Loom

Loom is an async video messaging tool that turns every screen recording into an instantly shareable link. Its stories share one through-line: the founders killed a marketplace that was not working, kept the recording behavior people actually loved, and made the product's core output (a link anyone could open) do the distribution, acquisition, and selling that a marketing and sales org would normally do.

Virality: distribution baked into the core action

The problem. A recording tool with no sales budget needs a way to reach new users that does not depend on paid acquisition. For Loom, every recording was made to be sent to someone else, so the question was whether that unavoidable act of sharing could be turned into growth rather than left as neutral file transfer.

The approach. Loom made the output a shareable link by default: the moment a recording finished, the creator had a URL to paste into Slack, an email, or a doc, and every recipient who opened it landed on a Loom-branded page with a prompt to record their own. It layered in a "who viewed your video" notification, echoing LinkedIn's engagement hook, so senders came back to see who had watched.

How it solved it. This made the viral coefficient a property of the core action, not of a bolted-on referral program: you could not use Loom without exposing a non-user (the viewer) to it, and the viewer's natural next step (reply with their own Loom) turned them into a sender. The loop drove growth from roughly 1.8 million users in early 2020 to 14 million by late 2020 across more than 200,000 companies, overwhelmingly by word of mouth rather than paid channels.

PMF: fit found by subtraction

The problem. The founders (Joe Thomas, Vinay Hiremath, and Shahed Khan) had built Opentest in 2015, a two-sided user-testing marketplace where testers recorded video reviews of websites. It failed to gain traction and partially flopped on its own Product Hunt launch, and the team was running low on runway.

The approach. Rather than iterate on the marketplace, they subtracted everything except the one component that had pull: the screen-and-voice recording primitive. They stripped it down to a standalone Chrome extension, relaunched as Openvid in June 2016 (renamed Loom later that year after a trademark conflict), and let the recording behavior stand on its own.

How it solved it. The signal was immediate: the relaunch hit number one on Product Hunt and drew 3,000 users in 24 hours, more than the previous six months on the marketplace combined, and roughly 10,000 within three months. Fit was not designed into a new market; it was uncovered by cutting away the parts of the old product users never wanted.

GTM: the product is the go-to-market

The problem. Loom was giving away a free recording tool at a time when it was, by the founders' account, about two weeks from running out of money. It could not afford a traditional sales motion to gate or drive adoption, and enterprise-style outbound would have added friction to a product whose whole appeal was speed.

The approach. It went all in on product-led growth with no sales team gating adoption: the free product itself acquired, activated, and retained users, and the same shareable-link loop that fueled virality also carried Loom into new companies bottom-up, one recipient at a time. When COVID-19 hit in 2020, Loom removed recording limits on the free tier and temporarily unlocked premium features, meeting the surge of newly remote teams looking for async communication.

How it solved it. The pandemic move produced roughly 8x user growth with essentially zero ad spend, and the PLG model carried Loom to about 25 million users by its 2023 acquisition. Distribution and product were the same thing, which is exactly what let the company scale users far faster than a sales-led competitor could.

Pivots: extracting the loved primitive

The problem. By mid-2016 Opentest was clearly not working as a marketplace, and the team faced the classic crossroads: keep grinding on the two-sided model they had raised money to build, or abandon it for the one piece that showed life.

The approach. They pivoted entirely, discarding the user-testing marketplace and rebuilding around the screen-recording tool as a Chrome extension launched in June 2016. Each subsequent step stripped complexity rather than adding a new market: they simplified toward what already worked.

How it solved it. The pivot converted a failing marketplace into a product with a self-propelling growth loop, and the trajectory that followed (from a near-death startup two weeks from insolvency to $203 million raised, a $1.5 billion valuation in May 2021, and a $975 million acquisition by Atlassian announced October 12, 2023) traces directly back to that decision to extract the loved primitive and drop everything else.