There is no single best low-code platform. There is a best fit for where your applications, users and data already live. If you run on Microsoft 365, Power Apps is hard to beat. If your problem is long, rule-heavy processes, look at Appian. If you need a broad portfolio of custom web and mobile apps, OutSystems and Mendix lead. And if your organisation already uses Liferay DXP, or needs portals, content and business applications on one platform, Liferay with ARAD Studio is worth a serious look.
This guide compares the main enterprise low-code application development platforms on what actually decides success: best fit, mobile, AI, pricing model and lock-in. It ends with a one-day proof-of-concept plan, because a vendor demo will never tell you how a platform behaves on your own requirements.
Disclosure: Armantec builds ARAD Studio and delivers Liferay DXP projects. We've tried to be fair about where other platforms are the better choice.
What "enterprise" low-code really means
Most low-code platforms can build a form and a list in an afternoon. Enterprise low-code is judged on what comes after:
- Security and access: single sign-on, role-based access on every screen and API, audit trails
- Data: relational models, migration of existing data, integration with ERP and legacy systems
- Governance: environments, version control, controlled deployments
- Scale and cost: how the platform and its licence behave at 500 or 50,000 users
- Exit: what happens to your applications if you stop paying
A platform that wins the demo can still fail on any of these.
The platforms at a glance
| Platform | Best fit | Mobile | Pricing model | Lock-in |
|---|---|---|---|---|
| OutSystems | Large portfolios of custom web and mobile apps | Strong, including native-style mobile | Quote-based (runtimes, users, applications) | Proprietary runtime |
| Mendix (Siemens) | Custom apps, manufacturing and industrial use cases | Strong, including native mobile | Free tier; paid tiers quote-based | Proprietary runtime |
| Microsoft Power Apps | Organisations standardised on Microsoft 365 | Good, through the Power Apps mobile app | Per user per month (published list price) | Runs only on Power Platform |
| Appian | Process automation, case management, regulated workflows | Available, not the main focus | Per user, per month, per app | Proprietary runtime |
| Liferay DXP + ARAD Studio | Portals, intranets and business apps on one platform, especially existing Liferay users | Responsive web; APIs for mobile apps | Liferay subscription; ARAD by quote | Standard Java/OSGi modules you own |
Platform by platform
OutSystems
A long-standing leader for enterprise application development. OutSystems reports being named a Leader in Gartner's 2025 Magic Quadrant for Enterprise Low-Code Application Platforms for the ninth year running. It handles complex, high-traffic web and mobile applications well and has invested heavily in AI-assisted development and AI agents.
Watch for: pricing is quote-based and tied to runtimes, users and application size, so model the cost of growth, not just year one. Ask how AI agent usage is billed.
Mendix
Owned by Siemens since 2018 and strong in manufacturing and industrial scenarios, with good native mobile support and an AI assistant (Maia) inside the development environment. A free tier makes it easy to evaluate.
Watch for: paid tiers are quote-based, and applications run on the Mendix runtime, so plan your long-term hosting and exit terms.
Microsoft Power Apps
The natural choice if your organisation lives in Microsoft 365, Teams and SharePoint. It's quick for departmental apps, and Copilot is built into the experience. It's also the only major platform here with a published per-user price: Power Apps Premium lists at USD 20 per user per month (lower at high volume), and Microsoft has announced an increase from January 2027.
Watch for: per-user licensing adds up fast for apps used by thousands of people, including partners or citizens. Complex, highly custom applications can outgrow it.
Appian
Built for processes: workflows, case management, process mining and automation, with a data fabric that connects data where it lives. A strong option for regulated, rule-heavy operations.
Watch for: pricing is per user, per month and per app, so costs scale with both headcount and the number of applications.
Liferay DXP with ARAD Studio
Liferay DXP is a digital experience platform: portals, intranets, content, search and workflow on one platform. Its Objects feature provides low-code data modelling with automatically generated APIs. ARAD Studio adds an automated way to build complete business modules on Liferay:
- Describe the requirement to an AI agent (Claude, Codex, Cursor or Copilot); ARAD turns it into an entity model and generates standard Liferay OSGi modules
- Each module includes database tables, secured REST APIs, forms, list and detail screens, approval workflow, audit history, multilingual fields, encrypted confidential fields, Excel/CSV import and export, and MCP tools so AI agents can work with it safely
- Deployment is automatic, with a database backup before every change and automatic rollback on failure, and without restarting the portal
- The output is standard Java that your team can download, read and maintain
Watch for: it only makes sense if Liferay DXP is, or will be, your platform. ARAD generates OSGi modules, so it suits self-hosted Liferay and Liferay PaaS; Liferay SaaS doesn't allow custom OSGi modules. Liferay is web-first, so if native mobile apps are your main need, OutSystems or Mendix fit better.
