Burner · B2C · second phone number app
Add a white-label VPN inside the main app's premium plan
Drove a lot of premium-tier growth, but cost more to build than it should have
What they did
What happened
- Stage
- mature
- Effort
- Significant engineering investment across mobile and desktop
In their words
Pivots, Funding, and Building Apps That Last – Greg Cohn, Burner
Greg Cohn… solving that problem. But sometimes those problems are big. We're still a relatively small team. We're about 30 people, and that's healthy, but it's a complex app. It's mature. There's a lot to do across core and product and growth and operational stuff. And so, the biggest single feature we launched that was an expansion of the product portfolio is in the first quarter of 2025, we launched a VPN. And VPN is its own category on the app store.
Greg CohnYou've probably studied that in detail here and there's PE stage companies in the VPN space and there's a lot of small ones. And we didn't necessarily set out to take over that category so much as to broaden the offering of Burner by building that in. There's a like-minded customer who's concerned about their privacy to some degree or looking to hire tools that give them more control really ultimately over how they're seen and how their identity is understood on the internet. So, you can be who you want to be and be where you want to be with a VPN. So, that particular product we did with a partnership and it's a white label partnership as a provider.
Greg CohnAnd when we were able to integrate that, it was still a pretty significant investment for us. And we had to make that investment without... It wasn't easy to validate that need. So, it ended up being an expensive investment. It's driven a lot of value and growth of our premium tier, of our premium skew. But for us, it represents an example of a buy, build, partner type of portfolio approach, right? So, we decided to partner in that particular case, and it was the build aspects of even in a partner strategy were still expensive, right? But if we had decided to go become a VPN company and build that from scratch and build all the expertise necessary for that.
Greg CohnAnd by the way, that product exists in the Burner app and there's a desktop version of it on Mac and Windows, right? So, it's a 360 product. It's an expensive investment.
Get tactics like this every Monday
New tactics from the week's founder interviews, each linked to where it was said.
More from this episode
- Test a throwaway phone number by posting it in real Craigslist adsFlood of calls and 10-100x the response of the old app; confirmed a real problem
- Demo the unreleased app to people at SXSW and collect a waitlistNew York Times interview and a panel slot; $50K revenue on launch day
- Charge $1.99 upfront and price credit packs to cover phone costsAbout $50K revenue on launch day
- Drop the $1.99 download price once there is money to cover free users
- Try a freemium version of an app where every free user costs moneyDidn't scale without lots of capital; stayed a premium, paid-first app
- Skip the next VC round and run the app at breakeven insteadBreakeven or profitable for 6-8 years, grew past $10M a year
- Add a monthly and annual plan with unlimited texts, calls and photosBiggest single jump in revenue in company history; subscriptions now 90%+ of revenue
- Phase out one-off credits so everyone goes through a subscriptionFairly high churn from short-term users; founder now thinks credits might have fit them better
- Capture people already searching for a second phone number instead of running brand adsSeveral million downloads a year of high-intent users; press-driven users didn't convert
- Add caller lookup for unknown numbers to the premium planVery popular and a driver of premium upsells; founder didn't expect it to win
- Offer 8 plans so short-term and long-term users pick what fits
- Let people choose on the paywall whether to take a free trialVery positive A/B test result; no numbers given
- When someone deletes their number, offer them a new oneRetains some users into a second number; 20-30% of new subs are returning users
- Launch separate robocall-blocking and business-number appsNeither got real traction; one was killed by an Apple feature
- Use paywall tools so the product team can launch tests without engineersFrom 1-2 paywall tests a month to several times that; about 1 in 4-5 wins
- Judge paywall tests by projected customer lifetime value from day-8 and day-30 data
- Buy small apps that fit your users' needs and sell them inside your main app
Tags: ios, android, mac, windows, white-label, vpn, bundle, premium-tier