Wishbone, a polling app for teen girls, says it has 3.1M MAUs just 4 months after launching
There's a 4-month-old app that lets you poll your friends — and 3 million teen girls already love it — Teens are spending a lot of time on their phones and they're still bored.
Context & Ripple Effects
Wishbone is the first data point in what the related coverage shows becoming a repeating cycle: a lightweight, low-stakes app built for teenage girls spiking fast on mobile. Its 3.1M MAUs four months post-launch convinced backers enough that parent Mammoth Media later raised a $13M Series A led by Greylock, keeping both Yarn and Wishbone funded.
The same demographic kept producing these spikes after Wishbone — Facebook bought the anonymous compliment app tbh in 2017, Squad raised a seed round in 2019 with 70% of its users being teenage girls, and by 2022 Gas hit 500K+ downloads within weeks of launch while BeReal's MAUs jumped 315% with Gen Z.
First-order effects
- Teen girls gain a new always-on engagement loop — quick polls of friends — giving Mammoth Media an audience at a scale most four-month-old apps never reach.
- Established social apps competing for the same teen attention face a fresh rival whose format costs almost nothing to use.
Second-order effects
- Investors treat teen-girl social as its own fundable category: Mammoth's Greylock-led Series A shows Wishbone-style traction converts directly into capital.
- Acquirers start shopping the category instead of building it — Facebook's later purchase of tbh shows incumbents buying proven teen apps rather than cloning them.
Third-order effects
- If the pattern holds, every few years a small teen-first app spikes on authenticity or positivity, gets funded, and either gets acquired by a platform giant or fades — with the platforms structurally outsourcing their youth-product pipeline to startups.
- The recurring success of girl-heavy apps like Wishbone, Squad, and Gas suggests teen female users are the leading indicator for where consumer social goes next, ahead of the broader Gen Z wave BeReal rode in 2022.
The trend: Teen social apps repeatedly spike from nowhere and either get absorbed by the major platforms or set the template for the next Gen Z wave, making teen girls' adoption the sector's earliest demand signal.