1. [Home](https://www.g2.com/)
2. ...
3. [Mobile Development Platforms](https://www.g2.com/categories/mobile-development-platforms)
4. [db4o Discussions](https://www.g2.com/products/db4o/discuss)

[
 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_ff9f8c841f63a8e4168f3f342dceb34f/db4o.png "Product Avatar Image")
](/products/db4o/reviews)

[

db4o

](/products/db4o/reviews)

0 ratings

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.

Show More

When users leave db4o reviews, G2 also collects common questions about the day-to-day use of db4o. These questions are then answered by our community of 850k professionals. Submit your question below and join in on the G2 Discussion.

* * *

### 0.0

Nps Score

### All db4o Discussions

Search

Most CommentedMost HelpfulPinned by G2Newest

All DiscussionsDiscussions with CommentsPinned by G2Discussions without Comments

FilterFilter

Filter byExpand/Collapse 

Sort by

Most Commented

Most Helpful

Pinned by G2

Newest

Filter by

All Discussions

Discussions with Comments

Pinned by G2

Discussions without Comments

Sorry...

There are no questions about db4o yet.

## Start a New Software Discussion

Have a software question?

Get answers from real users and experts

[Start A Discussion](/products/db4o/discussions/new)

* * *

 ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_ff9f8c841f63a8e4168f3f342dceb34f/db4o.png "Product Avatar Image")

### Have you used db4o before?

Answer a few questions to help the db4o community

[
Yes
](javascript:void(0))[
Yes
](https://www.g2.com/authorize?form=signup&return_to=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fdb4o%2Fdiscuss%3Fsmall_ask%3Ddb4o)
No