This App is for YO 2.0 WiFi Kits that Connect by WiFi. Product Numbers:

(The Box Will Display a WiFi Logo)

For the Previous Product Version (YO-FA-01469-00), Please download the YO 1.0 App from: WWW.YOSPERMTEST.COM.

About the App: Check your sperm swimmers easily and accurately using the YO Home Sperm Test (Test Kit purchase required). Turn your smartphone, PC or MAC into a testing platform to assess your motile sperm concentration (the number of moving sperm in your sample) in about 3 minutes (testing time). That's right, MOVING SPERM - These swimmers are the only ones that REALLY count! YO also captures a video of your sperm for you to see or send, with your results, to an expert for further analysis. Find out if you are in the "NORMAL" range, see your YO SCORE rating vs. other men and learn about what you and your partner can do to improve your fertility potential by following YO's Path to Pregnancy for couples. The app will advise you to seek the advice of an MD if your test results are low and YO can help you Find an Expert in your area if you need one.

The YO Home Sperm Test is > 97% accurate vs. laboratory semen analysis, FDA cleared for over-the-counter use and has been thoroughly tested for precision, accuracy and much more by all of us at Medical Electronic Systems. We've been in the automated sperm testing business for more than 20 years so we know what we're doing.

To run your sample on the YO Home Sperm Test, download this app and purchase the affordable, YO kit on our website ( The kit includes ALL of the supplies you'll need to run two tests plus a YO WIFI (local) device (good for 50 tests). For more details about how YO works, read on…

The YO Home Sperm Test app operates together with the YO (local) WIFI device to assess, report and display a video of the MOTILE SPERM CONCENTRATION (MSC) in your semen sample. Results are reported as either LOW MSC RANGE: Less than 6 Million (sperm) per milliliter or MODERATE/NORMAL MSC RANGE: Greater than or equal to 6 Million (sperm) per milliliter. The YO Home Sperm Test app guides you through the testing process step by step on your Smartphone/ PC or MAC screen providing both written and animated instructions. Your test results and videos are stored securely in the YO archive until you delete them.

Check your swimmers with the YO Home Sperm Test and start the journey to your Path to Pregnancy with your partner.

YO is cleared for use as a CLASS 2 medical device and is available for over the counter use in the U.S.(FDA); Europe and the UK (CE); Australia (TGA); Canada (Health Canada) as well as India, Vietnam, Taiwan, Israel and Japan for reporting Motile Sperm Concentration. Disclaimer: YO does not provide a full, comprehensive semen analysis. Users are advised to seek professional consultation/advice if unable to achieve a pregnancy and for a LOW YO test result.

What’s New

Version 170.1.18

• Update the Fertility Tools and Sexual Wellness screens with new text
• Update the User Agreement Text
• Update Reporting a Problem Text
• Skip to step 4 after 10 min timer if user opts out of the Trivia Challenge
• Add the "Continue" and the "What does my result mean" buttons to the QC screen after a test
• Bug fixes

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Smokester7 ,

Easy to use and pretty fun at home test!

This is a easy to use at home test for you and possibly your partner to do together. Doesnt take long and the video is cool. Dont know if it is medically accurate, but I guess gives some insight and comparisons to others test results.

Morgan Wallen 2021 ,

First timer

Trying to get pregnant for the first time so I decided to purchase YO just to see. Not sure how accurate it is but came back 90% so fingers crossed.

ncokd TY ioncc ,

Worked Quickly

The results were easy to interpret and the video recording made it simple to see what the sperm motility looked like up close.

App Privacy

The developer, Medical Electronic Systems, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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