Browse Case Studies

9 case studies found

Discord

by Jason Citron

Discord is a social platform founded by Jason Citron in 2015 that evolved from his earlier failed gaming social platform ventures. Originally designed as a digital gathering space for gamers, it has grown to 150 million monthly active users and now serves as a communication hub for diverse communities beyond gaming. The platform represents Citron's successful pivot after two previous business failures.

SaaScommunityfreemiumvia How I Built This

Automattic (WordPress)

by Matt Mullenweg

Matt Mullenweg built WordPress after his employer CNET rejected his pitch for WordPress.com, launching it independently and eventually housing it under Automattic. The platform grew to power over 40% of websites on the internet, with Automattic reaching nearly 2,000 employees and a $7 billion valuation through a freemium model emphasizing free, customizable code.

SaaSproduct-led-growthfreemiumvia How I Built This

Blogilates

by Cassey Ho

Cassey Ho built Blogilates into a multi-million dollar fitness brand through free workout content on YouTube, accumulating over a billion views. She expanded beyond digital content into POPFLEX apparel, Target product lines, and Pilates certification programs, becoming a prominent figure in the creator economy.

Contentcontent-marketingfreemiumvia How I Built This

Twitch

by Emmett Shear

Twitch started as a pivot from Justin.tv in 2011, transforming into a dedicated video game streaming platform founded by Emmett Shear and Justin Kan. By directly engaging with streamers and providing features they requested—including revenue opportunities, fan clubs, and customizable emoji—Twitch built a thriving community. The platform grew to 31 million daily visitors streaming trillions of minutes annually before being acquired by Amazon in 2014 for just under $1 billion.

Platformcommunityfreemiumvia How I Built This

Roblox

by David Baszucki

Roblox is a platform launched in 2006 by David Baszucki and Erik Cassel where users can play millions of different games across virtual worlds, create their own games, and connect with others. During the pandemic in 2020, the platform became a major social hub for US kids, and the company is now valued at over $28 billion.

Platformviralfreemiumvia How I Built This

Blogilates / POPFLEX

by Cassey Ho

Cassey Ho built Blogilates into a billion-view YouTube fitness content empire, defying cultural expectations around career fulfillment. She leveraged her creator platform to expand into multiple revenue streams including the POPFLEX apparel brand, Target product lines, and Pilates certification programs, creating a multi-million dollar portfolio in the creator economy.

Contentcontent-marketingfreemiumvia How I Built This

Duolingo

by Luis von Ahn

Duolingo grew from Luis von Ahn's CAPTCHA technology—originally created to solve Yahoo's spam problem—into a revolutionary language learning platform. By gamifying language education and leveraging a freemium model, Duolingo became a publicly-traded company with a $9 billion market cap, demonstrating how a simple idea can evolve into a global educational phenomenon.

SaaSproduct-led-growthfreemiumvia How I Built This

Substack

by Chris Best, Hamish McKenzie

Substack was founded by Chris Best and Hamish McKenzie to give writers direct access to their audiences through paid subscriptions, eliminating the need for legacy publications or advertisers. Despite early skepticism, the platform has grown to over 35 million active users, with some creators earning upwards of $500,000 annually while many offerings remain free.

SaaSproduct-led-growthfreemiumvia How I Built This

Craigslist

by Craig Newmark

Craigslist started in 1995 as a simple email list Craig Newmark created to share local tech meetups with San Francisco friends. The platform grew organically into one of the internet's most enduring brands, with hundreds of millions in revenue and fewer than 50 employees, by prioritizing simplicity, community, and minimal monetization over aggressive growth tactics.

Marketplaceword-of-mouthfreemiumvia How I Built This