OutSystems and Mendix can both handle enterprise apps and AI agents, and the better choice depends on what your organization needs most. OutSystems, the Agentic Systems Platform, gives professional teams a unified environment to engineer, orchestrate, and govern mission-critical apps and AI agents at scale. Mendix fits organizations that want business users closely involved, structured process orchestration, or deployment into SAP and Siemens industrial environments.
Is OutSystems still a low-code development platform?
Yes, low-code is still the foundation. Apps are built in a visual, model-driven environment, which is what lets teams move quickly and reuse components. What has changed is everything built around that foundation.
OutSystems now positions itself as the Agentic Systems Platform, with Mentor for AI-assisted development, Agent Workbench for building and governing AI agents, and Data Fabric for enterprise data, all on the same platform.
Does OutSystems support custom code and enterprise integrations?
Yes. When the visual model isn’t enough, developers can write custom logic in C# with .NET libraries and use it across apps as reusable actions.
For enterprise integrations, teams can connect to REST APIs, reach systems like Salesforce, SAP, Snowflake, SQL Server, and Oracle through Data Fabric, and give apps and agents access to outside tools through MCP.
Can OutSystems run on premises or in a private cloud?
Yes, in two ways. With Self-hosted ODC, apps, data, and agents operate in your own Kubernetes cluster in a private cloud, a public cloud, or your data center. OutSystems hosts the central platform services and automates platform updates, and your team looks after the Kubernetes infrastructure. That setup still connects to OutSystems cloud services, so it isn’t air-gapped.
Teams on OutSystems 11 can also deploy fully self-managed, on premises or in a private cloud. Self-hosting is available as an add-on in certain plans.
Which is easier to learn, OutSystems or Mendix?
Both are low-code solutions with a visual development environment and drag-and-drop functionality, so the learning curve is shorter than with traditional coding.
OutSystems mainly targets professional developers. ODC Studio, its integrated development environment, includes pre-built templates to speed up new apps.
Mendix markets Studio Pro to professional and citizen developers alike, with app logic built in microflows. Teams that only need simple apps for business users inside Microsoft 365 may also look at Power Apps.
What happens to my applications if I leave OutSystems?
Under the OutSystems subscription agreement, customers can detach a copy of their applications in source code when a subscription ends. They have to request it in writing within 30 days of the end of the term, settle any remaining fees, and follow the process OutSystems provides, subject to the limits set out in its documentation.
OutSystems 11 has a documented detach process. For ODC apps, confirm the detachment approach with your OutSystems account team, since some apps may need changes to work outside the platform.
OutSystems and Mendix have historically been competitors in low-code development, and both now offer AI assistance, agent development, and tools for complex enterprise software. Their approaches differ in who they primarily serve and how they bring applications, people, and AI together.
OutSystems focuses on professional engineering teams responsible for custom applications and agentic systems, while Mendix places greater weight on collaboration between business and IT, structured processes, and a wide range of infrastructure choices.
Those priorities point to two different enterprise scenarios:
The comparison below examines their capabilities, deployment models, pricing, and customer feedback to help you evaluate the trade-offs.
OutSystems pairs Mentor for app development with Agent Workbench, a dedicated environment for agents, so both move through one governed lifecycle. Mendix puts Maia at the core of its AI offer and builds agents inside Mendix apps with Agents Kit.
Mentor is the AI development experience in OutSystems Developer Cloud (ODC), generally available in its current form since March 2026. It uses application context to generate new applications and modify existing ones.
Developers can use Mentor to:
Since October 2026, OutSystems Agent Experience has been generally available, so external coding agents such as Claude Code, Cursor, Codex, and Kiro can build on the OutSystems platform with its governance and guardrails applied.
Agent Workbench supports agent creation, enterprise tools through model context protocol (MCP), and multi-agent orchestration with human oversight. It also supports multiple model providers, so teams can change models without rebuilding agents.
