Comparison

MouthPedal vs KQ MIDI Modulate

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

Head to head
About

MouthPedal

This app uses your device's camera to detect mouth openness, acting as a hands-free sustain pedal for music creation. It offers MIDI connectivity for DAWs and standalone use with MIDI keyboards, providing an accessible solution for musicians.

Highlights
  • Mouth openness recognition via TrueDepth camera
  • MIDI network connectivity for DAWs
  • AUv3 instrument support
  • Adjustable responsiveness threshold
  • Accessible design with VoiceOver and haptics
  • Hands-free control for music creation
Read full description

Introducing MouthPedal, app that harnesses mouth openness recognition technology to turn your iPhone or iPad with Face ID into a convenient, hands-free sustain pedal. Designed for a wide range of users, including people with disabilities, MouthPedal offers an accessible and alternative solution for effortlessly controlling the piano pedal. Seamlessly compatible with various DAWs on Mac or iPad or use as standalone solution with keyboard connected into device and AUv3 instrument loaded. MouthPedal enhances your music creation experience with ease. Key Features: - Mouth Openness Recognition: Benefit from real-time TrueDepth camera mouth openness recognition for controlling sustain pedal. - Coaching for Face Detection and Low Light Alert feature. - MIDI Network Connectivity: Connect your iPhone to your Mac via Wi-Fi or cable and MIDI Network Settings, ensuring compatibility with popular DAWs like GarageBand, Logic, etc. - BLE: Bluetooth Low Energy allows the app to connect to Mac, iPad, or other devices that support MIDI over BLE. - AUv3 and Support for MIDI Keyboard: The app lets you to load AUv3 instruments into the app and control them using a connected MIDI keyboard. - Adjustable Responsiveness Threshold: Customize the sensitivity of the mouth-controlled sustain pedal according to your preferences. - Accessible Design: MouthPedal is specifically developed to cater to users with disabilities, providing a unique and empowering alternative to traditional MIDI sustain pedals. VoiceOver support combined with haptics delivers instant and accessible feedback while setting the threshold. - Tutorial on connecting to Mac that automatically closes after a successful connection. Enjoy!

About

KQ MIDI Modulate

This tool is designed for advanced MIDI users to manipulate and route MIDI signals. It offers extensive control over signal conversion, note triggering, and pad-based MIDI output, including AUv3 plugins. It does not produce sound on its own.

Highlights
  • MIDI signal conversion
  • 8x16 pad output
  • Free MIDI device routing
  • AUv3 plugins included
  • Note and control signal triggering
  • Customizable signal filtering
Features
Read full description

This is a tool for MIDI experts. Not recommended for beginners. - This app by itself does not produce sound. - It converts input MIDI signals and outputs them. - You can use 8x16 pads to output any MIDI signal. - You can route MIDI devices freely. - This app includes 2 AUv3 Plugins. - Compatible only with MIDI 1.0; MIDI 2.0 is not supported. - The developer uses this app conveniently with a MIDI wind controller. Convert Converts the values of control signals. Cannot be set per channel. Note Ctrl, Threshold: Transmit note on messages only if the value of the Note Ctrl is above the threshold. Key: Key of the note signal Vel1: Velocity of Note On Vel0: Velocity of Note Off CC: Control Change AT: Channel Aftertouch PB: Pitch Bend PC: Program Change N/A: Not applicable HR: High Resolution - when enabled, handles 14-bit signals. E: Envelope, tap to open the settings window. F: Filter, tap to open the settings window. LPF: Low-pass filter, smoothes out value changes. The higher the Strength value, the slower the change. HPF: High-pass filter, applies only abrupt value changes. The value automatically approaches the Return Base value. The higher the Strength value, the faster the change. Tap the graph to switch between line graph, history, and bar graph. Long press the graph and tap “Edit Curve” to edit the curve. "- 0 +" denotes the offset; this value is added to the input value. Press the button in the top left corner to switch to a minimized view. The "!" in the top right corner is the panic button. Pressing it sends All Notes Off and All Sound Off messages. Trigger Sends signals according to the rules upon receiving specified MIDI signals. You can specify channels. Harmony: Shifted note signals Channel Rewrite: Rewrite of channels Signal Trigger: Trigger of any MIDI signal Value Offset: Increment/decrement of value Filter: Suppression of transmission Pad Consists of 8x16 pads. Note: Note signal CC/AT/PB Oneshot: Control signal (when pressed) CC/AT/PB On/Off: Control signal (press/release) Program: Patch Change (bank selectable) Convert Offset: Offset specification for the Convert screen Load Preset: File loading on the Profiles screen Misc/SysEx: Any signal Latch: Pads become toggles. If a group is specified, the pads act as radio buttons. Options Key Delay: Delays Note On Velocity Convert: When outputting Vel1 in Convert, select whether to always convert or only when legato is not present MIDI Rx Channel: Receiving channel MIDI Tx Channel: Transmitting channel Filter Other Channel: Suppress transmission of channels other than receiving channel Duplicated Notes: Specifies handling of duplicated notes Note that: The application and description contain machine-translated text.

Screenshots

MouthPedal4 screens
KQ MIDI Modulate4 screens

Verdict

The call

The clearest difference is price: MouthPedal at Free against KQ MIDI Modulate's $5.99. MouthPedal also leads on review sentiment (100% vs 67%). KQ MIDI Modulate's advantage is update cadence (every 3 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement 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

MouthPedal is free to download; KQ MIDI Modulate costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

MouthPedal ships an update every 2 months, KQ MIDI Modulate every 3 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
MouthPedal versus KQ MIDI Modulate: the parameters behind the verdict, then further details
ParameterMouthPedalKQ MIDI Modulate
PriceFree — better$5.99
Rating—5.0 (4 ratings) — better
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings—4 — better
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperPeter HafnerRyouta Kira

Customer experience

MouthPedal

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KQ MIDI Modulate

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

In-app purchases

None

MouthPedal

No in-app purchases

None

KQ MIDI Modulate

No in-app purchases

Questions

Is MouthPedal free?
MouthPedal is free to download, with no in-app purchases.
Is KQ MIDI Modulate free?
KQ MIDI Modulate costs $5.99, with no in-app purchases.
Do MouthPedal or KQ MIDI Modulate have ads?
Neither MouthPedal nor KQ MIDI Modulate shows ads.
Which is updated more often, MouthPedal or KQ MIDI Modulate?
MouthPedal ships an update every 2 months, and KQ MIDI Modulate every 3 weeks. Most recently, MouthPedal was updated on October 24, 2026 and KQ MIDI Modulate on October 27, 2026.

Other comparisons