From the studio

Updates, thinking, and announcements from the Sylvester Digital team.

Announcement

Announcing Luma: simple cycle tracking for Android

We're building Luma, our third Android app. A clean, focused cycle tracker for anyone who wants to understand their menstrual cycle without the noise, the subscriptions, or the privacy compromises that come with most period apps.

Log periods, see your fertile window and cycle phase, and review your history in a monthly calendar. No accounts, no cloud, no data leaving your device.

Read the announcement
Announcement

Announcing Tiddle: fluid balance tracking for Android

We're building Tiddle, our second Android app. A clean, focused fluid tracking tool for anyone who needs to log what they drink and what they pass. No subscriptions, no accounts, no data leaving your device.

Read more
Announcement

Announcing Vitals: track what matters

We're building Vitals, our first Android app. A clean, focused health tracking tool for anyone who needs to monitor blood pressure, heart rate, or oxygen saturation. No accounts, no data leaving your device.

Learn about Vitals
Health

Why simple health tracking makes a real difference

Millions of people manage chronic conditions without a clear picture of how their numbers change day to day. We look at the case for consistent, simple logging and what it means for the doctor-patient conversation.

Read more
Studio

The name: what "Sylvester" means to us

Names matter. Ours comes from the Latin silva, "of the forest." We chose it deliberately, because the qualities of a forest: patience, deep roots, interconnectedness, are exactly what we aspire to build into our software.

Read more