. It features an easy-to-read analog design and is compatible with iPhone, iPad, and Apple Watch.

**Highlights:** Real-time outdoor humidity, Current location readings, Analog design, iPhone/iPad support, Apple Watch support

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $1.99 | one-time |
| Buy me a coffee | $2.99 | one-time |

**What reviewers like**

- 🚀 Accurate humidity readings
- 👍 Simple and easy to use
- 👍 Helpful for monitoring humidity levels
- 👍 Useful for specific needs (e.g., guitar storage, painting)

**What reviewers complain about**

- 🐛 Inaccurate humidity readings
- 🐛 Inconsistent performance, app crashes
- 🔋 Drains battery
- 📍 Provides location-based data, not actual indoor measurements

**Reported bugs**

- App crashes on startup
- Humidity readings are wildly inaccurate
- Location tracking issues

**Requested features**

- Add temperature information
- Include indoor humidity monitoring
- Provide humidity trend/forecast
- Add ability to set humidity alerts/notifications


### TradeChallenge

[App page](https://appshunter.io/ios/app/tradechallenge/id6449224001)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hygrometer free?

Hygrometer is free to download, with in-app purchases available.

### Is TradeChallenge free?

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

### Do Hygrometer or TradeChallenge have ads?

Hygrometer shows ads; TradeChallenge does not.

### Which is updated more often, Hygrometer or TradeChallenge?

Hygrometer ships an update every 3 weeks, and TradeChallenge every 2 weeks. Most recently, Hygrometer was updated on October 31, 2026 and TradeChallenge on October 27, 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.*