Who this is for

Just starting your period and menstrual cycle journey?
Teena Period Tracker is for:

Early or unpredictable cycles

Irregular sleep schedules

Girls and teens with dynamic lifestyles

Irregular periods during puberty

Busy school or activity schedules

Learning how to track your body

You don’t need a perfect routine to use Teena it’s made to support real life and help you understand your body from the very beginning.

Device & App

Multi-award-winning!
Period Education for Teens

I always felt ashamed speaking about my period. Now I can read the articles in the Teena app with my mom and we speak about it.
Anonymous teen
When I think of my period coming, I feel powerful and proud. I also feel a little nervous and have lots of questions. Teena answers all of my questions.
Nancy
I love my Teena and measuring in the morning is so easy and fast. I told all my friends about Teena.
Mary
EduMedia seal 2023
german innovation award 2023
Best of swiss apps 2022
reddot winner 2022
BE PERIOD READY

Put an end to period anxiety once and for all

According to a 2023 Statista survey, almost half (45%) of t(w)eens feel embarrassed, anxious, and scared when thinking about their first period. Fearing period shaming by classmates and the unknown.

Teena helps your daughter know when to expect her periods. Equipping her with the support, tools, and knowledge to feel confident, in control, and in charge when prepping for the first and future periods.

"Before Teena I was worried about getting my period in school. Now I know when my period is coming and I am prepared." - Alice

PERIOD TRACKER FOR TEENS

Calculate and predict periods reliably

Teena uses basal body temperature (BBT) to track hormonal fluctuations in the menstrual cycle. 

After detecting the slight increase in BBT with ovulation, Teena predicts when the next period is likely to arrive (including the very first period). 

Supporting teens with peace of mind that they won’t be caught off guard.  When the time comes, they’ll be ready.

*Disclaimer: Because teen periods are irregular, Teena can’t give an accurate to-the-day prediction for every single period. Teens may have bleeding that looks like a period but isn’t linked to menstruation.

Here's how it works

Your teen’s new BFF for her morning routine

Comes with a free App

Learn to love the cycle
Teena is all about period positivity.

Because menstruation isn’t just a fact of life that needs to be endured – it’s a beautiful part of our biology signaling health and vitality.

Myth-busting, stigma-smashing education made 100% for teens

Not like the adult content found in other period tracking apps or social media.

Just short, science-backed articles and videos that meet teens where they are. Answering all the questions they didn’t know they had (or how to ask).

Your daughter will learn to appreciate the changes in her body, so she can navigate puberty like a boss.

Mood-boosting affirmations and positive symptom tracking

Teens can check in with themselves daily with positive mood tracking and space to journal.

With daily encouragement, your daughter will learn to tune into her body’s inner wisdom, understand the influences of hormones, and love herself – and her period.

Helpful self-care tips for the entire cycle

Wellness tips and tricks teach teens how to best care for their minds and bodies during different times of the month.

Celebrating the cycle phases and learning how to use the superpowers from each time to feel their best.

What our Users say

Hear from more happy Teena users

Before I got this Teena period tracker, I felt really nervous about when my period was going to come, and if I would be ready or not. But now, all I have to do is track my temperature using my Teena every morning, and I feel like I’m going to be ready when my period comes. It will catch when I ovulate, even before my first cycle. Now I feel confident because I will know when my period is coming.
Ella
I was upset when I got my period because I thought it was the end of the world. It was an inconvenience because I never knew when the next one would come. Now I know and I can prepare.
Patricia
I love having my Teena! It has taught me so much more than other apps I’ve used. The magazine articles, telling about your period and other things are really great. I also like seeing the different phases of my cycle. My Teena tracks my temperature and then I can add my period and feelings in the app. The little positive notes I get in the app every morning are really cool, too.
Net
Why moms love teena

Make talking periods your monthly bonding time

Get the tools to discuss intimate health topics comfortably

You’ll gain the language to talk in-depth about reproductive health and check in with how she’s feeling.

She’ll be encouraged to come to you for answers and you can ensure she gets the support she needs. So you can go through this special time together – closer than ever.

Gain valuable insights into your teen’s health and ovulation

See if your teen may have an underlying health issue causing missed ovulation and periods (like polycystic ovary syndrome (PCOS) or an eating disorder), with cycle stats.

So you can take fast action and protect her health over the long term.

Feel secure with a science-backed device and content

Teena’s algorithm and sensitive basal body thermometer are based on 4 decades of research and development.

All content in the app is developed in collaboration with medical experts.

Have confidence that you have complete data and app privacy

You’ll never be asked for personal information like name or email address by Teena, and data isn’t ever shared with third parties or advertisers.

Your teen can feel comfortable tracking cycle signs and journaling with complete privacy and anonymity.

Receive expert 1:1 support at any time

Period running late? Two periods in one month? Longer cycle length than normal?

You and your teen can reach out to us via phone or email with questions at any time. Our cycle experts will dive into the data and give you a free cycle analysis.

“My teen might skip putting on deodorant or contacts, remembering to use a thermometer every morning isn’t realistic.”

Worried about your daughter being able to keep the routine?

You can get her an alarm clock and place Teena next to it so it’s the first thing she sees when she wakes up. Before you know it, it’ll become as automatic to her daily self-care as brushing her teeth. Setting the stage for lifelong health and well-being.

Get Teena
Us vs. them

A one-of-a-kind period tracker made for teens

Teena Other period trackers
Developed based on medical device standards No associated device
Accurate period predictions based on BBT Unreliable predictions for irregular teen periods
Age-appropriate content for ages 9-16 Adult content centered around fertility and pregnancy
Free app (no subscription!) Monthly fees
No more worrying about surprises on the playground.

Find out when the next period is coming

With Teena’s fun and completely shame-free education, your teen will feel comforted and validated as she navigates the ups and downs of puberty.

Get Teena

Download the free app

Free e-books

Get a taste of Teena

Download our free e-books on teen periods and explore our content here!

Get the E-Book
FAQ

It just takes 30 seconds to measure. Learn more about our period tracker Teena.

Can I transfer my data to other Valley products at a later time?

If you are ready for a more in depth look at your cycle and fertility, your data can be transferred to the Daysy fertility tracker. Contact your local support team for more information.

Does the "Teena App" work with Android and iOS?

Yes, "Teena App" works with most Androids and iOS. The app can be downloaded from the Apple App Store or Google Play Store. The app store description will give you information on the latest app version and software requirements.

Can I use Teena if my sleep schedule varies?

Yes! Everyone has problems sleeping from time to time, stays up late, or sleeps in. It does not matter for this method because it recognizes and evaluates its own pattern to display the follicular and luteal cycle phases.

How long until Teena knows my personal cycle?

The first 2-4 cycles of use are considered the learning phase. Over the course of the learning phase, Teena will come to understand your cycle and begin predicting your next menstruation with accuracy.

Where do I measure with Teena?

Below the tongue in the pocket next to your lingual frenulum (that’s the muscle line you feel running along the underside of your tongue) and with your mouth closed. It is best to measure on the same side each morning with the sensor tip lightly touching the bottom of your tongue if comfortable.

Product details, warnings and safety information

Information about the device

WEEE-Reg. No.:
DE34917049
EAN:
4049812000033
GTIN:
4049812000033
EAN:
4049812000040

Warnings and safety information

Manufacturer

Valley Electronics GmbH
VE Valley Electronics GmbH, Breite 2 82418 Murnau, info@eu.daysy.me

EU-Representative: M.I.S.S. GmbH Breite 2, 82418 Murnau a. Staffelsee, Germany info@eu.daysy.me