Most businesses have data stored in a variety of locations, from in-house databases to SaaS platforms. To get a full picture of their finances and operations, they pull data from all those sources into a data warehouse or data lake and run analytics against it. But they don't want to build and maintain their own data pipelines.

Fortunately, it’s not necessary to build everything in-house. We put together this ETL tool comparison guide to help you choose the product that’s the best fit for your business.

Overview

Altova, Attunity, and Stitch are all popular platforms. Here's a side-by-side look at how they stack up against each other.

Focus Transformations Database replication Data ingestion, ELT
Database replication Full table; incremental via hand-coded SELECT statements Full table; incremental replication via change data capture Full table; incremental via change data capture or SELECT/replication keys
SaaS sources None None More than 100
Ability for customers to add new data sources No No Yes
Connects to data warehouses? Data lakes? No / No Yes / Yes Yes / Yes
Transparent pricing Yes No Yes
Support SLAs No Yes Available
Purchase process Options for self-service and talking with sales Requires a conversation with sales Options for self-service or talking with sales. Also available from the AWS store.
Compliance, governance, and security certifications None None HIPAA, GDPR, SOC 2
Data sharing No No Yes, through Talend Data Fabric
Vendor lock-in Annual contracts Licensing issues are not disclosed Month to month or annual contracts. Open source integrations
Developer tools COM-based API (Component Object Module) REST API Import API, Stitch Connect API for integrating Stitch with other platforms, Singer open source project

Let's dive into some of the details of each platform.

Transformations

Altova

Altova MapForce is a data transformation tool. It's a Windows-based IDE that enables you to transform data from one format to another, or from one schema to another, by means of a drag-and-drop user interface. It supports only XSLT (eXtensible Stylesheet Language Transformations) in its Basic Edition, but Professional and Enterprise editions add support for XQuery, Java, C#, C++, and MapForce's proprietary BUILT-IN transformation language.

Attunity

Attunity supports 10 types of simple pre-load global transformations, such as renaming tables and schemas, adding and dropping columns, and converting data types. Users can also build transformations through an Expression Builder graphical interface using SQLite operators and functions.

Stitch

Stitch is an ELT product. Within the pipeline, Stitch does only transformations that are required for compatibility with the destination, such as translating data types or denesting data when relevant. Stitch is part of Talend, which also provides tools for transforming data either within the data warehouse or via external processing engines such as Spark and MapReduce. Transformations can be defined in SQL, Python, Java, or via graphical user interface.

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Connectors: Data sources and destinations

Each of these tools supports a variety of data sources and destinations.

Altova

Altova sells a range of products: desktop development tools, server software, mobile development software, and regulatory solutions. The desktop development tools are available in a bundle as Altova MissionKit, or individually. They include:

  • MapForce — graphical data mapping, conversion, and integration tool that maps data between XML, database, EDI, XBRL, flat file, Excel, JSON, and/or web service, then transforms data or autogenerates data integration code for future execution. MapForce supports different sources and destinations depending on the edition used. Basic Edition supports only XML, XML Schema, and HL7 electronic health information (EHI) files. Professional Edition adds support for flat files and relational databases. Enterprise Edition adds support for EDI formats, JSON files, Excel 2007 and later, and XBRL. None of the editions supports data warehouses or data lakes as sources or targets.
  • XMLspy — graphical schema designer that includes a code generator, file converters, and debuggers
  • StyleVision — a tool for designing reports and forms based on XML, database, and XBRL inputs
  • UModel — UML application modeler that generates Java, C++, C#, or Visual Basic .NET code and project documentation
  • DatabaseSpy — multi-database query, design, and database comparison tool
  • DiffDog — diff / merge utility for files, directories, and database schemas and tables
  • SchemaAgent — tool for analyzing and managing relationships among XML-based files
  • Attunity

    Attunity offers several products: Replicate for data replication, Compose for data ingestion, Enterprise Manager for managing Replicate and Compose tasks, and Gold Client for test data management in SAP environments. Attunity Replicate runs on a Windows or Linux server, and supports about 30 database and file data sources. The software focuses on high-volume and low-latency database replication scenarios, including streaming near-real-time updates. It supports a variety of destinations: cloud data warehouses and data lakes, on-premises data warehouses, flat files, and streaming services. Attunity Compose, which can integrate with Attunity Replicate, comes in two editions, for automating the building of data pipelines to on-premises data lakes and data warehouse.

    Stitch

    Stitch supports more than 100 database and SaaS integrations as data sources, and eight data warehouse and data lake destinations. Customers can contract with Stitch to build new sources, and anyone can add a new source to Stitch by developing it according to the standards laid out in Singer, an open source toolkit for writing scripts that move data. Singer integrations can be run independently, regardless of whether the user is a Stitch customer. Running Singer integrations on Stitch’s platform allows users to take advantage of Stitch's monitoring, scheduling, credential management, and autoscaling features.

    Support, documentation, and training

    Data integration tools can be complex, so vendors offer several ways to help their customers. Online documentation is the first resource users often turn to, and support teams can answer questions that aren't covered in the docs. Vendors of the more complicated tools may also offer training services.

    Altova

    Altova MapForce provides support through a web-based form. Product consulting, including telephone support, is available for an hourly fee. Documentation is provided in the form of PDF-format manuals available for download, and an online version of the same information. The company provides online training materials.

    Attunity

    Attunity provides online, email, and telephone support. Documentation is comprehensive. Digital training materials and on-site classes are available.

    Stitch

    Stitch provides in-app chat support to all customers, and phone support is available for Enterprise customers. Support SLAs are available. Documentation is comprehensive and is open source — anyone can contribute additions and improvements or repurpose the content. Stitch does not provide training services.

    Pricing

    Altova

    Altova provides a 30-day free trial of MapForce (in a bundle with its entire line of developer tools). Licenses start at $999 for one installed user. Altova also prices the software per concurrent user or named user, and sells 5-, 10-, 20-, and 50-user licenses of each type. A support and maintenance package is available at additional cost.

    Attunity

    Pricing isn't disclosed.

    Stitch

    Stitch has pricing that scales to fit a wide range of budgets and company sizes. All new users get an unlimited 14-day trial. After the trial, there's a free plan for smaller organizations and nonproduction workloads. Standard plans range from $100 to $1,250 per month depending on scale, with discounts for paying annually. Enterprise plans for larger organizations and mission-critical use cases can include custom features, data volumes, and service levels, and are priced individually.

    Get started now

    Which tool is best overall? That's something every organization has to decide based on its unique requirements, but we can help you get started. Sign up now for a free trial of Stitch.