# Absolute Humidity vs AURA Sync

The clearest difference is ads: AURA Sync at none against Absolute Humidity's shown. AURA Sync also leads on iOS requirement (13.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Absolute Humidity sells 2 in-app purchases, starting at $1.99 per month and AURA Sync sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Absolute Humidity | AURA Sync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/absolute-humidity/id1640356804/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 40 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Hirobe](https://appshunter.io/developer/572236713) | [Haruki Hirai](https://appshunter.io/developer/1896029842) |

## What reviewers say

### Absolute Humidity

[App page](https://appshunter.io/ios/app/absolute-humidity/id1640356804)

This app calculates and displays absolute humidity using temperature and relative humidity data from connected devices. It helps users understand their environmental comfort level with numerical values and visuals. A Pro version offers weather forecasts for any location.

**Highlights:** Absolute humidity calculation, Supports HomeKit & SwitchBot meters, Comfort level visualization, Weather information (Pro version), Volumetric & gravimetric humidity display, Ad-free experience (Pro version)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Annual Plan | $17.49 | per year |


### AURA Sync

[App page](https://appshunter.io/ios/app/aura-sync/id6775190436)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AURA Sync Premium | $2.99 | per month |
| AURA Sync Premium | $24.99 | per year |


## Frequently asked questions

### Is Absolute Humidity free?

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

### Is AURA Sync free?

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

### Do Absolute Humidity or AURA Sync have ads?

Absolute Humidity shows ads; AURA Sync does not.

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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.*