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Teena is the first period tracker built for teens. On-device education, no app required.
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Teena · The period tracker for teens

The first period tracker made for teens.

★ ★ ★ ★ ★ Trusted by families Made by the Daysy family since 1986
$99
One-time purchase. No app, no subscription, no data leaves the device.
Color
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  • Age-appropriate period tracking. Built with adolescent bodies and first-period questions in mind.
  • Free educational app included. Body-literacy content on puberty, cycle basics, and self-care. No cycle data uploaded.
  • All data stays on the device. Nothing syncs to the cloud. Parents keep more peace of mind, teens keep more privacy.
  • Made by the same Swiss family behind Daysy. 40 years of cycle expertise, sized for teens.
30-day money-back
SSL secure checkout
Made in Germany
Family-safe design
40+
Years family-run
since 1986
4
Colors to pick from:
pink, blue, violet, yellow
0
Cycle data sent
to the cloud, ever
1
Free educational app
on body basics
How Teena works

A first period, with a first tool.

Teena is designed to be a teen's own device, not another screen for a parent to manage. Simple to learn, private by design.

1

Log the day.

One button. Press when a period starts, press again when it ends. Teena remembers.

2

See the pattern.

On-device display shows recent cycles and next-expected dates. No account, no login, no phone required.

3

Learn the body.

The free companion app walks through body changes, cycle basics, and questions teens actually ask, at an age-appropriate level.

Explore the education content
Why we made Teena

Because a teen's first period tool should not be an ad-funded app.

Most period-tracking apps monetize young users through ads, in-app purchases, or data sharing. That is not the right first relationship with cycle tracking.

Teena is a one-time purchase. It never uploads a teen's cycle data. Parents keep more peace of mind, teens keep more privacy, and both keep more control.

Read about our approach to teen data

Teena vs. period-tracking apps

Where data livesOn device only
SubscriptionNone
Ads shown to teensZero
Typical free period appsCloud sync, ads, upsells
Parental setup requiredOften, for consent
Common questions

What parents and teens ask us.

What age is Teena for?

Teena is designed for teens with their first or early cycles, typically ages 11 to 17. The educational content is written for that age range. Younger teens usually use it with a parent for the first few cycles.

Does Teena require an app or account?

No. Teena works completely on-device. A free educational app is available separately for the body-literacy content, but it does not sync cycle data. No account, no login, no upload.

Is there a mother-daughter option?

Yes. We offer Mother-Daughter bundles pairing Teena with Daysy or Lady-Comp at a bundle price. See bundles on the shop page.

Is Teena a contraceptive or fertility tracker?

No. Teena is a period tracker, not a fertility monitor or contraceptive. It logs cycle start and end dates and helps teens see their own patterns. For fertility tracking with BBT precision, Daysy and Lady-Comp are the family's fertility devices.

See all questions

Their body. Their data. Theirs.

Teena is $99, one-time. Free US shipping. 30-day money-back guarantee. Four colors: pink, blue, violet, yellow.

Add Teena to cart · $99

Body literacy starts with the first cycle.