TeenCycle in one line.
A private, fully offline period tracker built for teens by a mom and her teenage daughter — no account, no cloud, no subscription, and nothing it can sell.
The story.
It started at a kitchen table, not a boardroom. Laura and her teenage daughter, Mia, went looking for a period app the two of them could trust. They expected to be done in ten minutes. Instead, every tracker wanted something first — an email and a login before the first entry, or $40 to $150 a year for something that behaved like a social platform, with feeds, streaks, and a steady stream of notifications. Several asked a young teen, on day one, whether she was sexually active. For a period app.
So the two of them stopped looking and started listing — not what an app could do, but what it should. It should log a day in one tap. It should never ask a young teen a question that isn't its business. It should keep everything on her phone, where no company, not even the one that made it, could see it. And it should cost one fair price, once, and nothing in it ever selling to her again.
Mia and Laura designed that app screen by screen. Laura's husband is the developer; he built exactly what they specified, and nothing they didn't. The story is not "a dad built an app for women" — it's a mom and a daughter who designed the tool they couldn't find, and the family that built it for their own first.
TeenCycle is not a startup with investors to answer to or data to sell. It is a family that decided every feature had to earn its place — and that the longer, more honest list was the one of things to leave out.
Boilerplate copy.
Cleared for publication — select a block or use the copy button.
TeenCycle is a private, fully offline period tracker built for teens by a mom and her teenage daughter — no account, no cloud, no subscription, and nothing it can sell.
TeenCycle is a private period tracker made for teenagers and built by a family. It does the one job a tracker should — log a period and estimate the next one — and nothing else. Everything stays on the phone: no accounts, no cloud, no ads, no analytics. Free for seven days, then $9.99 once, with no subscription. Available on iPhone and Android. Made by Katuk LLC.
Fast facts.
The essentials, in one place. Select any line to copy it.
What makes it different.
Built by a family, for families
A mom and her teen daughter designed it; the dad built it. Not a corporate health app.
No invasive questions
It never asks a young teen anything that isn't a tracker's business — no sexual-activity questions to start logging.
No tracking, ever
Private by architecture, not by policy. There is nothing on the company's end to leak, sell, or hand over.
One honest price
Free for seven days, then $9.99 once. Never a subscription.
In their words.
"We're not a company with data to sell. We're a family that built the thing we wished existed, for our own daughter first. If we can't see it, we can't sell it — and we can't sell what we don't have."
— Laura, co-founder"I didn't want an app that wanted to be my friend. I just needed to know when my period was probably coming."
— Mia, co-founderWhat the app is.
The app is deliberately small. It opens to three screens:
Today — where you are in your cycle, with a single estimate of when the next period is likely to begin.
Calendar — logged days in terracotta, likely days in a paler clay. Tap a day to log or edit.
Settings & privacy — a warm dark mode, a one-tap export, and the privacy promise the rest of the app keeps.
Logging a day takes a single tap. Streaks, mood logs, community feeds, push notifications, in-app ads, and account creation were all left out on purpose.
Privacy in brief.
TeenCycle is private by architecture, not by policy. A privacy policy is a promise; this is the absence of anything to promise about. There is no account, no email, no cloud, no server, no analytics, and no third-party trackers. Everything a user logs lives on the device, and only on the device. There is nothing on the company's end to leak, sell, or subpoena — because there is nothing on the company's end at all. Deleting the app deletes the data.
What TeenCycle does not have:
- No account. No email, no password, no sign-up, no phone number.
- No cloud. No server stores the data. No backups the company can read.
- No analytics. No usage tracking, no event logging, no tracking pixels.
- No third-party trackers or SDKs feeding data to ad networks or data brokers.
- No ads. Nothing in the app is selling the user, or selling their attention.
- No location access.
- No social layer. No feed, no DMs, no comments, no profile, no links out — nothing inside the app a stranger could use to reach a teen.
One note on language: "private by design" is a claim about how the app is built. The founders avoid ranking claims like "the safest app," because that is a comparison, not a fact about the architecture.
Press assets.
Everything below downloads one file at a time. Logos come in light and dark; screenshots come in both themes. Use the dark logo on light backgrounds and the light logo on dark ones.
Using these assets.
The logos, screenshots, and photos here are free to use in coverage of TeenCycle.
A few small asks, so the brand stays recognizable:
- Use the dark logo on light backgrounds and the light logo on dark ones.
- Please keep the wordmark as it is — no recoloring, stretching, or rebuilding it.
- Screenshots show real app screens; please don't add features or text that aren't there.
- The founders are Laura and Mia, first names only. Both are cleared for publication.
If you need a logo in another format or a screenshot at a different size, email us and we'll send it over.
For reviewers.
If you test apps hands-on, we're glad to send a free unlock so you can see the whole thing without the trial clock. Email social@teencycle.com and we'll set it up.
One ask in return for accuracy: TeenCycle is a tracker, not a medical device or contraception. Predictions are estimates that improve with more logged data, and we'd rather a review say "talk to a clinician if something feels off" than imply the app does more than it does.
Press contact.
Reading, if useful.
These journal pieces give more background and are fine to link or quote.