---
title: db4o Reviews
meta_title: 'db4o Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter reviews by the users' company size, role or industry to find
  out how db4o works for a business like yours.
date_modified: '2024-10-06'
parent_category:
  name: Mobile Development
  url: https://www.g2.com/categories/mobile-development
---

# db4o Reviews
**Vendor:** Mono Project  
**Category:** [Mobile Development Platforms](https://www.g2.com/categories/mobile-development-platforms)
## About db4o
Open source object database for .NET and Mono. Distributed by db4objects under the GPL or commercial license based on your needs. Also available for .NET CompactFramework and Java, with the same feature set and database file format, enabling cross-platform development. The db4o engine comes as a single 600kB dll with no dependancies outside of core Mono.






- [View db4o pricing details and edition comparison](https://www.g2.com/products/db4o/reviews?section=pricing&secure%5Bexpires_at%5D=2026-07-21+09%3A19%3A48+-0500&secure%5Bsession_id%5D=0de185f9-c251-4e73-83b3-187bb1bf11b7&secure%5Btoken%5D=655c8b5e920ff11d84fb544cd052017d97996ddb57e3bc16bffc50cd5aac33a0&format=llm_user)

## db4o Features
**Functionality**
- Ease of Use
- File Management
- Multi-Language Support
- Customization
- Straight-Out-the-Box Functionality
- Help Guides
- Patching & Updates

**Agentic AI - Mobile Development Platforms**
- Adaptive Learning
- Natural Language Interaction
- Proactive Assistance

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