Mendix

Mendix is a low-code platform for building, running, and coordinating apps and agents for hybrid workforces. It suits teams that need visual development alongside custom code, enterprise integrations, and cloud or on-premises deployment. Its free plan makes exploration accessible, but production use gets expensive quickly and requires a paid tier for support and uptime guarantees.

Overview

Studio Pro models application logic, data, workflows, and user experience visually, while still allowing custom code. Mendix also brings AI into planning, generation, deployment, and operations, and can connect external models, agents, knowledge bases, and tools. That breadth is useful when an organization wants one platform for both rapid visual modeling and more tailored development; it may be more platform than a small project needs.

The Connect Catalog can be populated with connectors to enterprise sources including Siemens Teamcenter, SAP, and other Mendix applications. Deployment can target public cloud or on-premises environments, including air-gapped setups. Mendix was founded in Rotterdam in 2005 and acquired by Siemens in 2018.

Key features

• Visual modeling with code extensions: Teams can express core app structures as visual models and use custom code where those models are not enough.
• AI-assisted development: AI is incorporated across planning through operations, with enterprise context and standards as its grounding. External LLMs, agents, knowledge bases, and tools can also be connected.
• Enterprise connectivity: The Connect Catalog supports connectors to sources such as SAP and Siemens Teamcenter, making Mendix more relevant to organizations with established systems to integrate.
• Deployment choice: Public cloud, on-premises, and air-gapped deployments give organizations options where hosting constraints matter.
• Built-in application capabilities: Mendix includes a database, user authentication, API integrations, and mobile publishing.

Mendix says security, governance, privacy, and compliance are platform priorities. Its certifications, reports, and standards are available to customers and prospects upon request. Its certified business continuity system is available to enterprise-license customers and provides zero downtime in the event of a Mendix Runtime outage.

Pricing

• Free — free: Includes one deployment environment per application and unlimited users. It is suited to exploring Mendix, prototypes, and small personal applications. The single-environment cap, lack of product support, and absence of guaranteed availability make it a poor fit for production systems that need operational assurances.
• Standard — One App — $1,090 a month: Covers one app with up to three environments, Standard support from 9 AM to 5 PM, and a 99.5% uptime guarantee. Cloud deployment may cost extra. This is aimed at a business application that needs support and a guarantee without paying for unlimited apps.
• Standard — Unlimited Apps — $2,725 a month: Includes unlimited apps, up to three environments per app, Standard support from 9 AM to 5 PM, and a 99.5% uptime guarantee. Cloud deployment may cost extra. It suits teams with several apps, but costs substantially more than the one-app tier.
• Premium — custom pricing: Intended for mission-critical core systems, with flexible environments per app and Premium 24/7 support, excluding local holidays. Premium tiers are for organizations that need round-the-clock support and more deployment flexibility.
• Premium — One App and Premium — Unlimited Apps — custom pricing: Both include flexible environments, Premium 24/7 support, and a 99.95% uptime guarantee; the former is for one app, while the latter covers unlimited apps. A quote is required.

Platforms

Mendix supports Android, iOS, Linux, macOS, Windows, web, and self-hosted deployment. Mobile publishing is supported, while self-hosting and air-gapped deployment offer options for organizations that cannot rely on public cloud alone.

Who it's for

Mendix is best suited to business and enterprise teams building applications that connect to existing systems or require a mix of visual development and custom code. Free is a sensible starting point for prototypes and small personal apps. Standard fits most business applications, while Premium is directed at mission-critical core systems. Teams with a single, low-stakes app may find the paid Standard price difficult to justify; those needing guaranteed availability should not mistake the free tier for a production plan.

Pros and cons

• Pro: Visual models and custom code coexist, giving teams room to move beyond what a visual-only approach can express.
• Pro: Public-cloud, on-premises, and air-gapped deployment options suit varied hosting constraints.
• Pro: Unlimited users on Free let teams explore or prototype without a user cap.
• Con: Free allows just one environment per app and has neither product support nor guaranteed availability.
• Con: Standard starts at $1,090 a month, with cloud deployment potentially costing extra.
• Con: Premium prices require a quote, so teams cannot compare its cost directly from the listed monthly rates.

Alternatives

For a different low-code option, browse Low-Code Development Platforms. If you want to compare no-code tools, see No-code app builders; for graph-oriented software, Knowledge Graph Software is the relevant category. Teams prioritizing AI-focused app creation can explore AI App Builders, while those seeking an IDE-oriented approach can review Web Development IDEs.

Convertigo is another freemium option, with a free plan and free trial, and support for web, mobile, API, and self-hosted platforms. FlutterFlow offers a free plan and supports Android, iOS, web, desktop, and Linux platforms. Omnis Studio has a free Community Edition and free trial, with deployment limited by concurrent users. Protogrid is a freemium option with support for web, mobile, API, and self-hosted platforms. AgilePoint NX offers a free Community Edition with 25 named users and two applications. Alpha Anywhere has a free developer edition for web and mobile development, with connections to any data source and unlimited apps. Anvil offers a free plan with unlimited apps, cloud hosting, one developer, and a 50,000-row Data Table. Joget has a free tier for three users and a free trial.

Verdict

Choose Mendix if your team needs enterprise-oriented low-code development that can combine visual models, custom code, integrations, and flexible deployment. Its free tier is a useful way to explore, but the one-environment limit and lack of support or guaranteed availability make it unsuitable for dependable production use. Look elsewhere if your project needs only a small, inexpensive app or if the Standard entry price is out of reach.