Comparison

Knob Lab vs Launch Buttons

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

Head to head
About

Knob Lab

This application transforms your iOS device into a versatile MIDI controller. It allows you to manage various DAWs and music software remotely via USB, WiFi, or Bluetooth. Create intricate control setups with a single rotary knob, affecting multiple MIDI destinations simultaneously.

Highlights
  • Remote DAW control
  • USB, WiFi, Bluetooth connectivity
  • Virtual MIDI support
  • Audiobus integration
  • Complex control mapping
  • iPad support
  • MIDI logger
Features
Read full description

Knob Lab turns your iPhone or iPad into a MIDI controller built around one idea: a single knob can do many things at once. ONE KNOB. MANY MOVES. Map a knob to up to 8 MIDI destinations. Each has its own range, direction, channel and colour, so one turn can open a filter, pull the resonance back and bring the delay in over the second half of the sweep. BUILD YOUR OWN MACROS • Control Change, Program Change and Pitch Bend destinations • Name every knob and every destination, so a setup reads at a glance • Invert any range, or start a destination part-way through the turn • Rotate completely, snap to middle, pan left/right, or return to origin on release • A coloured lane for every destination shows where each one is A LAYOUT FOR EVERY SETUP Start with one big knob, or unlock layouts with 2, 6 or 12 knobs on a single screen. PLAYS WITH EVERYTHING • Music apps on the same device, through Knob Lab's virtual MIDI output • Computers over Wi-Fi, with a network MIDI session • A Mac over USB or Bluetooth, with Sonic Logic Central • Class-compliant USB MIDI interfaces and synths plugged into your iPhone or iPad MADE FOR TOUCH Large, precise knobs, a quick guided start, and Dark, Light and Neon themes. The one-knob layout is free. The 2, 6 and 12 knob layouts are in-app purchases, available one at a time or all together.

About

Launch Buttons

This app acts as a MIDI controller for music production software, allowing users to perform tracks without needing physical hardware. It offers a grid of buttons, scene and transport controls, and can be expanded with additional features through an in-app purchase.

Highlights
  • MIDI controller for music production
  • 8x8 button grid
  • Scene and transport controls
  • Step sequencer (with script)
  • Scale mode (with script)
  • Apple Watch extension
Features
Read full description

THIS APP DOES NOT PLAY AUDIO BECAUSE IT'S A MIDI CONTROLLER FOR ABLETON LIVE Launch Buttons is a MIDI controller that lets you perform your tracks wherever you go. You don't need to carry your expensive gear; your phone/tablet is just about enough. Works with virtually any DAW after a very simple set up. Ableton + Launchpad 95 script is recommended. This free version gives you access to all 64 buttons on the 8x8 grid, 8 scene launch buttons, 8 buttons to navigate and 7 buttons for transport controls. The Launchpad95 script gives you a step sequencer, scale mode, and many more functions. The Apple Watch extension lets you access about one fifth of the Buttons. This means that you can use the app to control a 3x3 clip launchers, 3 scene launchers, and 4 arrow keys to navigate through your clips. It also can display some of the buttons used for step sequencing, good enough for a little stunt in a live set I'd say. It includes the the "old" colors (red-orange-yellow-green) - if you want to upgrade, Launch Buttons Plus provides you with - full color support (RGB) - 16 more functions buttons (in addition to the 16 you already have) - 16 freely assignable knobs Have fun :)

Screenshots

Knob Lab4 screens
Launch Buttons2 screens

Verdict

The call

The clearest difference is review sentiment: Knob Lab at 85% against Launch Buttons's 38%. Knob Lab also leads on rating (4.3 vs 2.2). Launch Buttons's advantage is in-app purchases (none vs 4) and update cadence (every 2 months vs every 5 months). On price, ads, monetization model 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

Both are free to download. Knob Lab sells 4 one-off in-app purchases. Launch Buttons asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Knob Lab holds the better App Store score, 4.3 against 2.2. Both are backed by a comparable volume of ratings — 12 and 41 respectively. Written reviews point the same way: 85% of Knob Lab's written reviews are positive against 38% of Launch Buttons's.

UpkeepUpdate frequency

Knob Lab ships an update every 5 months, Launch Buttons every 2 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

Scorecard6 real differences · 4 level
Knob Lab versus Launch Buttons: the parameters behind the verdict, then further details
ParameterKnob LabLaunch Buttons
PriceFreeFree
Rating4.3 (12 ratings) — better2.2 (41 ratings)
Positive reviews84.6% of reviews — better38.0% of reviews
Number of ratings1241 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS15.07.0 — better
Further details — not scored
Size66 MB26 MB
Age rating4+4+
DeveloperUri NachmiasXAN Software GmbH & Co. KG

Customer experience

Knob Lab

All ratings12 ratings
Positive83.3%
Neutral8.3%
Negative8.3%
Written reviews13 reviews
Positive84.6%
Neutral0.0%
Negative15.4%

Launch Buttons

All ratings41 ratings
Positive26.8%
Neutral4.9%
Negative68.3%
Written reviews108 reviews
Positive38.0%
Neutral7.4%
Negative54.6%

Bugs and requests

Knob Lab

Not enough reviews yet to summarise bugs or requests.

Launch Buttons

Reported bugs

10 issues
  • App doesn't work for many users
  • Cannot connect to Ableton Live
  • Buttons don't respond
  • Pads don't light up
  • Transport controls perform wrong functions
Show 5 more
  • MIDI messages not recognized by Ableton
  • App crashes or freezes
  • Watch app doesn't sync properly
  • Menu overlay bug
  • Occasional lack of sound/light

Requested features

10 requests
  • Make the app fully functional without payment
  • Improve connection stability
  • Iron out minor glitches
  • Add status indicator or labeled buttons
  • Provide visual feedback when buttons are pressed
Show 5 more
  • Allow users to put their own music on it
  • Add USB support
  • Improve watch app synchronization
  • Fix the menu bug where exit button is unpressable
  • Make the free version more functional

In-app purchases

4 purchases

Knob Lab

One-time4
  • Two Knob Layout$0.99
  • Four/Six Knob Layout$0.99
  • Nine/Twelve knob layout.$0.99
Show 1 more
  • Unlock all layouts$1.99
None

Launch Buttons

No in-app purchases

Questions

Is Knob Lab free?
Knob Lab is free to download, with in-app purchases available.
Is Launch Buttons free?
Launch Buttons is free to download, with no in-app purchases.
Which has better reviews, Knob Lab or Launch Buttons?
Knob Lab is rated higher. Knob Lab averages 4.3 out of 5 from 12 ratings, while Launch Buttons averages 2.2 from 41 ratings.
Do Knob Lab or Launch Buttons have ads?
Neither Knob Lab nor Launch Buttons shows ads.
Which is updated more often, Knob Lab or Launch Buttons?
Knob Lab ships an update every 5 months, and Launch Buttons every 2 months. Most recently, Knob Lab was updated on October 13, 2026 and Launch Buttons on October 7, 2026.

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