Altova DiffDog vs SQL Delta
Altova DiffDog
altova.comSQL Delta
sqldelta.comSide by side
| Figure | Altova DiffDog | SQL Delta |
|---|---|---|
| Price from | — | — |
| Free plan | — | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Windows | Yes | Yes |
| Plans published | 2 | 10 |
| Spec score · Database Schema Comparison Tools | 8.3 (#4) | 8.1 (#6) |
| Founded | 1992 | 1991 |
| Headquarters | Vienna, Austria; Marblehead, Massachusetts, United States | Sydney, New South Wales, Australia |
| Intended users | Altova describes DiffDog as a technical diff/merge tool for developers and IT professionals. | The home page describes SQL Delta as a tool for development teams managing database changes through releases. |
| Purpose | DiffDog compares and merges text and source-code files, XML and JSON files, Word documents, directories, and database schemas and content. | SQL Delta compares database schemas and data so teams can review drift and synchronize changes before deployment. |
| Trial | The trial unlocks all features for 30 days after the user requests an evaluation license, which is sent by email. | The latest full product download can be evaluated for 14 days before a registration code is needed. |
Plans
Altova DiffDog
- DiffDog 2026 Professional Edition$189, paid once
- DiffDog 2026 Enterprise Edition$269, paid once
SQL Delta
- SQL Delta for MySQL — Single license$185, paid once
- SQL Delta for Oracle — Single license$370, paid once
- SQL Delta for SQL Server — Single license$370, paid once
- SQL Delta for MySQL — 5 Licenses$510, paid once
- SQL Delta for MySQL — 10 Licenses$920, paid once
- SQL Delta for Oracle — 5 Licenses$1,020, paid once
- SQL Delta for SQL Server — 5 Licenses$1,020, paid once
- SQL Delta for MySQL — Site License$1,395, paid once
- SQL Delta for SQL Server — 10 Licenses$1,850, paid once
- SQL Delta for SQL Server — Site License$2,775, paid once
In their own words
Altova DiffDog
Altova DiffDog has no write-up on Specifiction yet; its figures are above.
SQL Delta
SQL Delta is a Windows tool for comparing database schemas and data before changes reach production. SQL Delta 7 compares source and target databases that use the same server type; SQL DXP is intended for comparisons across different server types. Schema Compare shows structural differences in live databases or snapshots and lets users select what to include in a deployment script. Data Compare identifies row-level differences between environments. Users can review and edit synchronization scripts before executing them against a target, and projects can add custom script to deployment scripts. SQL Delta can save HTML reports and XML snapshots for release reviews or recovery work. Project completion events and command-line execution support automated runs. Editions are listed for SQL Server, MySQL, Oracle, and PostgreSQL. A separate Read Only Edition allows comparison and script generation but prevents direct script execution. The latest full product download has a 14-day trial. The MySQL single-license plan is $185 as a one-time purchase and includes a two-year software update subscription; purchase terms also describe a perpetual license.