Comparison

PianoDisc Calibrate vs KTool

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

Head to head
About

PianoDisc Calibrate

This utility app allows professional installers to calibrate automatic player pianos equipped with specific systems. It provides access to detailed settings for keys, pedals, and volume controls, streamlining the setup process for trained technicians.

Highlights
  • Key calibration
  • Pedal settings
  • Volume control adjustment
  • Firmware updates
  • MIDI interface compatibility
  • SilentDrive HD settings
Features
Read full description

PianoDisc Calibrate is a companion app for automatic player pianos equipped with Prodigy player systems.  The app allows professional PianoDisc installers to calibrate key features and settings faster and easier than ever before. PLEASE NOTE:  This app is designed to be used by professional installers who have completed the PianoDisc installation training program.  Improper adjustment is not covered under warranty, and may adversely affect playback. [Requirements] A hardware MIDI interface is required (such as the Prodigy CPU, Roland UM-ONE Mk II, or Quicco Sound mi.1).  MIDI IN and OUT must both be connected to the SilentDrive HD CPU. NOTE: The MIDI interface must be connected before you launch the app! Settings are only adjusted when the MIDI indicator is green. If the indicator remains red, try pressing the reset button on the SilentDrive CPU. [SilentDrive Settings] * Key Hold Force * Power Offset * Individual Key Calibration (Learn) * Pedal Strike Force * Pedal Hold Force * Pedal Drop Time * Minimum Note Duration * Springless Solenoids * Note Release Control (NRC) * Pedal Release Control (PRC) * Firmware Update (for CPUs manufactured in 2015 or later; the mi.1 cannot be used for firmware updates) [iQ Settings] * Music Player Volume Range * Piano Volume Range * Accompaniment Volume Range * Sync Range * Manual/Automatic Volume * Much more

About

KTool

Features
Read full description

Auto Bluetooth Device Scanning Quickly discover nearby supported devices and connect effortlessly. Stable Bluetooth Communication Built with a robust connection protocol to ensure fast and reliable data exchange. Parameter Configuration Adjust a variety of settings such as delay time, operation modes, thresholds, and more through an intuitive interface. Real-time Parameter Read & Sync Instantly read the current device settings and sync them with your mobile app for backup and verification. Smart Device Recognition Automatically detects your controller model and loads the corresponding configuration interface. Multi-language Support Available in English and Traditional Chinese, with more languages to come.

Screenshots

PianoDisc Calibrate4 screens
KTool4 screens

Verdict

The call

The clearest difference is rating: PianoDisc Calibrate at 4.5 against KTool's 4.0. PianoDisc Calibrate also leads on iOS requirement (13.0 vs 15.6). KTool's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 6 weeks). On price, review sentiment, ratings volume and ads 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

Both are free to download. PianoDisc Calibrate sells 1 one-off in-app purchase. KTool asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PianoDisc Calibrate holds the better App Store score, 4.5 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

PianoDisc Calibrate ships an update every 6 weeks, KTool fortnightly. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
PianoDisc Calibrate versus KTool: the parameters behind the verdict, then further details
ParameterPianoDisc CalibrateKTool
PriceFreeFree
Rating4.5 (2 ratings) — better4.0 (1 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.6
Further details — not scored
Size62 MB47 MB
Age rating4+17+
DeveloperBurgett Inc.Kutai

Customer experience

PianoDisc Calibrate

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KTool

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

PianoDisc Calibrate

One-time1
  • Activation Region Key$999.99
None

KTool

No in-app purchases

Questions

Is PianoDisc Calibrate free?
PianoDisc Calibrate is free to download, with in-app purchases available.
Is KTool free?
KTool is free to download, with no in-app purchases.
Which has better reviews, PianoDisc Calibrate or KTool?
PianoDisc Calibrate is rated higher. PianoDisc Calibrate averages 4.5 out of 5 from 2 ratings, while KTool averages 4.0 from 1 ratings.
Do PianoDisc Calibrate or KTool have ads?
Neither PianoDisc Calibrate nor KTool shows ads.
Which is updated more often, PianoDisc Calibrate or KTool?
PianoDisc Calibrate ships an update every 6 weeks, and KTool fortnightly. Most recently, PianoDisc Calibrate was updated on October 24, 2026 and KTool on October 24, 2026.

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