# Stadler Form vs Noble Bonsai

The clearest difference is iOS requirement: Stadler Form at 13.0 against Noble Bonsai's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Stadler Form ships an update every 8 months, Noble Bonsai every 5 months. The most recent releases landed on June 1, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Stadler Form | Noble Bonsai |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 211 MB | 29 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Stadler Form Aktiengesellschaft](https://appshunter.io/developer/1656746115) | [NOBLE BONSAI SNC](https://appshunter.io/developer/1782766113) |

## 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


### Noble Bonsai

[App page](https://appshunter.io/ios/app/noble-bonsai/id6738886708)

**In-app purchases:** none


## Frequently asked questions

### Is Stadler Form free?

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

### Is Noble Bonsai free?

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

### Do Stadler Form or Noble Bonsai have ads?

Neither Stadler Form nor Noble Bonsai shows ads.

### Which is updated more often, Stadler Form or Noble Bonsai?

Stadler Form ships an update every 8 months, and Noble Bonsai every 5 months. Most recently, Stadler Form was updated on June 1, 2026 and Noble Bonsai on June 2, 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.*