Comparison

GenR8 vs VKO1

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GenR8

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.

Highlights
  • 28+ Professional Test Patterns
  • External Display Support (HDMI, DisplayPort, AirPlay)
  • HDR Pattern Support
  • Audio Test Tones & Live Metering
  • Precision Controls & Customizable Overlays
  • Export Test Patterns
Features
Read full description

KEY FEATURES: * 28+ Professional Test Patterns - SMPTE color bars, calibration grids, convergence patterns, HDR test signals, luma stepping, IRE patterns, and more * External Display Support - Connect via USB-C to HDMI/DisplayPort or AirPlay. Full 1:1 pixel mapping for accurate calibration * AV Sync Test * Audio Test Tones - Sine, square, sawtooth, and white noise waveforms from 20Hz to 20kHz with live stereo metering * HDR Pattern Support - PQ curve test patterns, HDR color bars, and BT.2111 UHD patterns for HDR display validation * Precision Controls - Customizable aspect ratio overlays, diagnostic crosshairs, border guides, and adjustable scanning color bars * Live Audio Metering - Real-time L/R level meters with peak detection for audio signal monitoring * iPad Optimized - Split-view interface with pattern library sidebar and full-screen preview * Customizable Overlays - Display resolution info, clock, date, custom text, and diagnostic guides * Export Test Patterns in PNG, PDF, JPG, TIFF PERFECT FOR: - Video engineers calibrating displays - AV technicians testing signal chains - Filmmakers validating monitor accuracy - Content creators ensuring color fidelity - Anyone needing professional test patterns on the go DISPLAYS SUPPORTED: *External monitors, projectors, TVs, and broadcast displays via HDMI, DisplayPort, or AirPlay. Made with precision for professionals who demand accuracy.

About

VKO1

Create stunning, real-time visuals for your music performances without needing VJ experience. Load clips, sync to your BPM, and let the app handle the visuals hands-free with automated mixing and effects. Build custom reactive visuals using a node editor and import your own shaders.

Highlights
  • Automated beat-synced visual mixing
  • Node editor for custom visual creation
  • Import custom Metal shaders
  • Real-time GPU-accelerated effects
  • Multiple control options (iPhone, iPad, MIDI, gamepad)
  • Music sync via tap tempo, MIDI clock, Ableton Link
  • Downloadable visualizers from the store
Features
Read full description

WHAT IS VKO1 (VisualKO) VKO1 is a visual performance app for iPad, iPhone, and Apple Silicon Mac — built for musicians and DJs who want stunning visuals without a dedicated VJ. Load your clips, set your BPM, and let it run. Made for performers You're playing. VKO1 stays locked to your music and keeps visuals moving — no babysitting required. Automix does the work MIX mode pulls from all 8 banks, auto-switches on the beat, and rotates effects automatically. A full visual set, hands-free. Build your own visuals The Node Editor lets you wire together generators, modifiers, and combiners into custom reactive visuals — no coding needed. Import your own Metal shaders or start from scratch. Browse the Store Download free and premium GPU visualizers — real-time Metal shaders that run directly on your device. No video files. No lag. Drop them straight into your set and go. Control from anywhere iPhone in your pocket, iPad on a stand, MIDI controller on your table, Bluetooth gamepad in your hand. AirPlay to the big screen — no cables. 51 real-time effects All BPM-synced, all GPU-accelerated via Metal. One knob controls everything playing. Stays in sync Tap tempo, MIDI clock, Ableton Link — four ways to lock visuals to your music.

Screenshots

GenR84 screens
VKO14 screens

Verdict

The call

The clearest difference is review sentiment: GenR8 at 100% against VKO1's 0%. GenR8 also leads on in-app purchases (none vs 4) and rating (4.9 vs 4.5). VKO1's advantage is price ($11.99 vs $19.99). On ratings volume, update cadence, ads and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

GenR8 costs $19.99 and VKO1 $11.99 up front. VKO1 sells 4 one-off in-app purchases. GenR8 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GenR8 holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 100% of GenR8's written reviews are positive against 0% of VKO1's.

UpkeepUpdate frequency

GenR8 ships an update every 10 days, VKO1 every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
GenR8 versus VKO1: the parameters behind the verdict, then further details
ParameterGenR8VKO1
Price$19.99$11.99 — better
Rating4.9 (9 ratings) — better4.5 (4 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings9 — better4
Update frequencyEvery 10 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS17.0 — better18.6
Further details — not scored
Size21 MB49 MB
Age rating4+4+
DeveloperChristopher Van HooseJuan Maguid

Customer experience

GenR8

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

VKO1

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

GenR8

No in-app purchases

4 purchases

VKO1

One-time4
  • Phosphor Cult Shader Pack$1.99
  • Computer Veld Pack$1.99
  • Alchemist Sketchbook Pack$1.99
Show 1 more
  • Daft Cyber Pack$1.99

Questions

Is GenR8 free?
GenR8 costs $19.99, with no in-app purchases.
Is VKO1 free?
VKO1 costs $11.99, and also offers in-app purchases.
Which has better reviews, GenR8 or VKO1?
GenR8 is rated higher. GenR8 averages 4.9 out of 5 from 9 ratings, while VKO1 averages 4.5 from 4 ratings.
Do GenR8 or VKO1 have ads?
Neither GenR8 nor VKO1 shows ads.
Which is updated more often, GenR8 or VKO1?
GenR8 ships an update every 10 days, and VKO1 every 2 weeks. Most recently, GenR8 was updated on November 5, 2026 and VKO1 on October 31, 2026.

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