Knob Lab vs Launch Buttons
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Remote DAW control
- USB, WiFi, Bluetooth connectivity
- Virtual MIDI support
- Audiobus integration
- Complex control mapping
- iPad support
- MIDI logger
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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.
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.
- MIDI controller for music production
- 8x8 button grid
- Scene and transport controls
- Step sequencer (with script)
- Scale mode (with script)
- Apple Watch extension
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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
Verdict
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
Both are free to download. Knob Lab sells 4 one-off in-app purchases. Launch Buttons asks for nothing beyond the download.
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.
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.
| Parameter | Knob Lab | Launch Buttons |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (12 ratings) — better | 2.2 (41 ratings) |
| Positive reviews | 84.6% of reviews — better | 38.0% of reviews |
| Number of ratings | 12 | 41 — better |
| Update frequency | Every 5 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.0 | 7.0 — better |
| Further details — not scored | ||
| Size | 66 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Uri Nachmias | XAN Software GmbH & Co. KG |
Customer experience
Knob Lab
Launch Buttons
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
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- 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
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- 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
Knob Lab
- Two Knob Layout$0.99
- Four/Six Knob Layout$0.99
- Nine/Twelve knob layout.$0.99
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- Unlock all layouts$1.99
Launch Buttons
No in-app purchases
Questions
Is Knob Lab free?
Is Launch Buttons free?
Which has better reviews, Knob Lab or Launch Buttons?
Do Knob Lab or Launch Buttons have ads?
Which is updated more often, Knob Lab or Launch Buttons?
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