Jun 2026 to present · React Native · Expo · TypeScript · Supabase
Locy
Loc journey and care, an AI-powered iOS app.
- monthly active users
- 700+
- paying subscribers
- 100+
- App Store rating
- 4.9/5
- memory recall
- 22.7% to 95.5%
What it is
Locy is an iOS app for people growing and caring for locs. It offers personalized care tracking, product guidance, photo progress journeys and an AI companion. Subscriptions run through RevenueCat.
I built and launched it, and it has grown to more than 700 monthly active users and more than 100 paying subscribers.
A companion that remembers
The AI companion has handled more than 5,900 messages across more than 1,400 conversations. For it to be useful, it has to remember what a member said weeks ago.
I designed a persistent memory system built on structured facts and rolling summaries. I then shipped hybrid retrieval that combines vector search with full-text search, fused with reciprocal rank fusion and weighted by recency.
On a 54-case evaluation set, memory recall rose from 22.7% to 95.5%. Full-text search alone reached 68.2%. The system recorded 0 of 18 sensitivity violations and passed 8 of 8 safety cases.
Notifications that scale
I redesigned the notification infrastructure around batched scheduling, idempotent writes and time-zone-aware SQL. Database load fell by 98.9% and PostgreSQL errors fell by 99%.