The first prototype of TeenCycle had a streaks counter. It didn't make it past the first week. The social feed, the export-to-PDF, the "celebrate your cycle" affirmations, the optional reminder six times a day, the share-with-a-friend button — none of them made it in either. By the time we shipped, the app was less than a third of what we'd sketched.
This wasn't restraint for restraint's sake. Every feature we left out had two costs we'd been ignoring: it asked the user for attention, and it asked the app for more code to maintain — which means more bugs, more decisions, more reasons for someone to email us at midnight saying something broke.
Here's the list, roughly in order of how long it took us to let go.
The features that didn't make it.
- Streaks. These didn't make it in, because the first thing a teenager would notice on a hard day is that they'd "broken" their streak. Cycles aren't a habit you train; they're a thing that happens.
- Social. A friends list, a "see your cycle align with others" view, a comment thread. No version of any of these felt like it belonged in a private health app.
- Insights with affirmations. "You're more energetic on day 9!" We tested this with three teens. None of them wanted the app to be cheerful at them.
- Push notifications. Even just one — "your period is due in 2 days." Reminders are the most-requested feature we don't ship. The reason: every notification trains you to check the app more. We'd rather you forget about it.
- Account & cloud sync. See the offline-first post. In short: convenience for the user, but only at the cost of having to handle their data ourselves.
What we kept.
Three screens. Two flow states. One tap to log. The app does exactly one thing well, and it's quiet about it. That's the entire promise.
None of the features we left out were bad ideas. Many were good ones. But "good idea" isn't the bar we use. The bar is: does this earn its place in an app that's trying to disappear? Almost nothing does.
If you're building something similar — or just curious about what doesn't ship — feel free to write to us. We're small enough that you'll get a real reply.
