On Tuesday, inbound marketing company HubSpot launched Signals as a mobile app for iOS and added Brian Balfour as its new vice president of growth.

HubSpot CEO Dharmesh Shah first announced Signals, its email notification product for sales teams, at the company’s annual INBOUND event in August. Since then, 40,000 sales and service reps around the world have used HubSpot’s spin-off product to manage their connections efficiently and seal deals.

Signals’ app, which is integrated with Salesforce and HubSpot, sends push notifications when prospects are checking out and interacting with their emails, allowing salespeople to respond to hot leads in real-time. The iOS app is HubSpot’s first product push beyond the web. Given Signals’ success thus far and the company’s reach, this might mark a big, new market.

The launch of Signals’ iOS app shows that HubSpot is up to much more than inbound marketing these days. Add growth-hacker Balfour to the leadership team, and you can’t help but be curious as to what the the orange sprocketed-company has in the works.

Balfour worked most recently as the Entrepreneur in Residence at Silicon Valley-based Trinity Ventures. Though he’s just come off a

Brian Balfour

Californian stint, HubSpot’s newest leader has deep East Coast roots. In 2007, Balfour co-founded social game distribution company Viximo (acquired by Tapjoy). Then, in 2011, he was part of the founding team behind digital textbook Boundless Learning.

“Brian is an experienced entrepreneur and leader in helping companies fuel extensive growth. We are so ecstatic to have him as part of our team, and look forward to taking Signals to the next level in terms of growth and adoption worldwide in the upcoming year,”  Mark Roberge, Chief Revenue Officer of Inbound Sales at HubSpot, told BostInno via email. “Brian’s arrival plus the launch of the mobile app represent two exciting milestones for Signals’ growth moving forward–it’s going to be a big year for our team.”

In the end of February 2014, HubSpot began its IPO process and started working with Morgan Stanley on the deal. As rumors surrounding HubSpots’ public offering rage on, and news of both the new Signals’ offering and strategic hire of Balfour further fuel the fire.

Image via HubSpot/Twitter