The db4o engine is free when licensed under the General Public License (GPL).
A commercial license is required if you want to embed
db4o in a commercial product and/or receive professional support.
For guidance on licensing, please download this free whitepaper about db4objects' dual licensing model.
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Commercial Packages and Prices
Versant offers the following commercial packages:
- Licensing - for commercial use with steep discounts for large unit counts
- Support - recommended for commercial users, comes in two levels:
- Professional Services - consulting on db4o applications,
implementations of custom features, etc. To support these services we provide:
- XtremeConnect - allows developers to directly connect with a db4o expert for a remote pairing session.
Read more about these packages and basic pricing information - or simply contact us to get your personal, free quote now!
dDN - Standard Support and Maintenance
dDN Enterprise - The Total Package for Commercial Developers
dDN Enterprise is a bundle of everything you need to successfully bring innovative
products with db4o to market - fast!
Priced with an annual flat fee, it makes your commercial engagement with Versant
as easy as deploying db4o into your products.
db4o Developer Network (dDN) Enterprise
The dDN Enterprise subscription is the professional support package for commercial
product developers and includes:
- Unlimited engineering support (including free updates, upgrades,
e-mail and web based support, stable releases) and all the features found in a standard
dDN support package.
- Live pairing access to Versant's expert db4o core engineering team with 15 hourly
credits/year for live pairing sessions through the XtremeConnect program
- Exclusive access to "Stable" releases (7.x onwards)
- Customized features - options may include db4o Runtime Licenses (dRT), free db4o Runtime Licenses for trial
To request information on Commercial Packaging Options contact your Account Manager.
Download dDN Enterprise Product Information (PDF) here!
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dRT - Commercial db4o Runtime Licenses
The db4o product is licensed for redistribution by providing competitive pricing
for commercial db4o Runtime Licenses. Conceptually, there are 3 types of deployments:
client/server, in-process, micro. Those generally correspond with increasing volumes
of runtimes. The unit prices are subject to steep discounts when ordered in increasing
volumes from 100's of dollars to pennies and negotiable if list prices compute to
db4o runtimes costing more than 3-5% of your product's final retail list price.
db4o Runtime License
The current version of the db4o database engine software for all Java and .NET platforms.
db4o on a single dual core CPU with all functions except the dRS (replication service).
db4o is licensed for an unlimited number of user or process connections.
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db4o Replication System (dRS) is an optional add-on to the above licenses
for all Java and .NET platforms. dRS provides the ability to synchronize data between db4o databases
as well as between db4o and relational database systems with all functions
as specified, excluding the
license for Hibernate.
Each one of your products or CPUs running db4o requires a separate db4o license.
Each one of the above can be licensed with a db4o Runtime License (dRT)
for redistribution outside your organization or with a db4o End User License Agreement (dEL)
for in-house use. dRT and dEL licenses carry the same fee.
Software update and upgrade licenses are provided through dDN memberships.
Get your free, custom quote now!