SiN is an exciting place to connect with like-minded singles interested in fetishes, fantasy, role-play, bondage and numerous other kinks and kinky passions. Maybe you have tried a mainstream dating app before but just end up wasting time as your desires are never met? Get straight through to the right kind of singles with SiN! Start chatting online and then take it into the real world!


SiN is a community of kinksters with a range of experience levels. Some fetish sites, in our opinion, are just too extreme, SiN is an approachable app for all. SiN has everything you need to search, chat and date all wrapped up in a pixel perfect display.

The SiN app is not swipe-based nor does it have any silly gamification that gets in the way of meeting people, life is too short for all that rubbish. If you see someone you like, send them a HOT alert or send them a private and direct message.


SiN enables kinky singles to:

· Search other members
· Read profiles
· Upload multiple pictures
· Set a local city
· Set a non-local city for people traveling
· Reply to messages and swap pictures
· Select multiple interests
· See who viewed your profile
· + a lot more

The team behind SiN have won multiple dating industry awards and have been creating meaningful relationships for over 12 years.


SiN users can be male, female, couples and transgender from the ages of 18 to 99 and be any sexuality, you can select sex and sexuality in whatever combination defines you. SiN users are interested in bondage, BDSM, swinging, casual partners, hookups, friendship, and serious relationships.


When SiN was created we thought about how to reduce the amount of personal data that is requested. Users can select an alternative first name, set age and not the date of birth, sexuality can be private and passwords are encrypted in such a way they are near impossible to decode. When you decide to leave SiN all your data is erased forever, it’s as if you never joined. We also don’t force you to have a picture nor do we connect up your Facebook account! All message data is automatically erased after a set period. The only personal information you need to enter is an email address and we even suggest you make a new one just for dating purposes. This way you can be anonymous.

SiN is free to download and free to send an introduction and hot messages, search and browse profiles. A VIP subscription may be purchased to allow unlimited messages both locally and internationally. We offer weekly, monthly, 3-month and 6-month subscriptions. The prices are in local currency and clearly displayed on the VIP upgrade page. Prices are subject to change without notice.

View our full terms and privacy policy here:

Could SiN be the best fetish dating app? We like to think so! Get SiN right now and chat / meet like-minded singles today!

What’s New

Version 1.1

Support for dark mode
Faster offline detection
A minor bug squashed

Ratings and Reviews

3.1 out of 5
8 Ratings

8 Ratings

Jaybird1649 ,

Don’t bother

Waaay to many dead accounts.

Developer Response ,

UPDATE: This user never got back to us, we really do care about every user and would have solved this issue, contact us via Original reply:The number of accounts can be limited as we don’t make them up like many other apps. Remember that many people will not upload a picture due to the nature of the app. SiN is one of a few genuine fetish apps that respects privacy and security. If you try others and get stung via company made fakes please try us again. We are working hard to grow our loyal user base and would love to have you back.


47.5 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Frequent/Intense Mature/Suggestive Themes
Frequent/Intense Sexual Content or Nudity
Infrequent/Mild Profanity or Crude Humor
Infrequent/Mild Horror/Fear Themes
In-App Purchases
  1. VIP Access $7.49
  2. VIP Access $10.99
  3. VIP Access $20.49


  • Family Sharing

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

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