Tracks menstrual cycles, logs moods with photos, and switches into a week-by-week pregnancy mode for ongoing care. Cylia: Period & Mood Tracker is built by AJX MMC as an Android health app that stores data locally. It shows a visual Cycle Ring and calendar ranges for upcoming periods, supports fertility and pregnancy tracking, and saves mood entries as a personal memory shelf. The app fits users who prioritise privacy and want combined symptom and emotional journaling.

How it maps cycles and emotional context

The app combines a date-based Period Calendar with a Cycle Ring that displays the current cycle day and upcoming phases at a glance. Users log period days and symptoms; the calendar estimates future period ranges from past entries. Mood Journal entries attach emotion tags and photos to specific dates, so daily emotional notes become a searchable memory shelf rather than isolated logs. Fertility markers flag likely ovulation and peak conception windows for planning purposes.

How it protects data and handles backups

Cylia operates without accounts, storing primary data locally on the device and offering PIN, fingerprint, or face unlock for protection. Optional cloud backups are encrypted locally before leaving the device, so backups use end-to-end encryption that the developer cannot read. The app also uses discreet notification text on lock screens for privacy when reminders appear, which keeps alerts neutral in public settings.

Daily use, onboarding, and compatibility

On Android devices running 5.0 or later, the app works offline for routine logging and calendar access. Initial setup asks for cycle history to estimate future ranges; pregnancy mode shifts the interface into week-by-week tracking with trimester context and weight logs. Customizable reminders nudge users to add daily logs or pregnancy milestones, and biometric unlock requires compatible hardware for that security option.

To sum up, a privacy-focused daily tracker for personal health journaling

Cylia suits privacy-minded people who want a single place for menstrual, fertility, and pregnancy records plus mood memories. It supports offline use and local encryption, though some advanced functions sit behind an account-gated tier. For anyone who prefers device-only data and discreet reminders, it integrates into daily routines with low friction; those who need every advanced backup feature should expect an extra access level.