3Fun review: the app for couples looking for a third

What 3Fun is, and why the search is half the fun

3Fun is a dating app for couples and singles in ethical non-monogamy (ENM: relationships beyond the two of you, with everyone in the know) who are looking for “like-minded people”. It’s made by 3Fun Limited, a Seychelles company, and its about page says a software engineer named Max started it in 2015.

Couples join as Man+Woman, Man+Man or Woman+Woman, and couples who fit none of those labels each pick a gender and link their profiles. From there it works like most dating apps: you like profiles, a match happens only when the like is mutual, and chatting with your matches is free.

The thrill of looking together

What makes 3Fun different for a couple is that the search is a shared one. You scroll side by side, you trade looks over the top of the phone, and you finally find out what your partner’s type is when it isn’t you. Being wanted as a pair has its own little rush, and the format comes with a safety net: nothing happens until three people have said yes.

Before you download: the sofa conversation

The most important part of using 3Fun happens before you open it. Better to find your differences on your own sofa than in a bar, with a stranger watching.

• Find your overlap. The same fantasy can look very different in two heads: who, how far, how often, a one-time adventure or something ongoing. Our Yes, No, Maybe list lets you each answer in private and then see only what you both chose, so nobody has to say the bold part first.
• Agree on a pause word. Pick a phrase that sounds innocent in public and means “let’s step outside for a minute”. “Did I leave the oven on?” works, and it’s silly enough to break the tension when you need it.
• Say what success looks like. For some couples it’s an evening with a third; for others, a few flirty chats and a story to whisper about later. Both count, so say which one you’re after.
• Promise a veto. Either of you can stop anything, at any point, no sulking. That promise is what makes it safe to be adventurous.

One account or two? Setting up as a couple

3Fun gives couples two ways in, and choosing between them is really choosing who reads what. Make it your first agreement: do you both read every chat, and can either of you message someone alone?

One shared account

You both log in to the same account, and the same messages show on each phone. It suits couples who want one voice and nothing to wonder about, since either of you can pick up any thread. If it matters who said what, sign your messages.

Two linked accounts

Each of you keeps your own profile, and you link them with a QR code or an invite link, which your partner has to accept. Linked accounts can open group chats with each other and your matches, and it’s always clear who’s typing. It suits couples who each want their own voice, and it’s kinder to a third, who gets to know two people rather than one joint inbox.

One rule worth knowing: if you add a partner who doesn’t have an account yet, 3Fun’s privacy notice says you must get and confirm their consent before uploading their details, and if they don’t consent within 14 days of 3Fun asking, it may delete what you gave. In other words, a couple profile is never meant to be a surprise for one half of the couple.

A couple’s profile that flirts within the rules

3Fun’s photo rules are stricter than people expect. No nudity or explicit photos, and no adult toys, fetish gear or ropes in the frame. Public photos can’t show lingerie or underwear indoors. And every photo has to show your face, which on a couple’s profile means both faces.

So think hotel lobby, not hotel room. The profile’s job is to make someone curious about the two of you, and a little restraint does that better than a lot of skin.

Photos that invite

• One where you look at each other, and one where you both look straight into the camera, as if at the person scrolling. The first shows you’re close. The second is the invitation.
• Something you do together, dressed for it: dancing badly, a cocktail class, a hike with a view. A third would be joining your life for an evening, so show them what it feels like.

What goes behind the curtain

Two things on 3Fun are for your matches only: private photos and a private “about”. Use the private about for what you’d rather not have every stranger read: what you’re really hoping for, your limits, how you like a first meeting to go. Your matches get the honest version, and everyone else gets the charming trailer.

Get verified

Photo verification asks for a selfie with a thumbs-up (both of you in it, for a shared account), and nobody else sees it. 3Fun’s AI and Amazon’s compare it with your photos without keeping a biometric template, or a person checks it by hand if you opt out. When you’re asking someone to meet two strangers, proof that you look like your photos goes a long way.

Finding a third, not hunting a unicorn

In poly slang a “unicorn” is a bisexual woman who dates an existing couple, and “unicorn hunting” is a couple looking for one. As Wikipedia puts it, the practice is “often seen negatively by the polyamorous and LGBT communities due to the power imbalance”. There are two of you and one of them, and at the end of the night you have each other to go home with.

