CramClub just crossed 1,000 active students. I want to be honest: I wasn't sure we'd get here. When I launched in October, I didn't know if anyone would care about yet another study app built by one person. Turns out some people did. Here's what I've learned along the way.
What Surprised Me
Students study more on weekends than weekdays. I assumed weekday evenings would be peak study time — after school, before bed. Wrong. Our busiest hours are Sunday afternoon and Saturday morning. Apparently students use weekdays for classes and homework, then catch up on independent studying over the weekend. This changed how we time things like quest resets and league cutoffs.
The social features matter more than I expected. I built study battles as a fun side feature. I thought the core value was the study guides and flashcards. But battles and leagues drive an outsized share of daily engagement. When a student challenges a friend, both of them study. The competitive element isn't a distraction from learning — it's a catalyst for it.
Teachers found us without any marketing. I didn't build teacher tools until students started asking for them. But the first teacher who found CramClub told her colleague, who told three more, and suddenly I had a dozen classroom feature requests in my inbox. Word-of-mouth in schools is powerful. One enthusiastic teacher can onboard an entire department.
What I Got Wrong
I overthought the onboarding. The first version of CramClub dropped you into the library with no guidance. It was overwhelming. Students would sign up, stare at 50+ study guides, and leave. The onboarding wizard we added — just four simple steps to set your goals and pick your subjects — increased first-session completion rates dramatically. I should have built it from day one.
I underestimated the importance of mobile. I built CramClub as a web app and assumed students would use it on their laptops. Nope. Over 70% of sessions are on phones. Students study between classes, on the bus, in waiting rooms. Every design decision now starts with mobile. If it doesn't work on a phone, it doesn't work.
The free tier was too restrictive at first. I was worried about giving away too much. The original free tier only let you preview the first section of each study guide. Almost nobody converted. When I opened up the full guides and restricted only the AI-powered features (uploads, tutor) to paid plans, conversion rates tripled. Turns out the best way to get someone to pay is to let them fall in love with the product first.
What the Numbers Say
Some stats from our first 1,000 students that I find interesting:
- Average streak length: 12 days (the top 10% average 45+ days)
- Most popular subject: Literature, followed by Math, then Languages
- Average daily study time: 18 minutes (but the distribution is bimodal — most students do either 5-10 minutes or 30+ minutes, with little in between)
- Referral rate: 23% of new signups come from existing users sharing their link
- Most active time: Sunday 2-5pm EST
What's Next
Hitting 1,000 students isn't the goal — it's the proof that the thing I'm building matters to real people. Here's what I'm focused on next:
- More subjects and deeper content. Our science and history tracks are still early. I want them to be as comprehensive as our literature library.
- Better mobile experience. I'm investing heavily in mobile-first design for every new feature.
- Community features. Study groups, shared flashcard decks, and collaborative note-taking. Studying alone works, but studying together works better.
- International expansion. We have students in 15 countries already, mostly from organic search. I want to build content and features that serve them intentionally, not accidentally.
Thank you to everyone who's been part of this so far. If you signed up early, sent feedback, reported a bug, or told a friend — you're the reason CramClub exists. I don't take that for granted.
Back to building.
— Peter