Made by a Couple, for Couples

You're Not Moody,
You're Cyclical

For years your body got waved off as "just hormones," and every app handed you the same advice as everyone else. eluna reads your real phase and makes it make sense, to you and to the one you love.

Download on the App Store

More Than
Cycle Tracking

eluna is more than a calendar. It's insight tuned to you, an app that changes with your phase, and answers about your body, not bodies in general.

Luteal, Wind downYour evening insight

Your headaches have landed two days before your period for three cycles straight. Tomorrow is day 26. It isn't a coincidence and it isn't stress. Your body runs to a schedule, and this is a stop on it. Worth an early night, water within reach, and nothing on tomorrow you can't move.

Not medical advice. Consult a doctor for health concerns

Check in with todayTell me how you're feeling

Daily insight

Not Another Calendar

eluna reads what you logged, then tells you what today means, in a few plain sentences, the way a friend would. Three short check-ins a day, with questions written for the day you're actually having.

Follicular, Energy risingYour morning insight

Your energy has climbed three days running, and your focus came back with it yesterday. This is the stretch where your body stops surviving and starts building.

Ovulation, Peak powerYour morning insight

High energy, a clear head, and the best sleep you've logged all month, three days running. You're at the top of your cycle.

Luteal, Wind downYour evening insight

Menstrual, Rest and restoreYour evening insight

Day two, and you logged heavy flow and cramps before you even got out of bed. This is the part of your cycle that asks the most and gives back the least. You don't owe anyone your usual pace today.

Check in with todayTell me how you're feeling

Four phases

Your App Moves With You

Menstrual, follicular, ovulation, luteal. The colour, the tone and the advice change with your phase, so eluna fits the week you're actually in, not an average one.

eluna's cycle map on an iPhone held in a hand

Predictions

Your Body Has a Pattern

Your next period and ovulation, estimated from your own cycles rather than a textbook 28 days. Irregular, long or short, eluna learns your rhythm, and on iPhone it can bring in your history from Apple Health.

Asking eluna a question on an iPhone, held in two hands

Ask eluna

Is This Normal for Me?

Type half a question at midnight. eluna already has your dates, your symptoms and your patterns, so you get an answer about your body, not bodies in general.

With eluna+ on iPhone. Free on Mac.

He Finally Gets It

Share what you choose, and the one you love understands, without you saying a word. eluna tells him what's coming and what helps.

Follicular PhasenowMaya's energy is climbing in her follicular phase. Good time to make plans.
Maya's period has started6d agoShe might be tired or sore today. Warmth, comfort, and patience make a real difference.
Her period's 3 days out9d agoMaya's period is about 3 days out. She may feel more sensitive. A little patience goes far.

Partner mode

He Knows Before You Say It

Send him a code. He follows your cycle from his own phone and gets a heads up before your period. Nine switches decide what he sees, he never sees your journal or your notes, and you can pause it all in a tap.

With eluna+ on iPhone. Free on Mac.

Move, Reflect, Belong

Steps that respect your week, a journal that stays on your phone, and a circle of women in the same phase as you, all inside eluna.

eluna's step counter on an iPhone held in a hand

Move, on iPhone

A Step Counter That Knows Your Week

Today, last week, last month, and back as far as you like. On a rest phase it suggests a gentler goal, and the choice stays yours. A walk shows live on your Lock Screen.

Journal

Say It Out Loud, Then Let It Go

Typed or spoken, tagged to your phase. Your journal never syncs to your account, and with the reflection switched off, nothing in it leaves this phone at all.

Community

A Circle That Gets It

See how many women are in the same phase right now, and talk in a circle where every comment is checked before it appears, so it stays kind and it stays safe.

One Cycle, Every Screen

iPhone, iPad, Apple Watch and Mac. One eluna on all four, in seven languages.

Apple Watch

On Your Wrist

Your phase and countdown at a glance, and a symptom logged at 3am without unlocking anything. Five screens: Today, Move, Insight, Log and Cycle.

eluna's menu bar window on a Mac, today's luteal insight

Mac

In Your Menu Bar

One click from the menu bar to today, your journal, Ask eluna and partner mode. On the Mac, every feature is free.

iPad

On the Big Screen

The whole app, laid out for iPad with a sidebar. Sign in and your cycle, check-ins and chats follow you from device to device.

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Private by Design

Your cycle is the most personal data you have. eluna was built to keep it that way.

No Account Needed

eluna works fully without one. Sign in only if you want sync across your devices or a partner.

Apple Health Stays Put

Anything eluna reads from Apple Health, your steps included, never leaves your iPhone.

Your Journal Is Yours

It lives on this device and never syncs. Switch off the reflection and nothing in it goes anywhere.

No Ads, No Tracking

We don't sell your data and there are no ads. Your body is nobody's business but yours.

Clear About the AI

The daily insight and Ask eluna go through our own server to an AI provider. Nothing is kept on that server, and your data never trains AI.

100% Free to Start

Start free and use eluna as long as you like.
Upgrade to eluna+ whenever you want more.

Free Forever

Daily insight, check-ins and tracking.

No account, no catch

Yearly

Partner mode, Ask eluna and deeper insight.

$39.99

Just $3.33/mo, billed yearly

Lifetime

All of eluna+, one payment.

$99.99

Pay once, yours forever

Try for Free

Or $4.99 a month. On the Mac, everything is free.

Your Questions,
Answered Honestly

Yes, and we mean it. eluna works with no account at all, and anything it reads from Apple Health never leaves your phone. We don't sell your data, we don't run ads, and we never will. Your body is nobody's business but yours.

Most apps hand every woman the same advice. eluna reads the phase you're actually in and changes with you: the color, the tone, the guidance, the questions it asks. Less a calendar, more a companion that finally speaks to today's version of you.

Only what you choose. Out of the box they see your phase, your mood and your energy, and you can switch any of it off. Your cycle day, symptoms and fertile window stay hidden unless you turn them on. They never see your journal or your notes, and you can pause their access anytime. You stay in control, always.

Especially then. eluna learns your real rhythm instead of assuming a perfect 28 days, so the more you log, the better it knows you: irregular, long, short, or still finding itself. You're not broken, and eluna was built to prove it.

No, and we'd never pretend otherwise. eluna is not birth control and not a medical device. Its predictions are estimates, not guarantees. To prevent or plan a pregnancy, please talk to a healthcare professional. We'd rather be honest than risk your trust.

More Than Cycle Tracking