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GenR8

GenR8

Display Calibration Generator

9 ratings
6 reviews
🔧 Utilities
📷 Photo & Video
$19.99

Details

  • Released
  • Updated
  • December 7, 2025
  • March 22, 2026

Features

Developer

Christopher Van Hoose
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iphone
ipad
⭐6
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❓8 answered
FAQ↘︎
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About

Generate professional test patterns for display calibration and validation. Supports external displays, audio testing, and HDR signals. Ideal for video engineers, filmmakers, and content creators needing precise visual and audio analysis on the go.

✓28+ professional test patterns
✓External display support (USB-C, AirPlay)
✓HDR pattern support
✓Audio test tones and live metering
✓Precision controls and customizable overlays
✓Export test patterns (PNG, PDF, JPG, TIFF)
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What's New in GenR8

1.6.1

March 22, 2026

Fixed an issue where HDR Pattern would not render when connected to a SDR display. System now switches to EDR mode. Fixed an issue where AV Sync overlay and test pattern animations would not run when Reduce Motion was enabled.

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User reviews

Most RecentHighest RatedLowest Rated

Sync Video would be handy

Great App really handy a sync style video with sound would be great.

AV Sync added but if Reduce Motion is turned on in System Settings the App doesn’t have any movement.
DrEVILishDrEVILish

Response from developer

The latest version has a fix for this. Thank you for the feedback!

AWESOME!

This app is incredible!! I especially love that it shows the output resolution and that I can upload my own images. THANK YOU for creating this!!!
JLZ AppleJLZ Apple

plz

When connecting a monitor with USB-C to HDMI on an iPhone, the monitor does not display full screen. Please support this.
쉬드쉬드

Response from developer

Please email us at cvhvisuals@icloud.com so that we can get this situated quickly. Thank you!

Add ability

Great app but in the uk we use 50hz and 1080i it would be great to have that added
Cameron chmCameron chm

Response from developer

Thank you for the feedback! Unfortunately this is a limitation from iOS that reports the highest refresh rates available. We are working on a manual solution to push EDIDs, yet it is not supported as of yet within iOS. Interlaced format are also not supported with iOS devices, you could use an external converter inline, yet I realize this defeats the purpose of a mobile unit. As soon as there is an available solution we will add this capability.

Works - no tricks

It does what it says at a fair price. No subscription or tricks to try and monetize you or your data
BauerTGBauerTG

Response from developer

Thank you for the feedback!

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FAQ

What is GenR8 used for?

GenR8 is a utility app designed to generate professional test patterns for calibrating and validating displays. It offers a wide range of patterns for video engineers, filmmakers, and content creators to ensure color fidelity and signal accuracy.

What kind of test patterns does GenR8 offer?

GenR8 provides over 28 professional test patterns, including SMPTE color bars, calibration grids, convergence patterns, HDR test signals, luma stepping, and IRE patterns, catering to various calibration needs.

Can GenR8 connect to external displays?

Yes, GenR8 supports external display connections via USB-C to HDMI/DisplayPort or AirPlay, ensuring full 1:1 pixel mapping for accurate calibration of monitors, projectors, and TVs.

Does GenR8 include audio testing features?

Yes, GenR8 includes audio test tones with waveforms from 20Hz to 20kHz and live stereo metering with peak detection for real-time audio signal monitoring.

Is GenR8 suitable for HDR display validation?

Absolutely. GenR8 features HDR pattern support, including PQ curve test patterns, HDR color bars, and BT.2111 UHD patterns specifically for validating HDR displays.

What devices is GenR8 compatible with?

GenR8 is optimized for iPad and also supports iPhone. It is designed for professional use on the go, offering a split-view interface on iPads for enhanced workflow.

How often is GenR8 updated?

The latest version of GenR8 is 1.6.1, which was last updated on March 22, 2026. Updates typically address bug fixes and feature enhancements to maintain optimal performance.

What is the price of GenR8?

GenR8 is a paid application, available for a one-time purchase of $19.99. This price grants users access to all professional features without ongoing subscription fees or in-app purchases.