Maia provides AI assistance across Mendix Portal and Studio Pro. Maia Plan helps define requirements and start applications, while Maia Make generates and modifies pages, data models, business logic, and workflows through natural-language prompts.
Mendix also supports external coding assistants through its Studio Pro MCP server, while OutSystems now offers generally available Agent Experience.
For agent development, Agents Kit 2 supports Agent Editor, MCP connections, and integrations with AI providers such as OpenAI, Amazon Bedrock, and Google Gemini.
Note: Agent Editor currently supports two text-generation providers, Mendix Cloud GenAI and Azure AI Foundry. Its knowledge bases work only with Mendix Cloud GenAI, which involves an additional purchase.
OutSystems focuses on professional development teams, with C# extensibility and reusable architecture for complex application portfolios. Mendix places greater focus on collaboration, with Portal tools that put business stakeholders and developers in the same backlog.
OutSystems Developer Cloud (ODC) combines visual development with custom code and shared components, giving developers control over complex application logic without having to build everything from scratch.
Three capabilities stand out:
Anyone with Mentor access can also describe an app in the ODC Portal and publish a working draft, which developers then open in ODC Studio for complex logic, integrations, or advanced UI.
Customer results: HEINEKEN uses OutSystems Mentor in its effort to automate 15 million hours, with the goal of shortening development cycles while keeping code quality high. When the team uploaded an app’s business requirements to Mentor, it generated 80% of the app, from the data model and server-side logic to the essential screens. That gave developers a working foundation within minutes, so they could spend their time on refinements and new features.
"What makes OutSystems an asset for our federated development model is that it is not limited to just 1% of use cases; we can build anything we want."
Mendix states that Studio Pro serves fusion teams, which it defines as business stakeholders and developers on a shared platform. Mendix Portal extends that model into project work:
Professional developers still have code-level options, with Java actions for server logic, JavaScript actions for client logic, pluggable widgets, and reusable modules from the Mendix Marketplace.
Note: Studio Pro on macOS is in public beta for Apple Silicon Macs, and Mendix lists native mobile development and document templates as unavailable there.
OutSystems styles web apps, mobile apps, and PWAs with CSS through shared UI design frameworks, so brand and UX teams keep one styling language and one set of skills across every channel. Mendix covers the same channels, but its native mobile apps switch to React Native and a separate JSON-based styling format.
OutSystems Developer Cloud (ODC) keeps the interface, data, and business logic of an app in one visual environment, so teams can change how an app looks and how it works in the same place.
Three tools shape what users see:
Customer results: Christelijke Mutualiteiten, a Belgian health insurance fund with 4.5 million members, built its My CM experience with OutSystems in nine months with five developers. That one effort produced native iOS and Android apps, a customer web portal, and an internal customer service app.
"I was a believer in OutSystems from the beginning, and it has lived up to my expectations. We deliver faster, and our users and customers appreciate the improved user experiences we now serve them."
Mendix combines Atlas UI, its customizable interface framework, with web and mobile development in Studio Pro. Teams can use prebuilt layouts, templates, and custom components to create branded applications.
For mobile development, Mendix offers two approaches:
Mendix supports offline data storage and synchronization for mobile applications. Developers can also extend interfaces through custom React and React Native widgets.
Keep in mind: Mendix styles web and PWA screens through its Atlas theme, while native mobile screens use JSON-based styling. Teams that develop across these channels need to maintain both approaches.
OutSystems connects enterprise data and application context through Data Fabric and the Enterprise Context Graph, giving apps and agents access to business information and awareness of the systems around them.
Mendix takes a semantic approach with Graph Studio, a dedicated knowledge graph that maps relationships across business domains.
Data Fabric gives apps and agents one virtual view of structured and unstructured data, with prebuilt connectors for Salesforce, SAP, Snowflake, and databases such as SQL Server and Oracle.
Admins set up each connection once, teams reuse it across the app portfolio, and sources appear according to user roles.
