A deep dive into how Fit Host manages two-way synchronization: zero latency writes to Drift SQLite, automatic background sync to Supabase, and conflict resolution.
Mobile interface reference for Understanding Cloud Synchronization and Local Drift Cache
Every action you take in the app—logging a set, recording water, updating settings—is written immediately to your phone's embedded SQLite database. This ensures zero network latency and seamless offline usage.
A background listener monitors active internet connectivity. When online, Fit Host immediately queues any uncommitted local updates for cloud transmission.
Your data is transmitted over TLS to your Supabase PostgreSQL backend. Strict Row Level Security policies guarantee that only your verified auth token can read, write, or modify records belonging to your account.
If you make changes on multiple devices while offline, Fit Host uses timestamp-based resolution (last-write-wins with millisecond accuracy) to prevent data corruption.
Step-by-step diagnostic checklist to verify internet access, resolve sync delays, force a manual sync, and ensure your local records are protected.
Guest mode does not sync to cloud—create an account to enable backup.
Understand the differences between local-only guest storage and Supabase cloud synchronization, and how account linking seamlessly preserves your history.
Guest mode is 100% private and offline-contained.
Fit Host is a dedicated mobile application for iOS and Android. Experience sub-millisecond offline workout logging, accurate macro tracking, and two-way cloud sync.