Low-code for mobile development
If mobile is central, separate two needs:
- Native-feel mobile apps (offline mode, device features, app store distribution): OutSystems and Mendix are the strongest here.
- Mobile access to business apps: Power Apps (through its mobile app), Appian and Liferay (responsive web) cover this. Every platform above also exposes APIs, so a dedicated mobile app can be built on top.
Test mobile in your proof of concept on real devices, with real data volumes. That's where platforms differ most.
Low-code and AI: what has changed
Every platform now includes AI: generating apps from prompts, suggesting logic and running AI agents. Two questions matter more than the demo:
- What does the AI generate, and who maintains it? Generated code that bypasses the platform's security, audit and deployment controls creates risk. Look for AI that works inside the platform's rules.
- How is AI usage billed? Agent and token costs are rising for many organisations. Ask for AI usage in the quote, not as an add-on later.
Pricing models compared
| Model | How it works | Watch for |
|---|---|---|
| Per user | You pay for each person who uses the apps | Expensive for large or external audiences |
| Per app | Price depends on the number of applications | Discourages building small, useful apps |
| Runtime or capacity | You pay for environments, servers or application size | Costs rise as successful apps grow |
| Platform subscription | One platform licence, apps built on top | Check what's included in support and hosting |
Always compare three- to five-year total cost of ownership: licences, hosting, support, AI usage and the people needed to build and run the apps.
How to choose: run a one-day proof of concept
Demos show a platform at its best. A one-day proof-of-concept workshop, run by each shortlisted vendor or partner on the same requirements, shows how it behaves on yours.
What to include in the scope
Pick requirements that take real time in your current projects:
- A relational form with line items (for example, an invoice with multiple items)
- Field validation, a one- or two-step approval workflow and email notification
- Keyword search, a basic dashboard and an audit trail of user activity
- Department-wise users and roles, with departments isolated from each other
- Master data management and localisation
- Encryption of sensitive fields in the database
- REST APIs to create, read, update and delete records
- Bulk upload of at least 10,000 legacy records from Excel or CSV
- An integration with an external system (give participants working API access)
- A few public pages that need no login
- A change request after the scope is complete, such as new fields and changed validation rules
Give each requirement a weighting based on how long it takes your team today.
What to measure
| KPI | Why it matters |
|---|---|
| Time to complete, and % of weighted scope delivered | Real productivity, not demo speed |
| Time to implement and deploy the change request | How the platform handles change after go-live |
| Code written outside the platform | Hidden effort and maintenance cost |
| Time to upload 10,000 records | Data migration and performance |
| Results of a quick load test and security scan (VAPT) | Readiness for production |
| Can developers read and extend the generated code? | Your options when the platform falls short |
| Can external systems and mobile apps use the APIs easily? | Integration effort |
| Days for a new developer to become productive | Hiring and team cost |
| Three- to five-year total cost of ownership | The number your CFO will ask for |
It looks like a lot for one day. On a good low-code platform, it isn't. That's the point of the test.
Frequently asked questions
What is an enterprise low-code platform? A platform for building business applications with visual or generated components instead of hand-written code, with the security, governance, integration and scale that large organisations need.
Which low-code platform is best for large enterprises? It depends on your existing platforms and use cases. OutSystems and Mendix suit broad custom portfolios, Power Apps suits Microsoft-centred organisations, Appian suits process-heavy operations, and Liferay with ARAD Studio suits organisations that want portals, content and business apps on one platform.
Can low-code build mobile apps? Yes. OutSystems and Mendix are strongest for native-style mobile apps; the others support mobile through responsive web, mobile clients or APIs.
Is low-code secure enough for regulated industries? It can be, if the platform enforces access control, audit trails and encryption by default rather than leaving them to each developer. Include a security scan in your proof of concept.
How is low-code different from AI coding agents? AI agents write code quickly but don't, on their own, provide deployment, audit, access control or rollback. Low-code platforms provide that framework. The strongest approach combines both: AI agents working inside a platform's controls.
Shortlisting low-code platforms? We can run the one-day proof of concept on your requirements, including ARAD Studio on Liferay DXP, and share the measured results. Talk to us, or see how we deliver rapid application development and enterprise MVPs in 4–6 weeks.