3Fun is a real niche app for threesomes and swingers, but its privacy record is a serious problem, and that decides my verdict. In 2019, security researchers found it was exposing members’ exact locations, private photos and chats.
On an app where people share explicit pictures and many have partners or jobs to think about, that is not a small detail. Here is what happened, what the app is good for and what I would do instead. If you just want the options that are working now, see my top hookup apps, ranked.
Want a more direct route to casual dating? Try WannaHookUp — my current top pick.
- Pen Test Partners findings on 3Fun, as reported in 2019
- TechCrunch, Engadget and Infosecurity coverage of the exposure
- Third-party reviews of the app, treated as reports
- My own reviews of the alternatives
Straight reviews. Clear expectations. Platforms with a realistic route to real conversations and dates.
3Fun Review: Quick Answers
What is 3Fun? A group dating app for people looking for threesomes and swinging, used by singles and couples.
Is 3Fun safe? I would not treat it as safe for anything private. In 2019 it was found to be exposing the near real-time location of its users, plus private photos. Reports say a fix followed, but I could not independently test the app’s security today, so assume nothing.
Is 3Fun free? One third-party review describes a generous free tier. I could not read prices from its own site, so check the App Store or Google Play listing before you pay.
Is 3Fun good for finding a threesome? Its purpose is clear, which helps. Results depend on who is active near you, and single men are at a disadvantage on any app like this.
What 3Fun Actually Is
The appeal is simple. Everyone on it has signed up for the same thing, so a couple looking for a third does not have to explain themselves, and neither does the third. That is far easier than trying to raise the subject on a mainstream dating app, where the idea can end the conversation.
That clear purpose is the only real reason to consider it, and it is worth something. Niche apps save you the awkward part. The question is what you hand over in return.
The 2019 Privacy Failure
This is the part you need to read. In August 2019, UK security firm Pen Test Partners published what it found in 3Fun. The app exposed the location of its roughly 1.5 million members, accurate enough to show which house or building someone was in. Researchers could get at some of it simply by spoofing their GPS position in the app.
It went further than location. The exposed data reportedly included dates of birth, sexual preferences, chat information and private pictures, and one report said photos were exposed even when members had used the privacy settings. TechCrunch ran the same tests and confirmed the findings. Researchers even reported being able to see users in sensitive places, including around government buildings in London.
Pen Test Partners contacted the company on 1 July 2019. Accounts differ on how quickly it responded: one says an updated version came out within about a week, while the firm’s founder said the issues took weeks to fix. Either way, the problem was reported as addressed back then, and that was years ago, so the app may be very different today.
I am not claiming it is still leaking. I could not test it, and neither can you. My point is about trust. An app that handled the most private data its members had that badly has a lot to prove.
Can You Realistically Meet People?
Possibly, with the right expectations. Couples and open-minded singles do look for each other on apps like this. Two things work against you.
First, single men almost always outnumber single women and couples on threesome apps, so a couple seeking a third has plenty of choice and a man without a great profile will struggle. Second, a niche app depends entirely on local numbers. In a big city you might find active people. In a small town you might find nobody who has opened the app in a year.
Treat any profile that seems too keen with suspicion, and never pay anyone to “verify” you or to meet. A couple who are real will happily do a quick video call before you travel.
How Much Does 3Fun Cost?
I will not quote a price I cannot verify. Its own website gave me nothing readable, and third-party figures for apps like this go out of date fast. Look at the in-app purchases on the App Store or Google Play listing, take the shortest plan if you do pay, and check how it renews. A paid plan makes no sense until you have seen who is active in your area.
If You Use 3Fun Anyway
- Use a separate email address and never your real name.
- Keep your face out of every explicit photo. Assume anything you upload could one day get out.
- Turn off location access when you are not using the app.
- Do not use it at home or at work if your location being known would cause you a problem.
- Keep your chats free of details that identify you, your partner or your employer.
Better Alternatives to 3Fun
Adult FriendFinder is my first choice. It is a long-running adult network with communities for swingers, couples and kink, with search filters, groups and live cams. I used it for years in London, where it got me three to four dates a month early on, though the quality was middling and my results dropped off later. Proper messaging needs a paid plan, and users report fake profiles and billing hassles, so start small. Here is my Adult FriendFinder review and my own experience on it.
Feeld is the better-known app in this space, with linked profiles for couples, desire tags and group chat. Results vary by location and the Majestic subscription affects your visibility. Read my Feeld review and my Feeld alternatives.
For more on keeping yourself safe, see my dating app safety guide.
Final Verdict: Useful Idea, Hard to Trust
3Fun gets 2/5: the purpose is clear, but its 2019 privacy failure is too serious to ignore on an app full of explicit photos. If you are curious, use it with no face pictures and no identifying details. If you want a threesome or a swinger community with a longer track record, start on Adult FriendFinder or Feeld instead. For my current ranking of what is working, see my top dating and hookup apps.
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