Mormonize

Scripture study with on-device AI

Client

Online Olive

Year

2026

Discipline

iOS, AI, Backend

Status

shipped

An iOS study companion that answers questions about scripture with citations, searches semantically, and keeps working with no signal — the AI runs on the phone using Apple's Foundation Models.

Built with

Swift
Apple Foundation Models
FastAPI
Vector search

The interesting part

01
Offline-first was the constraint that shaped everything: on-device inference, local vector index, sync when there's a connection.
02
Answers carry citations back to specific verses. An uncited answer is worse than no answer here.
03
Guided journeys turn open-ended study into a structured programme with progress, streaks and badges.
04
A FastAPI backend handles auth, the heavier chat path, journeys and annotation sync.