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Ditto vs ObjectBox

Ditto: Edge-native document database that syncs peer-to-peer over Bluetooth, P2P Wi-Fi and LAN without internet. ObjectBox: Fast on-device object database with built-in HNSW vector search and an optional commercial sync server.

key differences

  • Ditto is primarily a document database; ObjectBox is object.
  • Ditto is built for larger datasets (≤ 10 TB) than ObjectBox (≤ 100 GB).
  • Horizontal scaling is native in Ditto and none in ObjectBox.
  • Transactions: Ditto offers limited ACID; ObjectBox offers full.
  • Only Ditto has json, pub/sub.
  • Only ObjectBox has transactions, secondary indexes, vector search, in-memory.

choose ditto for

  • +In-flight crew and cabin apps
  • +Restaurant and retail point-of-sale that must work offline
  • +Defence and field operations on disconnected networks
  • +Replacing Realm Device Sync

best at · Mobile/offline, Edge, Local-first

choose objectbox for

  • +Offline-first Android and Flutter apps
  • +On-device AI features needing local vector search
  • +IoT gateways and embedded Linux devices
  • +Replacing Realm after the Device Sync shutdown

best at · Embedded, Mobile/offline, IoT

DittoEdge-native document database that syncs peer-to-peer over Bluetooth, P2P Wi-Fi and LAN without internet.
ObjectBoxFast on-device object database with built-in HNSW vector search and an optional commercial sync server.
overview
Primary model
Document
Object
Also supports
–
Vector
Type
Database engine
Embedded library
Status
Active
Active
Developer
DittoLive Inc.
ObjectBox Ltd.
First release
2020
2017
Latest version
5.1.0 (JS SDK) (Aug 19, 2026)
Java 5.4.2 (May 6, 2026)
License
ProprietaryProprietary
ProprietaryFree closed-source core; Apache-2.0 language bindings
Free tier
✓
✓
popularity
WhichDB Score
4.3
12.4
Rank
#411
#269
GitHub stars
–
4.6K
Stack Overflow questions
–
416
scale & guarantees
Comfortable data size
Medium (≤ 10 TB)
Small (≤ 100 GB)
Horizontal scaling
Native
None
Multi-region
Active active
None
ACID
Limited
Full
Consistency
Eventual, Causal
Strong
Schema
Schemaless
Strict
Architecture
Embedded, Distributed, Multi primary
Embedded
deployment
Self-hosted
✓
✓
Vendor-managed cloud
✓
—
Serverless
—
—
Embedded
✓
✓
Edge
✓
✓
Clouds
–
–
capabilities
Transactions
—
✓
Joins
—
—
Secondary indexes
—
✓
Full-text search
—
—
Vector search
—
✓
Geospatial
—
—
JSON
✓
—
Change data capture
—
—
Triggers
—
—
Stored procedures
—
—
Materialized views
—
—
TTL / expiry
—
—
Pub/Sub
✓
—
Columnar storage
—
—
In-memory
—
✓
Durable persistence
✓
✓
Compression
—
—
Encryption at rest
—
—
Role-based access
—
—
Time travel
—
—
Branching
—
—
Online schema changes
—
—
Streaming ingest
—
—
Offline sync
✓
✓
Runs in WebAssembly
—
—
interfaces
Query languages
DQL (Ditto Query Language)
ObjectBox Query Builder API
Client languages
Swift, Kotlin, JavaScript, C#, C++, Rust, Dart
Java, Kotlin, Dart, Swift, C, C++, Go, Python
Best for
Mobile/offline, Edge, Local-first, IoT
Embedded, Mobile/offline, IoT, Vector search
Add more to this comparisonNot sure either fits? Try smart match

Ditto vs ObjectBox: FAQ

What is the difference between Ditto and ObjectBox?

Ditto: Edge-native document database that syncs peer-to-peer over Bluetooth, P2P Wi-Fi and LAN without internet. ObjectBox: Fast on-device object database with built-in HNSW vector search and an optional commercial sync server. Ditto is primarily a document database; ObjectBox is object. Ditto is built for larger datasets (≤ 10 TB) than ObjectBox (≤ 100 GB). Horizontal scaling is native in Ditto and none in ObjectBox.

When should I choose Ditto over ObjectBox?

Choose Ditto for in-flight crew and cabin apps; restaurant and retail point-of-sale that must work offline; and defence and field operations on disconnected networks. Choose ObjectBox for offline-first Android and Flutter apps; on-device AI features needing local vector search; and IoT gateways and embedded Linux devices.

Is Ditto or ObjectBox more popular?

ObjectBox ranks #269 on the WhichDB Score (12.4/100) and Ditto ranks #411 (4.3/100). Popularity is not fit: check the requirements that matter for your project.

Are Ditto and ObjectBox open source?

No. Ditto is proprietary, closed-source software. No. ObjectBox is proprietary, closed-source software. License: Free closed-source core; Apache-2.0 language bindings.