Ditto vs PouchDB

Ditto is a distributed database and Edge SDK for applications that must operate when networks are unreliable or unavailable. Its embedded database lets devices read and write offline, then synchronize through Bluetooth Low Energy, peer-to-peer Wi‑Fi, or a local area network without internet access or extra hardware. Devices using the SDK can form wireless mesh networks for real-time sharing in bandwidth-constrained environments. Ditto automatically resolves conflicts between peers and with the cloud when available. The platform supports Android, iOS, Windows, and Linux, with SDK languages including Swift, Kotlin, JavaScript, C#, C++, Rust, Flutter, and React Native. The Free plan costs nothing and includes 10 cloud device connections, 2GB storage, 5GB transfer, limited support, and no SLA.

PouchDB is a free, open-source JavaScript database for browser and Node.js applications. It keeps documents locally so applications can continue working offline, then synchronizes data bidirectionally with CouchDB-compatible servers when online. The same API is used in browsers and Node.js. Browser storage uses IndexedDB by default, while the documented Node.js adapter uses Node’s native SQLite module with Node.js versions later than 22.5.0. Supported server integrations include CouchDB 1.x, 2.x, and 3.x, Cloudant, and PouchDB Server. PouchDB is framework-agnostic and can work with Angular, React, Ember, Backbone, or another framework. It also runs with Cordova/PhoneGap, NW.js, Electron, and Chrome apps. Documents must be serializable as JSON, and attachments can be base64-encoded strings or Blob objects. Direct synchronization with a non-CouchDB database requires a backend that speaks the CouchDB replication protocol. Platforms listed are Android, API, extension, iOS, self-hosted, web, and Windows. The project lists GitHub Discussions, Slack, and Stack Overflow for discussion.