Test Signal Generator
Broadcast test pattern
Free · In‑App Purchases
Professional test patterns, guides, audio references and timecode for displays, projectors, LED walls, streaming and live production.
Test Signal Generator helps you validate displays, projectors, LED walls, streaming workflows and production systems using professional broadcast-style test signals.
Generate industry-standard test patterns directly from your iPhone, iPad or Mac and send them to external displays via HDMI or connected video hardware.
Features include:
• Color Bars
• Greyscale
• Full-screen color fields
• Zone Plate
• Gradient Banding Test
• Motion Test Patterns
• Moving Pixel Test
• Timecode Overlay
• Clock Overlay
• Audio Reference Signals
• Geometry Guides
• Safe Area Guides
• Frame Boundary Guides
• Social Media Framing Guides (9:16, 4:5, 1:1)
Use Signal Generator to:
• Align projectors
• Verify LED wall processors
• Detect scaling issues
• Check overscan and cropping
• Validate signal chains
• Test audio/video synchronization
• Troubleshoot streaming workflows
• Prepare live productions
Pro features unlock additional test patterns, advanced guides, audio references, custom branding.
Designed for broadcasters, AV professionals, event technicians, streamers and content creators.
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- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Praetorius GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Praetorius GmbH
- Size
- 3.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 26.5 or later.
- iPhone
Requires iOS 26.5 or later. - iPad
Requires iPadOS 26.5 or later. - Mac
Requires macOS 26.5 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Signal Generator Pro $4.99
- Copyright
- © Praetorius GmbH
