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GenR8

GenR8

Display Calibration Generator

9 ratings
6 reviews
πŸ”§ Utilities
πŸ“· Photo & Video
$19.99

Details

Released
December 7, 2025
Updated
October 28, 2026

Features

Developer

Christopher Van Hoose
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GenR8 screenshot #1 for iPhone
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GenR8 screenshot #6 for iPhone
iphone
iphoneDuo
ipad
⭐6
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❓8 answered
FAQβ†˜οΈŽ
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About

Generate professional test patterns for display calibration and validation. Supports external displays via HDMI, DisplayPort, or AirPlay, with HDR pattern support and precision controls for accurate results. Export patterns in various formats.

βœ“28+ Professional Test Patterns
βœ“External Display Support (HDMI, DisplayPort, AirPlay)
βœ“HDR Pattern Support
βœ“Audio Test Tones & Live Metering
βœ“Precision Controls & Customizable Overlays
βœ“Export Test Patterns
Show original description
+1

What's New in GenR8

1.7.1

October 28, 2026

- iPhone Duo support: the layout adapts as you fold and unfold, and test patterns now fill the whole screen, edge to edge. - External display HDR: choose Auto, On or Off for HDR output to an external display. - Reference signal levels: standards-based patterns now use exact ITU-R BT.601/BT.709 video levels. - Pixel-accurate Checkerboard and Resolution Chart: every edge lands exactly on a device pixel, with 4-, 3-, 2- and 1-pixel line-pair bursts. - Smoother pattern picker: thumbnails scroll more smoothly. - Fully translated into all 10 supported languages. - VoiceOver now announces color swatch names. - Bug fixes and performance improvements.

More

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.
DDrEVILish

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!!!
JAJLZ Apple

plz

When connecting a monitor with USB-C to HDMI on an iPhone, the monitor does not display full screen. Please support this.
μ‰¬μ‰¬λ“œ

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
CCCameron 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
BBauerTG

Response from developer

Thank you for the feedback!

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FAQ

What is GenR8 used for?

GenR8 is used to generate professional test patterns for calibrating and validating displays. It provides a wide range of patterns essential for ensuring accurate color fidelity and signal integrity for video professionals.

Does GenR8 support external displays?

Yes, GenR8 supports external displays through connections like USB-C to HDMI/DisplayPort or AirPlay. This allows for 1:1 pixel mapping for precise calibration on monitors, projectors, and TVs.

What kind of test patterns does GenR8 offer?

GenR8 offers over 28 professional test patterns, including SMPTE color bars, calibration grids, convergence patterns, HDR test signals, luma stepping, and IRE patterns.

Can GenR8 export test patterns?

Yes, GenR8 allows users to export test patterns in various common formats such as PNG, PDF, JPG, and TIFF. This is useful for documentation or further analysis.

Is GenR8 suitable for HDR displays?

Absolutely. GenR8 includes specific HDR pattern support, such as PQ curve test patterns, HDR color bars, and BT.2111 UHD patterns, to validate HDR display performance.

What audio features are included in GenR8?

GenR8 includes audio test tones with sine, square, sawtooth, and white noise waveforms ranging from 20Hz to 20kHz. It also features live stereo metering with peak detection for audio signal monitoring.

What devices is GenR8 available on?

GenR8 is optimized for iPad and also supports iPhone. It features a split-view interface on iPad for efficient workflow.

How often is GenR8 updated?

The latest version of GenR8 is 1.7.1, which was last updated on October 28, 2026. This indicates a commitment to ongoing development and improvements.