Comparison

Keyborg Pro vs Chord Roulette

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

Head to head
About

Keyborg Pro

This app transforms any MIDI keyboard into a versatile instrument, offering modes for pedal steel guitar, 6-string guitar, and advanced chord playing. It caters to both beginners and experienced musicians with intuitive chord-based controls.

Highlights
  • Pedal steel guitar simulation
  • 6-string guitar simulation
  • Advanced chord playing
  • Multiple play modes
  • Intuitive chord-based controls
  • Built-in help and tips
Features
Read full description

The Keyborg Pro technology offers five modes of play, as follows. 1. E-Z Pedal Steel Keyborg: transforms any MIDI keyboard into a fully functional pedal steel guitar, but one that is played just like a standard piano keyboard using basic piano chords. Simple enough for novices, yet sophisticated enough for the most advanced players. 2. Pedal Steel Keyborg: transforms any MIDI keyboard into a fully functional pedal steel guitar, but one that is played with all the simplicity of a standard 6-string guitar using basic barre chords. Perfect for guitar players. 3. Barre Chord Keyborg: transforms any MIDI keyboard into a fully functional 6-string guitar using basic barre chords with up/down strumming of 1-6 adjacent strings. 4. Rob’s Barre Chord Keyborg: transforms any MIDI keyboard into a fully functional 6-string guitar using basic barre chords with up/down strumming of 1-6 adjacent strings, while using a single hand for both fretting and strumming/plucking. 5. E-Z Chord Keyborg: enables advanced chord playing on any MIDI keyboard using basic chord maneuvers. For more information on the Keyborg Pro app, be sure to check out its built-in Read Me, Help, and Tips. For video demonstrations of the Keyborg Pro technology, you can visit our KeyborgPro.com website.

About

Chord Roulette

This AUv3 MIDI plugin transforms a single MIDI note into a wide range of harmonious chords, enabling generative music composition. It offers extensive control over parameters, scales, and real-time adjustments for creative musical exploration.

Highlights
  • Chord generation from single MIDI notes
  • Automation-ready parameters
  • Generative music composition
  • Diverse scale and mode selection
  • Real-time precision adjustments
  • AUv3 compatibility for DAWs
Features
Read full description

Welcome to Chord Roulette, your gateway to boundless musical creativity. Chord Roulette is an AUv3 MIDI plugin that takes a single MIDI note and transforms it into a mesmerizing array of harmonious chords, offering an infinite realm of possibilities for generative music composition. Key Features: - Chord Generation Mastery: Instantly convert a single MIDI note into a rich tapestry of harmonically intricate chords, exploring scales and tonalities effortlessly. - Automation at Your Fingertips: Every parameter within Chord Roulette is automation-ready, granting you meticulous control over your compositions. - Generative Magic: Witness your musical ideas evolve and expand organically, giving birth to fresh and captivating compositions with minimal effort. - Scale Selection Flexibility: Choose from a diverse array of scales, modes, and tonalities to craft the perfect musical atmosphere. - Real-Time Precision: Fine-tune your chord progressions and melodies on the fly, ensuring each note aligns perfectly with your vision. - AUv3 Compatibility: Seamlessly integrate Chord Roulette into your preferred iOS DAWs, offering complete creative control. With Chord Roulette, you possess the ultimate tool to compose generative music that reflects your unique artistic vision. Whether you're a composer, producer, or performer, our plugin empowers you to craft musical journeys that captivate and inspire. Unleash your musical imagination. Download Chord Roulette now and embark on an endless voyage of generative music composition!

Screenshots

Keyborg Pro4 screens
Chord Roulette1 screens

Verdict

The call

The clearest difference is price: Keyborg Pro at Free against Chord Roulette's $0.99. Keyborg Pro also leads on rating (5.0 vs 4.3) and iOS requirement (12.0 vs 15.6). Chord Roulette's advantage is update cadence (every 3 days vs fortnightly) and ratings volume (20 vs 1). On ads, in-app purchases and device support 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

Keyborg Pro is free to download; Chord Roulette costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Keyborg Pro holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Chord Roulette has 20 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Keyborg Pro ships an update fortnightly, Chord Roulette every 3 days. The most recent releases landed on October 2, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Keyborg Pro versus Chord Roulette: the parameters behind the verdict, then further details
ParameterKeyborg ProChord Roulette
PriceFree — better$0.99
Rating5.0 (1 ratings) — better4.3 (20 ratings)
Positive reviews—71.4% of reviews
Number of ratings120 — better
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size775 MB3 MB
Age rating4+4+
DeveloperGARY POGODADenis Safiullin

Customer experience

Keyborg Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Chord Roulette

All ratings20 ratings
Positive85.0%
Neutral0.0%
Negative15.0%
Written reviews21 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

In-app purchases

None

Keyborg Pro

No in-app purchases

None

Chord Roulette

No in-app purchases

Questions

Is Keyborg Pro free?
Keyborg Pro is free to download, with no in-app purchases.
Is Chord Roulette free?
Chord Roulette costs $0.99, with no in-app purchases.
Which has better reviews, Keyborg Pro or Chord Roulette?
Keyborg Pro is rated higher. Keyborg Pro averages 5.0 out of 5 from 1 ratings, while Chord Roulette averages 4.3 from 20 ratings.
Do Keyborg Pro or Chord Roulette have ads?
Neither Keyborg Pro nor Chord Roulette shows ads.
Which is updated more often, Keyborg Pro or Chord Roulette?
Keyborg Pro ships an update fortnightly, and Chord Roulette every 3 days. Most recently, Keyborg Pro was updated on October 2, 2026 and Chord Roulette on October 13, 2026.

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