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.

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.

Best period tracker app: what to look for before choosing one

The best app is the one you keep using

Cycle tracking only becomes useful when the habit is easy. If logging your period, symptoms, or mood takes too much effort, your history becomes incomplete very quickly.

Luteal is designed for a calmer routine: see today's phase, log what matters, understand what may be coming next, and move on with your day.

Accuracy should come with context

Searches like "accurate period tracker" often imply perfect prediction. In reality, cycle apps are wellness and observation tools. They are not medical devices, diagnostic tools, or contraception methods.

A responsible app helps you notice patterns while staying honest about natural cycle variation.

Why Luteal is different

Luteal combines period tracking, menstrual phases, mood logging, symptom notes, ovulation estimates, and optional partner sharing in one private iPhone app.

It is built for people who want to understand their cycle without using a cluttered or ad-heavy experience.

Frequently asked questions

What is the best period tracker app in 2025?

The best period tracker is the one you use consistently. Look for an app that tracks all four menstrual phases (not just period dates), respects your privacy, has no ads, and is simple enough to log daily without friction.

Is Luteal better than Clue or Flo?

Luteal, Clue, and Flo take different approaches. Luteal focuses on privacy, a clean ad-free interface, menstrual phase insights, and optional partner sharing. If privacy and simplicity matter most to you, Luteal is worth trying.

Can a period tracker app be used as birth control?

No. Period tracking apps are wellness and observation tools, not certified contraception methods. For contraception, consult a qualified healthcare professional.

Is Luteal free to download?

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