One-on-One Live Video Is the Social Format Startups Keep Underestimating

Mobile users spent $150 billion on in-app purchases in 2024, according to Sensor Tower’s State of Mobile 2025 report. That’s up 13% year over year, the fastest growth since 2021. The more interesting number is underneath it: non-gaming apps grew 23%, and the report points out that streaming and social apps posted rapid revenue gains even as growth in time spent slowed.

Read that again as a founder. People aren’t necessarily spending more time. They’re spending more money on the time they do spend. And a lot of that money is going to formats that feel live and personal.

From broadcast to one-on-one

Livestreaming trained a generation of users to pay for presence. Tips, gifts and badges turned watching into participating. But a broadcast still has an audience of hundreds or thousands, and most viewers never get more than a name read out on stream.

The 1v1 video call is the next step in that direction. Both people are on camera, the conversation is private, and the other person’s full attention is the product. Dating apps, language exchange platforms, expert marketplaces and social discovery apps are all converging on the same format for the same reason: it’s the closest a phone gets to sitting across a table from someone.

Why one-on-one monetises differently

Content apps sell access to a library. One-on-one apps sell time and attention, which changes the economics in a few ways.

Pricing tends to follow minutes or virtual currency rather than flat subscriptions, so revenue scales with engagement instead of seats. Retention is driven by people rather than content drops, because users come back to talk to someone specific. And supply is human, which means the hardest operational problem isn’t servers. It’s making sure there’s someone worth talking to on the other side at 2 a.m. in every time zone you serve.

The free tier isn’t optional

Look at what people actually type into search. Queries like live video call free sit next to every paid term in this category. Users expect to try the experience before they pay, and an app that asks for a card on the first screen loses most of them.

The design question is where to put the paywall. Too generous and the free tier cannibalises revenue. Too tight and nobody sticks around long enough to see why the paid version is worth it. The teams that get this right usually give away enough for one good conversation, then charge for more of them.

Trust is the real product

One-on-one video is intimate, and intimacy raises the stakes on safety. Regulators have noticed. In the UK, Ofcom’s children’s safety rules under the Online Safety Act have required “highly effective” age checks on many platforms since July 2025, and self-declared ages don’t count. Ofcom lists methods such as photo ID matching, facial age estimation and mobile network checks as the kind that can qualify.

For a startup, that’s both a cost and a moat. Verification, moderation and fast reporting tools are expensive to build well. They’re also exactly what makes a user willing to turn the camera on in the first place, and they’re hard for a copycat to replicate quickly.

The tech is cheap. The hard parts aren’t.

Ten years ago, shipping reliable real-time video meant building your own infrastructure. Today, WebRTC and a handful of mature SDKs let a small team launch a video call online product in weeks.

That’s exactly why the tech isn’t the moat. What separates the winners is everything around the call: how people choose who they talk to, how quickly bad actors get removed, how the product feels on a patchy mobile connection, and whether users walk away from a conversation wanting another one.

What founders should take from this

If you’re building in social, don’t treat one-on-one video as a feature to add later. It’s a business model with its own pricing logic, its own regulatory checklist and its own retention curve. The money is already moving there. The question is whether your product earns the trust to follow it.