“Supabase documentation”
“- PostgreSQL database.”
“- Authentication.”
“- Realtime subscriptions.”
“Supabase alone | Excellent | Requires local cache | Requires custom implementation | Application-defined”
“Firebase Firestore documentation”
“Firebase Cloud Firestore is one of the easiest ways to introduce offline functionality.”
“- Local persistence of previously accessed data.”
“- Automatically queuing writes.”
“- Realtime listeners for connected devices.”
“Firestore uses last-write-wins when multiple changes affect the same document.”
“AWS AppSync documentation”
“- GraphQL APIs.”
“- Conflict detection and resolution.”
“There is an important caveat: AWS's current migration documentation describes moving away from DataStore toward Apollo clients and AppSync extensions.”
“PowerSync documentation”
“PowerSync adds the missing offline-first synchronization layer.”
“- Local SQLite storage.”
“- Background synchronization.”
“- You need to design your conflict-resolution rules.”
“- Embedded database on the mobile device.”
“- Persistent offline writes.”
“- Peer-to-peer synchronization capabilities.”
“- More specialized architecture.”
“Ditto official website”
“Unlike traditional backend platforms, Ditto supports peer-to-peer synchronization using available local communication technologies.”
“It uses CRDT-based synchronization to help reconcile concurrent changes.”
“- Designed for unreliable network environments.”
“- Proprietary platform.”