A system map that feels like home
Every alter gets their own card: photo or symbol, pronouns, role, colors — even their own app theme when they're fronting. Grounding items and notes stay a tap away.
For DID & OSDD systems · iOS
A private, encrypted
home base for your system.
Lighthouse is a calm place to keep track of who's who, log who's fronting, and handle daily life together. Everything lives on your device, encrypted — no account, no cloud, no one watching.
Download on the App Store
Free · no sign-up · works fully offline
The fronting log
Who's out, and when.
Check in as one alter or several — co-fronting is first-class — and Lighthouse keeps the history automatically. Browse it as a list or a calendar, backfill days you missed, and mark entries unsure when nobody's certain.
Uncertainty is a valid answer here. That's the point.
Daily life, together
Everything a system needs,
in one calm place.
A journal that gets it
Write it or draw it: entries carry text and whiteboard sketches, tagged to whoever wrote them. Half-written thoughts survive switching tabs — because losing an entry mid-switch is exactly when it hurts most.
Daily life, handled together
Medication schedules with reminders that keep names and doses off your lock screen, a shared calendar with per-alter tagging, mood logs, and an internal message board.
Share on your terms
Invite someone you trust through your own iCloud. You choose exactly which categories they see, sensitive details stay encrypted, and revoking takes one tap. Sharing is off until you turn it on.
Yours to keep
Passphrase-protected encrypted backups you hold yourself, widgets that show schedules without exposing details, full Dynamic Type and VoiceOver support.
Built for the people who use it
Lighthouse began because one system asked for it, and it has grown by listening ever since — co-fronting, the unsure button, and the fronting calendar all started as someone's "it would help if…".
Privacy
Built like it's nobody's business.
Because it isn't.
- Everything is encrypted on your device — journal, system, meds, history.
- No account. Nothing to sign up for, nothing to be leaked.
- No analytics, no trackers, no third-party code. Zero.
- No servers of ours. Fully offline; opt-in sharing runs through your own iCloud.
- Blurs itself in the app switcher, keeps details off your lock screen.
Steady light. Safe harbor.
Questions, ideas, or something in your way? We're easy to reach.