100ideas

#012LifeExperimentLive

Luna Sync

Understand your menstrual cycle through lunar phases.

The story behind it

We believe some rhythms are best understood slowly. A cycle measured in weeks can be seen through a lens measured in months — the moon gives that longer view.

Why we built it

The problem

Cycle apps treat the body like a calendar of symptoms to log and predict. For many, the daily logging becomes the chore — and the sense of a longer rhythm, of being part of something cyclical, is lost entirely.

The idea

Luna Sync

The creation

We built Luna Sync as a quiet iOS companion that maps your menstrual cycle against lunar phases. It keeps the practical tracking, then adds the perspective: where your rhythm sits in the moon's, and what that longer view feels like.

This creation began as #012 in our idea archive.

What it does

Cycle tracking

Gentle, low-effort logging of your cycle.

Lunar lens

See your rhythm against the moon's phases — a longer view.

Quiet perspective

A companion for understanding, not another dashboard.

In the wild
Luna Sync screenshot

Give it a try.

Luna Sync is a Life creation from 100ideas. Small idea, useful creation.

Also from us: all creations