A black and white award badge with a spiral trophy in the center, the years 2020 and 2025 on either side, and a ribbon at the bottom with the word 'WINNER' written on it.

Our breast health app was named the Best Health and Fitness app in 2025 by the Webby Awards

That’s like winning an
Oscar for an app!

(It’s saved many lives from breast cancer, but it only works if it’s on your phone.)

4.8 STARS on the App Store!

Smartphone screen displaying information about 12 symptoms related to breast cancer, with one symptom 'hard lump' highlighted and an illustration of a lemon, indicating the symptom.
Screenshots of a mobile health app featuring sections on symptoms, breast cycle tracking, self-exam, screening plan, and mammogram scheduling.

App features:

  • self-exam audio guides with monthly reminders timed to your body

  • custom screening plan based on your risk factors

  • how to identify and report symptoms to your doctor

  • prepare for mammograms, ultrasounds, breast MRI and biopsy

  • book a mammogram through the app (USA only)

  • learn about risk of recurrence

Available in English, Spanish, French, German, Dutch, Portuguese, and Mandarin—for all genders.

Is this the right app for you?

View the Know Your Lemons app features and learn about workplace benefits on the app too:

BEST HEALTH +
FITNESS APP

A black and white badge with a central image of a spiral-shaped candle, the years 2020 and 2025 on either side, and a banner at the bottom with the word 'WINNER'.
Seven gold stars aligned horizontally
Webby Award nominee badge featuring a spring coil in the center with the year 2019 and circular text.
Black and white circular badge with a spring in the center, flanked by the years 2020 and 2024, and the text "Webby Award Honoree" at the bottom.
Webby Award nominee badge featuring a lightbulb icon, with the years 2020 and 2023, in a circular design with black and white colors.
Webby Award Nominee badge from 2022 with a central spring icon

4.8 STARS

1 in 8 women will develop breast cancer.

EARLY DETECTION WILL SAVE THEIR LIVES.

A sketch of the 10 pint-sized cans of Pringles potato chips, with a sour cream and onion flavor indicated by a pink band on the right side of the can.

Odds of survival with early detection:

99% of women with breast cancer survive if diagnosed at the earliest stage.

Six yellow and six pink drawn circles arranged in two rows, alternating in color, on a black background.

Odds of survival with late detection:

Only 3 in 10 women survive breast cancer when diagnosed at the most advanced stage.

Lifesaving App Reviews

TRUE STORIES OF EARLY DETECTION

“This app takes the fear and unknown out of identifying signs and symptoms of breast cancer.”

—KATIE W.

“Because of this app, I found my lump. It saved my life!”

—LUCIE C.

See Lucie’s story here!

A woman with dark, curly hair wearing a bright red sleeveless dress, smiling in front of a leaf-patterned wallpaper.

“My self-exams improved greatly after discovering @KnowYourLemons. The techniques I learned helped me discover breast cancer at its earliest stage!”

—CINDY P.

Perform Self-Exams, Easily, Correctly, and Regularly

There’s more to know than just “feeling for a lump” and we can teach you!

Schedule a mammogram in minutes

(USA only)

Period tracking
made effortless

Perform your exams at the right time of month. No period? Choose a day and we’ll send you monthly reminders.

Learn how risk factors and screening plans are connected

Take our screening guide quiz and learn how to have better conversations with your doctor.

FAQs