Quizlet

Teachers drive student signups even though they aren't most subscribers. Teachers were not the bulk of Quizlet's paying subscribers, but they drove viral student acquisition, one of its two core flywheels alongside SEO.

Edward Tian saw the same pattern at GPTZero, where teachers spread the product to students.

Subversive

Every study set users create feeds an SEO loop that brings in new users. Set creation fed an SEO loop behind more than 70% of Quizlet's acquisition, and SEO plus word of mouth together drove over 90% of it.

Because nearly all users arrived organically, serving a mostly non-paying base gave Quizlet a moat and a cheap blended CAC.

Subversive

Never paywall the feature that powers your core growth loop. Quizlet protected content creation and stayed generous to unregistered users, so the set-creation SEO loop kept running, and it leapfrogged StudyBlue after about 2015 or 2016.

Charge for features that don't affect how new users arrive and activate. Discord charged for power-user features like larger file uploads and custom emojis, and Photomath monetized something other than scans, reaching roughly a 100x outcome, while a rival that capped scans killed its loop and sold for perhaps 10x less. "You don't want to disrupt that flow."

Subversive▶ 29:19

Quizlet bought Coconote early, months after it launched. Quizlet reached out when Coconote was only a few months old, and the deal closed in December after about a year of talks, roughly 18 months after Coconote's launch.

Coconote gained a user base an order of magnitude larger and room for bigger bets like a media arm. Quizlet's nearly 20-year brand is cited as a moat.

Superwall

At Quizlet's scale, single paywall experiments are worth about $1M a year. As one of the biggest premium consumer apps, Quizlet runs many paywall experiments that can each add about a million dollars of revenue a year.

Superwall

Every study set users create feeds an SEO loop that brings in new users. Set creation fed an SEO loop behind more than 70% of Quizlet's acquisition, and SEO plus word of mouth together drove over 90% of it.

Because nearly all users arrived organically, serving a mostly non-paying base gave Quizlet a moat and a cheap blended CAC.

Subversive▶ 33:22

Freemium only pays off when free users bring in new users. Hard paywalls convert 10.7% of installs to paid versus 2.7% for freemium, with nearly identical one-year retention, yet Quizlet's freemium model works because free users drive SEO and word of mouth.

Freemium has a broader top of funnel and a conversion window that never closes, but if free users never convert, see ads, or drive organic acquisition, "otherwise what you're doing is just a charity." With AI costs, a hard paywall is the easier path to profit for apps without that loop.

Subversive▶ 33:22

Quizlet bought Coconote early, months after it launched. Quizlet reached out when Coconote was only a few months old, and the deal closed in December after about a year of talks, roughly 18 months after Coconote's launch.

Coconote gained a user base an order of magnitude larger and room for bigger bets like a media arm. Quizlet's nearly 20-year brand is cited as a moat.

Sub Club

At Quizlet's scale, single paywall experiments are worth about $1M a year. As one of the biggest premium consumer apps, Quizlet runs many paywall experiments that can each add about a million dollars of revenue a year.

Sub Club

Coconote kept talks confidential and kept growing during the deal. The founders hired an investment banker to run the process, told neither the team nor, in detail, their families until close, and revenue roughly doubled during the process.

They kept focus on building because lost focus shows up in negotiations, and deals tend to fall apart in the last week. "I think a great leader shelters other people."

Sub Club▶ 1:00:05