iPhone Screenshots


Semistry is the app of sexual activities- developing how we understand sex, and ultimately ourselves.

· The Semistry Index holds the largest collection of sexual activities in the world- over 1800 references- organized by most common to most rare. Spice up dormant sex lives and bored relationships with the most detailed map of human sexual activities ever.

· Calculate your Sexual Experience Metric- S.E.M. score- by quantifying your sexual history. Everyone has a unique SEM score, based on their choice of People, Places and Activities made throughout their adult sex lives.

· The Semistry Diary allows you to visualize and organize your sexual relationships like never before. Track individual sexual partners and re-discover the high and low points of your sex life.

The gamified approach creates a fun and rewarding experience where users can securely and anonymously review their own sexual history. By encouraging sexual self-knowledge, Semistry seeks to break taboos, promote tolerance and diversity of sexual experience - all from the privacy of your mobile device. Research your sex life with Semistry.

What’s New

Version 1.4.2

More Spring bug fixes!
· Fixed rare crash during App start.
· Small update to the Initial Selection screen.
· Added a new Alert pop-up for new users and partners.

Ratings and Reviews

4.9 out of 5
81 Ratings

81 Ratings

PicZure ,

Fantastic App

I downloaded this app a while back and found it quite engaging, entertaining and also funny. This app took me back to my previous relationships in a fantastic way. The new update with the Diary feature is more expansive which forced me to think about exactly what my ex’s and I have done together. A must download!

Developer Response ,

Thanks for the kind words!

The G Knee ,

Sexual Experience Quotient

This app allows you to essentially quantify your IQ score for your libido. This fun, engaging and sleek app will test the potency of your root chakra, and enlighten you in a way you didn’t think was possible.

Also, the completion of a category of achievements, for me, was very satisfying as it happened very rarely. Like, very.

Highly recommend!

Developer Response ,

Thank you for your kind words, we greatly appreciate it!

jccrowder ,

Easy to use app

I like having the ability to track mine & my spouses activities. Its simple enough to make a quick entry so that you know your not being forgetful, that helps a lot when keeping track of him too!


153.3 MB

Requires iOS 9.3 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
You must be at least 17 years old to download this app.
Infrequent/Mild Mature/Suggestive Themes
Frequent/Intense Sexual Content or Nudity
Infrequent/Mild Profanity or Crude Humor
© Semistry Inc. 2015 - 19
In-App Purchases
  1. Research Edition $2.99
  2. Partners $0.99


  • Family Sharing

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

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