# SIMATIC Unified Air

> SIMATIC Unified Air (iPhone/iPad app by Siemens AG.)

- Source: https://appshunter.io/ios/app/simatic-unified-air/id6476095253 (this page in markdown: same URL + `.md`)
- Developer: [Siemens AG](https://appshunter.io/developer/394503271)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 14.0 · 52 MB
- Languages: American English, German (Germany)
- Released: 2024-03-18
- Data updated: 2026-03-18
- User reviews in markdown: https://appshunter.io/ios/app/simatic-unified-air/id6476095253/reviews.md

## What is SIMATIC Unified Air?

SIMATIC Unified Air 3.0 introduces Access Key Authentication, redefining secure and flexible access to SIMATIC HMI Unified Comfort Panels for modern industrial service scenarios.

Secure access without accounts or passwords

Access Key Authentication enables temporary, time-limited access to panels without creating user accounts, registering mobile devices, or sharing passwords. Engineers generate cryptographically signed Access Keys that grant precisely defined access and expire automatically.

Built for service and maintenance

Unified Air 3.0 is designed for environments with external technicians, contractors, and rotating service teams. Access is delivered quickly, securely, and entirely offline via Bluetooth.

Key features
	•	Token-based Access Key authentication
	•	No UMC user accounts required for service staff
	•	No mobile device pre-registration at the panel
	•	Time-limited access with automatic expiration
	•	Role-based authorization using existing UMC alias roles
	•	Seamless authentication via Bluetooth
	•	No cloud dependency, no central server required

Simple workflow

Engineers configure roles in TIA Portal, generate Access Keys, and securely share them with technicians.
Technicians import the key into Unified Air and authenticate silently to nearby panels.

Included Unified Air capabilities
	•	Device information
	•	Screenshot capture
	•	Report generation

Compatibility

Access Key Authentication is supported on SIMATIC HMI Unified Comfort Panels with V21 Update 1.

SIMATIC Unified Air 3.0 brings controlled access where flexibility, security, and reliability matter most.


## Version history (last 3 releases)

### 3.0.1 — 2026-03-18

Introduces Access Key Authentication, a secure, token-based access mechanism for SIMATIC HMI Unified Comfort Panels. Enables temporary, time-limited access without user accounts, device registration, or shared passwords. Access is granted via cryptographically signed Access Keys and authenticated offline via Bluetooth. Supports role-based authorization using existing UMC alias roles with automatic access expiration. Compatible with Unified Comfort Panels V21 Update 1.

### 2.0.0 — 2025-05-14

+ Screenshots: Capture and transfer screenshots directly from the HMI Unified Comfort Panel to your mobile device.
+ Reports: Generate and transfer on-demand reports containing device, system, and runtime data into a detailed .txt file.
+ Device Info Overview: Added a comprehensive device information view with MLFB, Serial, Firmware, Bootloader, Runtime version, Project name, IP addresses, direct link to device & manual access, and .txt file saving.

### 1.0.7 — 2024-03-18

No release notes.

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All apps by Siemens AG: https://appshunter.io/developer/394503271

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-03-18.*