Your third might be any gender, and the advice holds. The couples worth meeting make a third feel like a person, not a part:

1. Ask before you pitch. Make your first message about them: what brought them to 3Fun, what they’re curious about, what a good evening looks like to them.
2. Make the group chat the first date. With linked accounts you can open a chat with your partner and your match. Three people, one thread, inside jokes forming in real time. You’ll learn quickly whether the chemistry runs both ways, or all three.
3. Video call before you meet. It’s one of 3Fun’s own safety tips, and ten minutes on camera settles the nerves on every side.
4. Drinks first, in public. Say the rule out loud at the start: anyone can leave at any time, no reason needed, and that includes your guest.
5. Let it be uneven. They may click more with one of you. Talk about how that would feel before it happens, not in the taxi home.
6. Check in the next day, with them too. A kind message says more about you than any profile photo.

For the talk between the two of you, our page on threesomes takes it one clear step at a time, from a shared fantasy to the real thing.

Is 3Fun safe? The 2019 leak, and what came after

It’s the question everyone types, and it has a history behind it. In August 2019, security researchers at Pen Test Partners reported that 3Fun was leaking users’ near real-time locations, birth dates, preferences and private photos, and called it a “privacy train wreck”. They had told 3Fun on July 1. Pen Test Partners said the company “took action fairly quickly and resolved the problem”, while Global Dating Insights, citing TechCrunch, reported that the changes took “weeks”.

In January 2022, 3Fun announced a round of upgrades: encrypted APIs, private photo links, approximate distances and a security test by DigitalXRAID. Those are the company’s own claims, and we found no independent re-test. It also pays a bug bounty for flaws, and the distances it shows are about 1 to 3 miles off, though the app still asks for your precise location. Searching in October 2026, we found no reports of a breach, a lawsuit, or a sale or change of owner in 2025 or 2026.

Is 3Fun legit?

Yes, in the plain sense: it’s a real, active app from 3Fun Limited, and it was updated on both iPhone and Android in October 2026.

Where your data goes

Its privacy notice, dated August 28, 2026, says data is processed in the Seychelles and the US and “may also be accessed by our affiliates in China”. It also says 3Fun has “sold” online identifiers and commercial information to partners in its affiliate program. Residents of California, Colorado, Connecticut, Utah and Virginia can opt out under “privacy choices” in the app or with a form, and Nevada residents by email.

Deleted accounts are kept for 2 months (3 for VIPs) and a deactivated one for 6 months, so leaving isn’t vanishing on the spot. The fair summary: 3Fun fixed what the researchers found and says it has tightened things since. What you upload is still your call, so put nothing on any dating app you couldn’t live with seeing again.

Staying discreet: the settings worth knowing

Because every photo on 3Fun shows a face, discretion here doesn’t come from hiding who you are. It comes from choosing who gets to look.

• Hide account. Only your matches and the people you’ve liked can see you.
• Incognito, a VIP perk: only the people you like can see you, and on linked accounts it switches on for your partner too.
• Hide distance, also for VIPs, on top of the approximate distances everyone sees.
• Block Contacts. Pick people from your contacts, or type them in, and 3Fun does “our best” so you don’t see each other, as long as they signed up with the same contact details. It keeps only the contacts you block, not your whole address book. Your boss, your neighbors and your sister-in-law are all fine candidates.

Screenshots, scams and first meetings

3Fun’s rules ban screenshots or recordings of other people’s photos or profiles, along with unsolicited sexual remarks, deepfakes and escort ads. Public profiles are checked by AI and by people, and you can report someone from their profile or by email. Still, assume any photo or chat can be saved: keep tattoos, jewelry and recognizable rooms out of your private photos too, and strip location data from photos before you upload them.

Its own safety tips are the right ones: stay in the app, never send money, video call first, meet in public. Tell a friend where you’ll be, and use your pause word the moment anything feels off. If someone gets hold of an intimate photo and then demands money (that’s sextortion), don’t pay. Stop replying, save the evidence and report them, and if you’re worried about an image spreading, StopNCII.org can help keep it from being shared.

3Fun is for adults only: you must be 18 or older, and accounts under 18 may be blocked.

Free, VIP, and whether 3Fun suits you

As of October 2026, 3Fun is free to use, and chatting with your matches costs nothing. A VIP subscription, paid through Apple or Google, adds unlimited likes, five Pokes a week (a way to reach people you haven’t matched with), read receipts, Roaming (searching anywhere, handy before a trip), Incognito and hidden distance. Priority Messages are sold as well. Deleting your profile doesn’t cancel VIP, so cancel it in your App Store or Google Play subscriptions first.

It runs on iPhone and iPad (iOS 16 or later, and the App Store lists Apple Vision too) and on Android, and Apple rates it 18+.

Is it the right app for you?

3Fun suits a couple who know they’re curious about a third and want an app built around that one search, with accounts made for two and group chats with room for three. To look further afield, our pages on Feeld and SDC cover two other places couples go.

Questions