Luteal is a private period and cycle tracking app for iPhone. It tracks your menstrual phases, mood, symptoms, and ovulation, and lets you share your cycle with a partner.

Luteal is free to download on the App Store. A premium version with additional features is available as an in-app purchase.

Yes. Luteal is built with privacy as a first principle. Your cycle data is encrypted in transit and at rest, never sold or shared with third parties, and never shown to advertisers. Partner sharing is strictly opt-in and revocable at any time.

What is the luteal phase?

The luteal phase is the second half of the menstrual cycle, occurring after ovulation and before your next period. It typically lasts 10 to 16 days and is associated with a rise in progesterone, which can affect energy, mood, sleep, and appetite.

Does Luteal work on Android?

Luteal is currently available on iOS (iPhone) only. An Android version is not yet available.

PMS tracking: spotting patterns before your period

PMS varies widely

PMS can include fatigue, irritability, sadness, breast tenderness, headaches, cravings, or sleep changes. Intensity varies a lot from person to person.

Tracking these signs helps you understand what truly returns before your period.

Prepare for sensitive days

When you know a phase is often harder, you can plan more rest, lighten commitments, or ask for support earlier.

Luteal connects symptoms, mood, and the luteal phase to make that anticipation easier.

Do not normalize severe symptoms

If premenstrual symptoms become disabling, talk to a healthcare professional. Your tracking history can make that conversation more concrete.

Frequently asked questions

How many days before your period does PMS start?

PMS typically begins 7 to 14 days before your period, during the late luteal phase. Some people notice symptoms as early as 2 weeks before their period, others only in the final few days.

What is the difference between PMS and PMDD?

PMDD (premenstrual dysphoric disorder) is a severe form of PMS that significantly affects mental health, causing intense depression, anxiety, or mood swings. If symptoms are disabling, seek medical evaluation.