Licensing information:
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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db4objects 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:
- OME - a new tool designed for db4o object database browsing and maintenance
- 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 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, without runtime reporting duties and packed with free licenses and support credits, it makes your commercial engagement with db4objects as easy as deploying db4o into your products.
dRT - Commercial db4o Runtime Licenses
Three tiers of license editions provide competitive pricing for commercial db4o Runtime Licenses. The unit prices are subject to steep discounts when ordered in large volumes, and negotiable if list prices compute to db4o runtimes costing more than 3-5% of your product's final retail list price.
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db4o In-Process
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The current version of the db4o database engine software for all Java and .NET platforms.
db4o In-Process runs in the same process space as your application and supports all functions as specified except the option to connect to a database server with Db4o*.openClient (as opposed to Db4o*.openFile).
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db4o Client/Server
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The current version of the db4o database engine software for all Java and .NET platforms.
db4o Client/Server typically runs as a separate process from your application supporting one or more client connections over the network and with all functions as specified.
db4o Client/Server is licensed for an unlimited number of database connections.
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db4o Micro
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The current version of the db4o database engine software solely for the J2ME and Microsoft .NET CompactFramework platforms
db4o Micro supports all functions as specified except the option to connect to a database server with Db4o*.openClient (as opposed to Db4o*.openFile).
The minimum order volume is 1,000 licenses.
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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.
dDN - Minimum Support and Software Maintenance
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db4o Developer Network (dDN)
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The dDN membership is the minimum support package and includes:
- Personalized, private and tracked 24/7 case support through our exclusive dDN Customer Portal (screenshot) with a guaranteed response time of 24 hours or less
- A lock-in of any negotiated rates and conditions for all future purchase of
db4o licenses, that facilitates budgeting and planning
- Free updates and upgrades for all previously purchased or distributed db4o licenses
- Exclusive access to db4o's stable versions
dDN memberships are charged per named developer per year.
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US$ 1,200
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