Two more pieces extend that context:
OutSystems also introduced Knowledge Bases in beta in July 2026. This capability lets applications and agents search uploaded documents semantically, with permissions for managing and accessing knowledge collections.
Mendix offers Graph Studio, a dedicated enterprise knowledge graph product. Mendix states that Graph Studio connects business entities and relationships across existing data sources without moving the underlying data.
Its capabilities include:
For example, a manufacturer could connect supplier records, component dependencies, and quality data through Graph Studio. An AI agent could then trace which suppliers and products are associated with an affected component.
Note: Graph Studio is also part of Siemens' Intelligence Center X offering. Its availability and licensing should be confirmed separately, as Mendix does not publish a standard Graph Studio price.
OutSystems builds workflows in ODC alongside the apps and agents they serve, so human steps, agent steps, and events connect directly to custom app logic.
Mendix treats process orchestration as a platform capability of its own, with a workflow engine for structured processes and case management for less predictable work.
Workflows in ODC, generally available since July 2024, let teams map out a business process visually and connect it to the apps people already use, so work moves between people, systems, and AI agents without manual handoffs:
Example: An insurer could start a claims workflow when a new claim arrives, have fraud and coverage agents review it at the same time, and send any uncertain result to an adjuster inside the same claims app.
Mendix states that Process Orchestration coordinates business events, AI signals, people, and systems in one traceable process, with an audit trail for every handoff.
Two tools carry that work:
Just remember that Mendix documentation advises against workflows for open-ended, unpredictable, or outcome-driven processes, and its Dynamic Case Management offering for that work is in private beta.
OutSystems keeps quality checks, security reviews, and AI agent controls in one place, so IT teams know what’s going into production and how their agents behave once they’re live. Mendix also offers built-in deployment and admin tools, but how much it automates depends on where your apps are hosted.
Every app and agent moves through development, QA, and production stages in ODC, and OutSystems APIs connect each step to Jenkins, Azure DevOps, or another CI/CD tool.
Controls along the way include:
For larger estates, Asset Portfolios let enterprises group apps, workflows, agents, and libraries under central governance, with additional portfolios available as paid add-ons. Admins can also grant, revoke, and audit Mentor access.
Mendix 11 apps use Git-based version control, while Mendix Pipelines automates builds, unit tests, and deployments on a Git push, a schedule, or a manual run. A Maia Best Practice Recommender step can stop a release when it finds errors or deprecated patterns, which keeps known issues out of production.
Control Center gives admins one view of the Mendix landscape, with roles, audit logs, app portfolios, GenAI and Maia consumption, and software composition policies for the components inside each app.
Note: Mendix Pipelines is available for licensed apps on Mendix Cloud, Mendix on Kubernetes, or Mendix on Azure, and the Deploy API works only on Mendix Cloud. Teams on other hosting options need their own CI/CD setup.
OutSystems pairs managed cloud hosting with a self-hosted option that retains automated platform updates, giving enterprises more control over where apps and data operate. Mendix offers a broader range of deployment targets, with capabilities and costs that vary by hosting model.
By default, OutSystems manages ODC on AWS in regions across the Americas, Europe, the Middle East, Africa, and Asia Pacific, so teams can pick the region that fits their data residency rules. Two options give enterprises more control:
For teams that want to manage the whole stack themselves, OutSystems 11 offers self-managed deployment on premises or in a private cloud.
Mendix deployment options fall into three groups:
Before you commit: Mendix supports one deployment platform type per app at a time, and available feature sets vary by hosting environment. Teams should confirm that their preferred deployment option supports the capabilities they need.
OutSystems uses custom enterprise pricing, while Mendix publishes starting prices for its Standard plans and quotes Premium through sales.
Their licensing models measure different things, with OutSystems focused on application complexity and users, and Mendix on application plans, users, and infrastructure.
