# Test Signal Generator — Broadcast test pattern

> Broadcast test pattern (iPhone/iPad app by Praetorius GmbH.)

- Source: https://appshunter.io/ios/app/test-signal-generator/id6781354860 (this page in markdown: same URL + `.md`)
- Developer: [Praetorius GmbH](https://appshunter.io/developer/6776974754)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.5 · 3 MB
- Languages: American English
- Released: 2026-07-06
- Data updated: 2026-07-20
- User reviews in markdown: https://appshunter.io/ios/app/test-signal-generator/id6781354860/reviews.md

## What is Test Signal Generator?

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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Signal Generator Pro | $4.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-07-08

No release notes.

## More apps by Praetorius GmbH

- [Praetorius Teleprompter Studio](https://appshunter.io/ios/app/praetorius-teleprompter-studio/id6776974337)

All apps by Praetorius GmbH: https://appshunter.io/developer/6776974754

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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 2026-07-20.*