Go Tall · B2C · height prediction app for teens
Ask every question commenters volunteered, then show the answer after payment
91% of users reach the paywall despite the long onboarding
What they did
What happened
- Stage
- product
In their words
This Stupidly Simple App Makes $100K/Month
Pat WallsCool, simple tech stack. Okay, now, I'm excited to see the app. I like talking about the idea, how you built it, the growth, all that stuff. But now I want to see what this app is. Can you show me the height predictor app that makes $100,000 per month, and give me just a demo of how it works, so that we can see?
MichaelWhat I'm most proud of is the onboarding. Basically, as I'm predicting the height, the users kept on giving like more of their own information to the comment, because they want a more accurate height prediction. And so that just resulted in the onboarding being like super long.
Pat WallsThe more information that you can get, the more predictive of the height you could be.
MichaelExactly. And then the app actually does, in the beginning, it didn't, but it actually pulls a lot of like research papers to actually give the height prediction. So the base is like the CDC data of like, you know, whatever your doctor gives you at the doctor's appointment. But then all these other questions have like links to research studies that we use to adjust your like final height. So this is like a puberty quiz. This will see like where you are in puberty, and that will have a very big effect of like how much you actually are. And this paywall has about like a 91% paywall show rate, despite being pretty long. Yeah, I'm kind of just skipping over everything, cuz I've seen this like a hundred times.
Pat WallsAnd do you have to pay and subscribe for the app to see the the ultimate prediction?
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More from this episode
- Browse Acquire.com for small apps for sale, then build your own versionFirst sale 2 days after launch; now ~$100K/month
- Reply to TikTok commenters' heights with videos predicting how tall they'll getFirst viral format; 10-20 DMs a day asking for predictions
- Post 10 TikToks a day for a month until one format worksFound a repeatable format; knew how many downloads 100K views brings
- Copy your winning video format onto two new accounts and a friend'sAll three accounts blew up, showing the format was teachable
- DM 50 people a day asking them to make your proven, easy videoCreators worked cheaply; with founder content reached ~$3K/month
- Improve your paywall once videos bring steady installsRevenue grew from ~$3K to ~$10K/month, alongside more scaling
- Try more video formats once the first one keeps working~$30K/month by month five
- Put ad money behind the videos that already work organicallyScaled from ~$30K to over $100K/month
- Let the height prediction change weekly as people log sleep, meals and stretches
Tags: long-onboarding, quiz-onboarding, result-behind-paywall