OutSystems pricing is built from three factors:
Every ODC subscription includes development, non-production, and production runtimes, business-hours support, a 99.5% uptime guarantee, and ISO 27001 compliance. The IDE and CI/CD tools come at no extra cost, so teams don’t license developer tooling separately.
Personal Edition is free for development and experimentation, with test apps that aren’t licensed for production use.
Mendix sells its paid tiers in One App and Unlimited Apps versions. Mendix says the two are technically identical and differ only in price, with One App aimed at a single large app and Unlimited Apps at a planned portfolio.
On both paid tiers, hosting on Mendix Cloud, Azure, Kubernetes, SAP BTP, or servers costs extra, and compute resources aren’t part of the license price.
Mendix doesn’t charge for developers or anonymous users, offers more favorable pricing for external users, and lowers the per-user price as user volume grows.
OutSystems and Mendix both hold Leader positions in the 2026 Gartner® Magic Quadrant™ for AI-Augmented Low-Code Application Platforms, with recognition for their enterprise application development capabilities and growing focus on AI.
OutSystems is a Leader in Gartner’s 2026 Magic Quadrant for AI-Augmented Low-Code Application Platforms for the 10th time, with recognition for its Completeness of Vision.
Mendix is also a Leader in Gartner’s 2026 Magic Quadrant for AI-Augmented Low-Code Application Platforms, its 10th year in a row. It’s also a Customers’ Choice in Gartner Peer Insights for enterprise low-code platforms.
On G2, OutSystems averages 4.5 out of 5 across 1,810 reviews. In the Fall 2026 Grid® Reports, it took the #1 spot in the Enterprise Grid for AI App Builders and was named a Leader in both AI Agent Builders and Agentic AI.
Development experience is a big part of why OutSystems scores well on user satisfaction in G2’s reports, and a government account representative at a small business shared:
“I love using OutSystems to develop enterprise applications. The platform is incredibly agile, powerful, robust, and secure. Application development is very powerful and versatile, making it the best option on the market for me.”
The same development model holds up on large, customer-facing projects. United Rentals built Tool Manager, a web and native mobile app that tracks tool activity through IoT-enabled jobsite containers, with OutSystems in four months, at about one-third of the projected cost of traditional development. The service supports more than 500,000 customers across six countries, and United Rentals reports $1 billion in revenue potential from the app.
"With OutSystems, our developers spend less time on infrastructure and back-end management and more on delivering meaningful functionality to the business. That’s possible thanks to capabilities like the AI Mentor Studio that keep our code quality high and prevent cybersecurity vulnerabilities before code is deployed."
Some users would like a simpler pricing model, including this solution architect on G2:
“OutSystems is expensive, with high licensing costs that scale with users and application objects, making it hard to justify for small teams or low‑margin products. Pricing model is complex and hard to predict as apps grow”
On G2, Mendix averages 4.4 out of 5 across 417 reviews and carries G2’s AI Verified badge, which shows that at least 10 reviewers have confirmed using its AI features.
Much of Mendix’s appeal comes from how much of an app teams can assemble from prebuilt components. A G2 user at a small business shared how that played out:
“I like Mendix for its out-of-the-box connectors and ease of use, which means we don’t have to write integrations from scratch, allowing us to really accelerate our solution software development. Mendix makes it easy to build solutions and is faster than traditional full-stack development.”
Where users do see room to improve is Maia, Mendix’s AI assistant. Some teams feel it hasn’t caught up with the rest of the platform yet. One user wrote:
“I think that Maya AI needs to improve. I find that the support provided by Maya AI is not as valuable as it seems to be right now. If Maya AI is going to help us in the future, it should be able to handle queries more effectively, like dealing with entities and attributes. Right now, it doesn’t quite meet my expectations.”
OutSystems and Mendix both support complex enterprise applications and AI agents, with different strengths in how teams develop, govern, and host their software.
You can explore the platform with OutSystems Personal Edition. For enterprise needs, schedule a demo with an OutSystems specialist to see how its application development and agent orchestration capabilities fit your needs.
