Relay vs VoicePing in 2026

Q: Does OperatorLink work on iPhone?

OperatorLink runs in a phone browser with no app install . A phone can add it to its home screen as a standalone app . On Android browsers, signals such as STOP make the phone buzz, but iPhone Safari ignores the buzz . A crew with iPhones should check whether the on-screen alert is enough for its needs.

Compare Relay and VoicePing for a crane crew: what each one does, its published prices, setup on a jobsite, and how to choose between them.

By 2Dig · 2026-10-18

2Dig is published by the makers of OperatorLink, which is compared here alongside other tools.

A crane crew needs a way to pass a signal or a message to the whole crew while the crane moves. Relay describes itself as the system of action for physical operations ^[1], and its page counts nearly 10,000 sites running it ^[1]. VoicePing offers on-premise server deployments for customers with their own data center ^[2] and provides a 99.95% Service Level Agreement ^[2]. Neither tool's cited sources describe signals on a jobsite, so a crew with that need should check it directly with each one. OperatorLink shows STOP, HOLD and SLOW to the jobsite crew and passes button presses, chat and voice between phones in a browser ^[3]. Relay's cited sources give no price, and VoicePing prices its Enterprise plan by contacting sales ^[2].

Option	Own fee	Card fee
Relay	not published	not published
VoicePing	Enterprise plan priced by contacting sales for an estimate ^[2]	not published
OperatorLink	Free to use; no paid plan is built yet ^[3]	not published

The short answer

What Relay, VoicePing is built for

The facts gathered for this page describe a small part of Relay and VoicePing, all taken from their own pages. Relay's page calls it the system of action for physical operations ^[1], and counts nearly 10,000 sites running Relay ^[1] and 7 thousand customers ^[1]. VoicePing offers on-premise server deployments for customers with their own data center ^[2] and provides a 99.95% Service Level Agreement to guard against downtime ^[2]. Those facts do not describe how either tool handles signals, stops or voice on a jobsite, so this page does not say what they do for those jobs. The facts gathered do not give a price for Relay or for the VoicePing Enterprise plan, which is quoted by contacting sales ^[2]. A crew should check with each tool what it does for the jobsite needs it cares about before relying on it.

What OperatorLink is built for

OperatorLink is made by the team that publishes this site. For a crane crew member, it shows STOP, HOLD and SLOW to the jobsite crew and passes button presses, chat and voice between phones in a browser ^[3]. A STOP releases every held direction on every phone and shows a full-screen alert to everyone else ^[3]. HOLD and SLOW stay on for everyone in the jobsite and are cleared when the last person leaves ^[3]. Holding a move button keeps sending that move to the other phones, and if the move stops arriving for 2 seconds, the other phones drop it ^[3]. One-tap radio-style calls such as Go Ahead, Copy That and All Clear are sent as chat messages ^[3]. Anyone who joins can take part in a voice call run from the phone browser ^[3].

Pricing and fees

Relay's cited sources give no price, so its fees are not published here. VoicePing prices its Enterprise plan by contacting sales for a price estimate ^[2], and no other VoicePing plan price is covered by the facts gathered for this page. OperatorLink is currently free to use, and no paid plan is built yet ^[3]. The card fee is not published for any option here, so a crew that expects to pay one should ask each provider before choosing. ^[3]

Setting it up on a jobsite

OperatorLink runs in a phone browser with no app install ^[3]. The person who starts a jobsite shares a link or QR code, and the crew joins from it ^[3]. Phones can add it to their home screen as a standalone app ^[3]. A jobsite link stops working 12 hours after the first person joins ^[3], and a jobsite with nobody in it is wiped after 3 idle hours ^[3]. Button presses, chat and voice pass between phones in the browser ^[3]. For Relay and VoicePing, the facts gathered for this page do not describe how a crew is added or how signals pass on a jobsite, so a crew should confirm that setup with each provider directly before a shift.

Things to check before you choose

Do you want to run the service inside your own data center? Check how the on-premise deployment of VoicePing works on your own servers before committing to it ^[2]. What written uptime promise do you need, and does the provider offer a Service Level Agreement that covers your jobsite hours ^[2]? Does the crew use phones that give a buzz alert? On Android browsers a signal such as STOP makes the phone buzz, but iPhone Safari ignores the buzz, so check whether that matters for your crew ^[3]. Does a jobsite link that stops working 12 hours after the first person joins suit your shifts ^[3]? Which signals does the crew need on a jobsite, and how will you test that each tool passes them before a lift?

How to choose

If you want to run the service inside your own data center, VoicePing's page describes on-premise deployments ^[2]. If you want a written uptime promise, VoicePing offers a 99.95% Service Level Agreement ^[2]. If you want a tool whose cited sources reach many sites and customers, Relay counts nearly 10,000 sites running it ^[1] and 7 thousand customers ^[1]. If the crew needs STOP, HOLD and SLOW to reach every phone, OperatorLink's sources describe signals that reach the whole jobsite ^[3] ^[3]. If you want a free start with no paid plan, OperatorLink is currently free to use ^[3]. A crew that needs signals and also wants on-premise control or a written uptime promise should check both against both needs, because no single source here covers both.

Frequently asked questions

Is OperatorLink free to use?

OperatorLink is currently free to use, and no paid plan is built yet ^[3]. The sources cited on this page give no other price for it. The card fee is not published for any option here, so a crew that expects to pay one should check before choosing. Prices can change, so confirm the current terms with the product before a shift.

What does Relay's own page say Relay is?

Relay's page calls it the system of action for physical operations ^[1], and counts nearly 10,000 sites running Relay ^[1] and 7 thousand customers ^[1]. The facts gathered for this page give no Relay price. The facts gathered do not describe how Relay handles signals on a jobsite, so a crew with that need should confirm it with Relay directly.

Is VoicePing's Enterprise option free?

The facts gathered for this page say VoicePing prices its Enterprise plan by contacting sales for a price estimate ^[2]. No free trial or monthly price for that plan is covered by the facts here. The facts gathered for this page give no VoicePing plan price beyond the Enterprise quote, so check pricing directly with VoicePing before choosing a paid option.

Does OperatorLink work on iPhone?

OperatorLink runs in a phone browser with no app install ^[3]. A phone can add it to its home screen as a standalone app ^[3]. On Android browsers, signals such as STOP make the phone buzz, but iPhone Safari ignores the buzz ^[3]. A crew with iPhones should check whether the on-screen alert is enough for its needs.

How long does an OperatorLink jobsite link last?

A jobsite link stops working 12 hours after the first person joins it ^[3]. A jobsite with nobody in it is wiped after 3 idle hours ^[3]. The person who starts a jobsite shares a link or QR code, and the crew joins from it ^[3].

OperatorLink is currently free to use, and no paid plan is built yet. ^[3]

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