# Stadler Form vs Gnossy

The clearest difference is in-app purchases: Stadler Form at none against Gnossy's 4. Stadler Form also leads on iOS requirement (13.0 vs 15.1). Gnossy's advantage is update cadence (every 5 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. Gnossy sells 4 in-app purchases, starting at $9.99 per month. Stadler Form asks for nothing beyond the download.

Stadler Form ships an update every 8 months, Gnossy every 5 days. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Stadler Form | Gnossy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (3 ratings)](https://appshunter.io/ios/app/stadler-form/id6444773634/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 211 MB | 75 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Stadler Form Aktiengesellschaft](https://appshunter.io/developer/1656746115) | [Giuliano Skara](https://appshunter.io/developer/1863081205) |

## What reviewers say

### Stadler Form

[App page](https://appshunter.io/ios/app/stadler-form/id6444773634)

Control your Stadler Form air treatment devices remotely via Wi-Fi. Monitor room air quality, adjust settings like power level and timer, and activate features such as auto-mode and child lock. Connect your compatible air humidifier or purifier quickly and easily.

**Highlights:** Remote device control, Wi-Fi and Bluetooth connectivity, Monitor room air values, Adjust power levels, Timer function, Auto-mode activation, Child lock

**Features:** macOS Compatibility

**In-app purchases:** none


### Gnossy

[App page](https://appshunter.io/ios/app/gnossy/id6756816637)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Monats Abonnement | $9.99 | per month |
| 3 Monats Abonnement | $29.99 | per 3 months |
| 6 Monats Abonnement | $59.99 | per 6 months |
| GnossyYear Plan | $99.99 | per year |


## Frequently asked questions

### Is Stadler Form free?

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

### Is Gnossy free?

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

### Do Stadler Form or Gnossy have ads?

Neither Stadler Form nor Gnossy shows ads.

### Which is updated more often, Stadler Form or Gnossy?

Stadler Form ships an update every 8 months, and Gnossy every 5 days. Most recently, Stadler Form was updated on October 11, 2026 and Gnossy on October 6, 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.*