Just starting your period journey?
Teena is for:
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.
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.
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.
I love my Teena and measuring in the morning is so easy and fast. I told all my friends about Teena.
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.
Your teen’s new BFF for her morning routine
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.
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.
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.
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.
Make talking periods your monthly bonding time
A one-of-a-kind cycle 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 |
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.
Download the free app
Free e-books
Download our free e-books on teen periods and explore our content here!
It just takes 30 seconds to measure
plus more answers to questions about Teena
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.
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.
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.
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.
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.