# 湿度計++ vs Hygrometer

The clearest difference is ads: Hygrometer at none against 湿度計++'s shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. 湿度計++ sells 4 one-off in-app purchases and Hygrometer sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

湿度計++ ships an update monthly, Hygrometer every 2 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | 湿度計++ | Hygrometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.8 (4 ratings)](https://appshunter.io/ios/app/hygrometer-air-humidity/id6766926290/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 62 MB | 40 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [Tirin](https://appshunter.io/developer/1665717789) |

## What reviewers say

### 湿度計++

[App page](https://appshunter.io/ios/app/plus-plus/id1633054315)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| アプリケーション開発者への応援募金 | $1.99 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


### Hygrometer

[App page](https://appshunter.io/ios/app/hygrometer-air-humidity/id6766926290)

This app provides precise, real-time outdoor humidity data using advanced weather APIs. It features a visually appealing liquid-glass design and offers hourly and multi-day humidity forecasts. Ideal for monitoring indoor climates, protecting your home, or ensuring personal comfort.

**Highlights:** Real-time humidity tracking, 24-hour humidity forecast, 3-day humidity outlook, Liquid-glass design, iOS widgets, Background humidity alerts (PRO)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hygrometer Pro Monthly | $2.99 | per month |
| Hygrometer Pro Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is 湿度計++ free?

湿度計++ is free to download, with in-app purchases available.

### Is Hygrometer free?

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

### Do 湿度計++ or Hygrometer have ads?

湿度計++ shows ads; Hygrometer does not.

### Which is updated more often, 湿度計++ or Hygrometer?

湿度計++ ships an update monthly, and Hygrometer every 2 months. Most recently, 湿度計++ was updated on October 27, 2026 and Hygrometer on October 28, 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.*