OHB
OHB app icon
Mac app for OBS Studio

OBS tally for your
Hollyland tally system.

The camera on program lights up red, the preview camera green – right at your camera operators. No switcher, no extra hardware.

3-day free trial · then €2.99/month or €29.99/year · cancel anytime

OBS · Scenes
Hollyland · Camera operators

Click a scene – this is how OHB switches your Hollyland tally. The “Interview” scene shows two cameras; the order of your mapping decides which one turns red.

What OHB does

OHB does exactly one thing: it connects OBS Studio to your Hollyland system – reliably, even in long productions.

Red and green

Program scene = red. In OBS Studio Mode, the preview scene = green as well.

By source or by scene

Map OBS sources to cameras – including nested scenes and groups. Hidden sources don’t count.

Reconnects by itself

OBS crashed or Wi-Fi dropped? OHB reconnects automatically. After 2 seconds without OBS, the tally switches off to be safe.

Rename without breaking

Rename a source or scene in OBS and OHB updates the mapping automatically.

Runs in the background

Close the window, the tally keeps running. Status and start/stop in the menu bar – with optional autostart.

Demo mode

Test your Hollyland connection without OBS and without a subscription: OHB simulates scene changes and sends real tally.

Setup

OBS and Hollyland stay as they are – OHB simply sits in between.

Enable OBS

In OBS, enable the server under Tools → WebSocket Server Settings. If OBS runs on the same Mac, keep the host 127.0.0.1.

Map your sources

In OHB, click Connect & Load Sources and give each camera source from OBS a Hollyland camera number.

Connect Hollyland

In the Hollyland base station, enter your Mac’s IP address with port 9990 as tally source – OHB shows you the address. Start the bridge, done.

Pricing

3-day free trial. Cancel in your App Store settings before it ends and you pay nothing.

Monthly

€2.99
per month
Cancel monthly
SAVE 16%

Yearly

€29.99
per year · ≈ €2.50/month
Almost 2 months free vs. monthly
All featuresUpdates for new OBS versionsEmail supportDemo mode always free

Prices in euros. The App Store shows the price in your local currency.

Requirements

All devices must be on the same network.

Mac
macOS 14 Sonoma or later · Apple silicon and Intel
OBS Studio
Version 28 or later (obs-websocket 5 built in)
Hollyland
Base station with tally via Videohub protocol
Network
Ethernet or Wi-Fi, TCP port 9990 reachable

Only have a Windows PC? Use MARTINI´s Atem Hollyland Bridge (AHB) instead – it brings OBS and Blackmagic ATEM tally to your Hollyland system on Windows and macOS.

FAQ

Anything else? Email info@concierge-martini.de.

Does OBS have to run on the same Mac?

No. OHB connects to OBS over the network. If OBS runs on another computer, enter its IP address as host.

Why is green never lit?

OBS only has a preview scene in Studio Mode. Turn it on in OBS and enable “Send green tally (preview)” in OHB.

Several cameras are visible in one scene – which one turns red?

Hollyland knows exactly one red and one green camera at a time. The source highest in your mapping wins – reorder it by drag and drop.

Why does the tally switch only at the end of a transition?

OBS reports a program change only once the transition has finished. OHB switches the moment that report arrives.

What happens if OBS crashes?

OHB rides out short dropouts. If OBS is gone for more than 2 seconds, OHB switches all tallies off so nobody wrongly sees “live” – and reconnects automatically once OBS is back.

How do I cancel?

Through your Apple ID: in the app under “Subscription” → “Manage or Cancel Subscription”, or in your Mac’s App Store settings. The subscription stays active until the end of the paid period.

I use a Blackmagic ATEM or Windows.

For that there is MARTINI´s Atem Hollyland Bridge – with ATEM and OBS support for macOS and Windows.

Does OHB collect data?

No. OHB only talks to OBS and your Hollyland base station on the local network. No account, no tracking, no connection to our servers. Apple handles the subscription.

Try OHB

3-day free trial. With demo mode you can check beforehand whether your Hollyland system receives the tally – no subscription needed.