Timecode Tool App
LTC - Art-Net Timecode I/O
$1.99 · Designed for iPad. Not verified for macOS.
Send, receive, view, and convert SMPTE timecode on stage. Generate from a custom start TC, monitor LTC or Art-Net, and route between them — all in one app.
Timecode Tool is a focused utility for live-show technicians who need to
generate, monitor, route, or convert SMPTE timecode on iPad, iPhone, and
Apple Silicon Mac.
Four modes:
GENERATE
• Output LTC audio and Art-Net Timecode driven by system time-of-day, a
free-running 1-hour block, or a custom Start Timecode you type in
(e.g. 02:03:20:15) that free-runs from that point.
• Pick FPS (24, 25, 29.97 NDF, 29.97 DF, 30) including correct SMPTE
drop-frame counting.
• Send to a specific Art-Net destination IP (unicast or broadcast).
TIMECODE VIEW
• A large, glanceable timecode readout for monitoring.
• Choose the source: decode LTC from an audio input, or receive Art-Net
Timecode over the network. Frame rate and lock state are shown live.
ART-NET → LTC
• Receive Art-Net Timecode (UDP 6454) and re-encode it as SMPTE LTC audio
out to your selected output device.
• Latency-compensation slider advances or retards the encoded LTC to align
with downstream devices, with drift tracking and a re-sync control.
LTC → ART-NET
• Decode LTC audio from your selected input device / channel and forward
every frame as Art-Net Timecode to one or more receivers.
• Auto-detects the source frame rate and the SMPTE drop-frame flag.
Cross-cutting features:
• Background-audio capable — keeps generating / decoding when the screen
is locked or another app is foreground (essential for live-show use).
• Audio-session interruption handling: phone calls and Siri don't break
the timecode stream — work resumes automatically.
• Shows your device's IP addresses for quick configuration.
• Works with Class-Compliant USB audio interfaces over USB-C / Lightning
on supported iPad and iPhone models.
Timecode Tool does not collect, store, or transmit any personal data.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, llcheesell Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- llcheesell Inc.
- Size
- 2.6 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © llcheesell Inc.

