Slybroadcast

Plans and prices

Every plan, in full

On the record

AI personalization

Voicemail Personalization can insert a recipient's first name using the sender's voice or text-to-speech.slybroadcast.com · read 15 Oct 2026

Analytics

Campaign delivery reports track outreach, and Callback Numbers enable callback reporting and call forwarding.slybroadcast.com · read 30 Sep 2026

API

API access is included free with each account; API submissions use POST and can report call status through an optional webhook URL.slybroadcast.com · read 30 Sep 2026

API availability

API access is included with every Slybroadcast account according to the product page.slybroadcast.com · read 15 Oct 2026

API hosting requirement

The API documentation requires a hosting provider with server scripting or CGI support such as ASP, PHP, Perl or JSP.slybroadcast.com · read 15 Oct 2026

API limit

The API documentation sets a maximum of 10,000 destination phone numbers per submission.slybroadcast.com · read 30 Sep 2026

API status callbacks

Developers can receive call status updates through a webhook.slybroadcast.com · read 15 Oct 2026

API transport

The documented API accepts HTTP POST form submissions to a MobileSphere gateway endpoint.slybroadcast.com · read 15 Oct 2026

Callback and texting

Callback reporting and automated follow-up texts are available with a purchased Callback Number.slybroadcast.com · read 30 Sep 2026

Callback numbers

A callback number can forward return calls to any chosen number and supports callback analytics.slybroadcast.com · read 15 Oct 2026

Caller ID

Campaigns can display a caller ID number selected by the sender.slybroadcast.com · read 15 Oct 2026

Campaigns

Users can record by phone or upload audio, choose uploaded contact lists, and send immediately, in batches, or on a schedule.slybroadcast.com · read 30 Sep 2026

Company facts

LinkedIn lists Slybroadcast as privately held, founded in 2015, headquartered in Boston and employing 11–50 people.linkedin.com · read 15 Oct 2026

Company identity

Slybroadcast is identified as a service of MobileSphere LLC.slybroadcast.com · read 15 Oct 2026

Contact lists

Campaigns can use uploaded contact lists that are managed inside the account.slybroadcast.com · read 15 Oct 2026

Coverage

The service says it reaches mobile and landline phones in the United States and Canada.slybroadcast.com · read 30 Sep 2026

Data protection

The privacy policy says contact data is stored securely and encrypted, and that customer lists are not sold or marketed.slybroadcast.com · read 15 Oct 2026

Delivery reporting

The dashboard provides real-time delivery reports, while callback reporting requires purchasing a callback number.slybroadcast.com · read 15 Oct 2026

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