TOP 5 HEALTH + FITNESS APP in 2025! Monthly self-exam reminders. Learn your breast cancer risk factors through a screening assessment. Bring it to your doctor to set your screening plan together.
Know Your Lemons is your #1 app for breast self exams, sending you monthly reminders timed to your breast cycle, calculating your breast cancer risk, learning about symptoms, preparing for mammograms, and more. It’s the world’s first app designed to improve early detection of breast cancer. Named the top 5 Health and Fitness app in 2025, 2024, 2023, 2022, and 2019 by the Webby Awards, this app saves lives and doesn’t collect your data.
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Know Your Lemons Breast Check FAQ
Is Know Your Lemons Breast Check free?
Yes, Know Your Lemons Breast Check is completely free and it doesn't have any in-app purchases or subscriptions.
Is Know Your Lemons Breast Check legit?
✅ The Know Your Lemons Breast Check app appears to be high-quality and legitimate. Users are very satisfied.
Thanks for the vote
How much does Know Your Lemons Breast Check cost?
Know Your Lemons Breast Check is free.
What is Know Your Lemons Breast Check revenue?
To get estimated revenue of Know Your Lemons Breast Check app and other AppStore insights you can sign up to AppTail Mobile Analytics Platform.
I’m tech savvy, but there are a lot of non-intuitive icons in this app (“mystery meat”). Also, the main screen’s content is all overlapping for me (on an iPhone 8). The Mona Lisa video said to go to knowyourlemons.COM, but the text in the video listed the .ORG. (Hoping the organization owns both TLDs). All in all, I’m hoping there will be more updates to clean things up, so I’ll keep the app on my device for now because getting reminders for a self exam would be good. There are just some odd quality control things going on…
Incredibly Knowledgeable
This app changed the way I view myself exams. I have sent it so to so many friends!
Wanted it to work
Just downloaded this app and was ready to utilize it. Unfortunately I couldn’t get past the age portion of the screening quiz as it had no options but my haptic feedback was going off like it was an option to scroll for your birth year. The only numbers it would show were 39 and 40. As I am 29 this obviously now the Ed of these options would reflect my age to accurately relay my risks. Really bummed. Super cute graphics though.
I know my lemons!
I really enjoy this app. I like that it has the option for no menstrual cycle.
I’ve always been paranoid about breast cancer as my great grandma had a prosthetic breast when I was a kid. They tell me she’s a “distant” relative and it’s not of concern but that’s not how my brain works. Now, my friend I’ve had since 2nd grade has recently been diagnosed with breast cancer.
Thanks for making an easy tool!
Bomb Diggity Dog BEST APP for Breast Health!!
Know Your Lemons 🍋 is THE BEST! Save a life! Save a breast! JUST DO IT! Get the APP and follow the prompts…Better health will follow! 😉❤️
Love This App!
This is such an amazing App! - Especially for me, because I am considered High Risk for Breast Cancer. Thank you for helping to save lives!
Everyone needs this app!
I was just diagnosed with breast cancer and I’m too young for a mammogram! So I began looking for an app to recommend to family and friends! They have apps for everything so why not breast exams. I love this app and wish I knew about it earlier which may have helped my situation… However, I tell all of my friends and family to use it so hopefully if they get cancer it is caught early. Highly recommend for every woman no matter the age because cancer doesn’t care how old you are and it’s happening to younger women!!!
This app saved my life
I’m 40 and no one in my family has ever had breast cancer. A year ago I noticed an odd-looking patch of skin, and didn’t really think anything of it at first. A few weeks later, it hadn’t gone away, and I started to get that sinking suspicion… I googled, found KYL, and learned the 11 non-lump symptoms — I’d had no idea previously that there were other symptoms! *Because of this app* I made a doctors appointment to get checked — but, when I went in my physician did an exam and said that because he didn’t feel a lump, I was fine, and not to worry. SOLELY because I knew about my breast health because of KYL did I push back and demand a mammogram. A week later I was diagnosed with stage 3 breast cancer. My oncologist says the chances of a recurrence are very low because I caught it early.
Cancer is awful to go through, but if you have to go through it your chances of successful treatment are much improved with early detection. The Know Your Lemons Foundation is a gift to all women.
Doesn’t work
Reminders don’t work and are inconsistent.
Bright, Beautiful, Informative
This app is loaded with information, all presented in bright, beautiful graphics. It doesn’t just keep track of things or send you reminders—it also explains the WHY behind everything, using a friendly, conversational approach (and, of course, lemons 🍋). The whole concept is brilliant and life-changing!
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