# Stealth Hydro Data vs AromaPro

The clearest difference is update cadence: AromaPro at every 4 months against Stealth Hydro Data's every 41 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Stealth Hydro Data ships an update every 41 months, AromaPro every 4 months. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Stealth Hydro Data | AromaPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/aromapro/id6464246928/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 4 months** |
| Monetization | — | Free |
| Size | 8 MB | 26 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [JM Test Systems Inc.](https://appshunter.io/developer/1477078443) | [小飞 李](https://appshunter.io/developer/1701740089) |

## What reviewers say

### Stealth Hydro Data

[App page](https://appshunter.io/ios/app/stealth-hydro-data/id1492354898)

**Features:** macOS Compatibility

**In-app purchases:** none


### AromaPro

[App page](https://appshunter.io/ios/app/aromapro/id6464246928)

Manage your aromatherapy system with automated scheduling and customizable fragrance intensity. Enjoy a personalized and comfortable scent experience anytime, anywhere to enhance your quality of life.

**Highlights:** Automated fragrance scheduling, Customizable scent intensity, Timed and quantitative spraying, Personalized aromatherapy experience, Remote system management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Stealth Hydro Data free?

Stealth Hydro Data is free to download, with no in-app purchases.

### Is AromaPro free?

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

### Do Stealth Hydro Data or AromaPro have ads?

Neither Stealth Hydro Data nor AromaPro shows ads.

### Which is updated more often, Stealth Hydro Data or AromaPro?

Stealth Hydro Data ships an update every 41 months, and AromaPro every 4 months. Most recently, Stealth Hydro Data was updated on October 2, 2026 and AromaPro on October 5, 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.*