Compare · Yuni vs Clue
Clue charts her.
Yuni tells you what to do.
If she's already on Clue, don't make her switch. Get Yuni for yourself. Clue is the most scientifically credible cycle tracker on the market. Yuni does the thing Clue doesn't: explain what to do this week.
No accounts, no cloud sync, free trial. Built for the boyfriend, husband, partner.
The 30-second summary
Clue is the period app academic researchers actually trust. The team is Berlin-based, the medical advisory board is real, and the app is FDA-cleared as a medical-grade contraceptive (Clue Birth Control). Around 13 million people use it. It is genuinely good at what it does. But it was designed for the person menstruating, not for her partner.
Yuni is built for the partner. It does not replace Clue. It translates what each phase means for him: what she may feel, when not to bring up something hard, what helps on rough days, what to do during the good days. One app per person, both quietly working in the background.
| Clue | Yuni | |
|---|---|---|
| Built for | The person tracking her cycle, especially clinically | Her partner — boyfriend, husband, fiancé |
| Account required | Yes (email or Apple/Google ID) | No |
| Cloud sync | Yes (cycle data on Clue servers, GDPR-compliant) | No — stays on your phone |
| Daily guidance for the partner | None — Clue is single-user, no partner mode | 5 daily modes (Care · Energy · Connect · Calm · PMS) |
| "What to say" / "What not to say" scripts | No | Yes — phase-aware |
| Medical content | Peer-reviewed by Clue's medical advisory board; FDA-cleared birth-control mode | Conversational; partner-relational, not medical |
| Pricing | Free · Plus £29.99/yr · Birth Control £39.99/yr | Free trial · Weekly £4.99 · Annual £79.99 |
| Pairing with partner | No native partner mode | Pair link — her data on her phone, his guidance on his phone, no central server |
When Clue is the right choice
If she wants serious cycle science, FDA-cleared digital birth control, or a tracker that won't harvest her data for ad targeting — Clue is the right call. The Berlin team has been at this since 2013 and the medical advisory board is the real thing. If she's already used to it, switching her off Clue is friction with no benefit.
Clue does not have a partner mode at all. The product team has been clear they're focused on the person menstruating. There's no in-app way for the partner to plug in. That gap is exactly where Yuni sits.
When Yuni is the right choice
If you have ever stood in the kitchen at 8pm wondering whether to bring up the rent conversation tonight or sit on it for three days, Yuni is for you. The app's job is small and specific: every morning, tell you what week she's in, what she may feel, and what helps. Then get out of the way.
The privacy model matters here. Yuni doesn't ask for an account because the partner-support category is one where men quietly download an app, use it for a month, and never tell anyone. We optimised for that user. Her cycle data — when you pair — never leaves the two phones.
Yuni's other moat is the script library. "What not to say to her on her period." "How to apologise when you don't know what you did." "The 20-minute pre-period conflict protocol." These exist because they're what partners actually search for at 11pm. Clue, focused as it is on the person tracking, doesn't write content for that audience.
The simple verdict
Get Clue if…
She wants research-grade cycle science. She values privacy and a non-pink, non-flowery UI. She wants FDA-cleared contraception via cycle, OR she's training as a clinician.
Get Yuni if…
You're the partner. You want to stop guessing. You want short daily guidance instead of charts to interpret. You don't want another account.
The real-world setup is usually Clue on her phone, Yuni on his. They don't compete — they fill the gap each other leaves.
How they work together
The most common Yuni user has a partner who tracks her cycle in Clue or Apple Health. They pair via Yuni's link (her data, no third-party sync), and Yuni reads her phase from the paired source on her phone, then renders it as a daily nudge on his.
If she doesn't track at all, that's fine too — Yuni works from a single estimated cycle date. Less precise, still useful.
Quick answers
Is Yuni a Clue competitor?
No. Different audiences entirely. Clue is for the cycle scientist; Yuni is for the partner. We recommend both.
Does Clue have a partner mode?
No, Clue is single-user. The partner relationship is exactly the use case Yuni was built for, because Clue chose not to.
Do you need an Apple Watch?
No. Yuni runs on iPhone. iOS 17+. Apple Watch and Live Activities are coming but optional.
What does it cost?
Free trial. Weekly £4.99 or Annual £79.99 after that. No ads, no data sale.
One tap. No account. If it's not useful, delete it and we never know you tried.