Know Your Lemons - Self Exam

4.1
147 reviews
10K+
Downloads
Content rating
Everyone
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About this app

Know Your Lemons is your #1 app for breast self exams, sending you monthly reminders timed to your breast cycle, understanding your screening plan, learning about risk factors, details about signs and symptoms, preparing for mammograms, and more. It’s the world’s first app designed to improve early detection of breast cancer and is the only period tracking app nominated for a Webby Award in 2023. Named the Top 5 Health and Fitness app in 2023, 2022, and 2019, this app has saved lives and doesn’t collect your data.
Updated on
Nov 11, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.1
144 reviews
Dawn Hansen
September 21, 2025
So so important to have something to remind us to do this vital self screening. Love that it has all the information you need to know on how to do it and resources in case you find something all in one place. And I love the reminders for the self exams...my sister is currently battling breast cancer STILL forget all the time! I've sent the app to all of my friends and family. I don't want to ever have to watch anyone have to fight this again.
4 people found this review helpful
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A K
January 17, 2023
Simple and helpful app all around! Like most other folks I plan to do the monthly checks yet somehow, it never happens. Since I got the app, I've been checking every month without fail! Plus! I had always known to check for lumps but never understood exactly what to look for - their use of lemons to give a "real life" example of what to feel (and look) for has made me feel very confident with my checks as there's no more second-guessing from me.
7 people found this review helpful
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Know Your Lemons Foundation
April 5, 2023
So glad you have found our app so helpful Ania! Our app is up for a Webby award (the Oscar award for apps) and we would really appreciate your vote! https://vote.webbyawards.com/PublicVoting#/2023/apps-dapps-and-software/general-apps/health-wellness-fitness
Kate Flerlage
April 4, 2021
they keep responding to people saying that the email login works fine but IT DOESNT. I was trying to find a good app to give me a tutorial on giving yourself a breast exam, but it's impossible to even create an account. no matter what, it will say that the password is too vulnerable (EVEN IF ITS A PARAGRAPH LONG). this is driving me absolutely up the wall. good idea, terrible execution.
14 people found this review helpful
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Know Your Lemons Foundation
September 28, 2021
UPDATE: Kate we've now updated the app so the login is completely new design. Don't hesitate to let us know if you find anything with the new app at hello@knowyourlemons.com

What’s new

We’ve added badges for self-exams and completing quizzes to make tracking your breast health even more engaging. Also added new features for the Know Your Lemons At Work section, including genetic counseling, genetic testing, and genomic testing services.