Best for
Best for enterprise IT teams that want AI-generated applications inside a governed low-code platform with its own architecture guard rails.
- Enterprise
AI App Builders Comparison
OutSystems vs. WeWeb
At a glance
At a glance
Best for
Best for teams and agencies that want a visual front end on top of Supabase or Xano and the option to export the code and host it themselves.
- Freelancers
- Small and mid-sized
- Enterprise
Cataleo does not name a winner. Both statements come from the vendors themselves.
Full Comparison
| Criterion | OutSystems | WeWeb |
|---|---|---|
| Starting price | Free Personal Edition; OutSystems Developer Cloud quoted by the vendor ODC is metered on three things: application complexity in Application Objects, which is the sum of screens, database tables and API methods, with a typical medium app around 150 AOs; the number of internal and external end users; and advanced add-ons. A base subscription starts with one medium production application and 100 internal users. | Free plan; paid seat and hosting plans are priced separately Pricing is split in two. A seat plan (Free, Essential, Pro, Partner) controls editor access, AI tokens, code export and MCP access; a hosting plan (Free, Launch, Grow, Scale) covers WeWeb-hosted deployments, with limits on bandwidth, storage and app sessions. A seat plan is required before a hosting plan can be added, and self-hosted apps have no session limit. |
| Free trial | Free Personal Edition, no credit card required, for up to 100 internal users | Free plan with the visual editor, WeWeb-hosted deployment with a session limit and a monthly AI token allowance |
| Output | Full-stack enterprise web and mobile applications with data model, server-side logic and UI screens | Vue.js single-page web apps, hosted by WeWeb or exported and self-hosted |
| API | Yes, API-first with CI/CD APIs and APIs for uploading external libraries | Not stated |
| Hosting | OutSystems Cloud on AWS; self-hosting is available as an advanced add-on | WeWeb cloud on AWS, or self-hosted after code export |
| What it generates | Full-stack enterprise applications: Mentor generates the data model, server-side logic and UI screens from a natural language prompt or an uploaded requirements document, shows a visual blueprint before building, and then evolves the app through conversation inside the IDE with human sign-off on each implementation plan | Production web apps such as SaaS products, customer portals, internal tools, directories and MVPs, built visually or generated from a description by the WeWeb AI assistant |
| Stack and frameworks | .NET Core on Linux containers, each application isolated in its own container, orchestrated with Kubernetes on AWS; developers extend apps with custom .NET code uploaded as high-code external libraries, whose methods are exposed to the visual editor as server actions | Vue.js single-page applications, editable visually or extended with coded components |
| Auth and database | Amazon Aurora Serverless with PostgreSQL compatibility as the managed database; ISO 27001 compliance is included and SOC 2 Type II and PCI DSS are advanced add-ons | Supabase, Xano, Airtable, Algolia, SmartSuite and any REST API, with internal databases connected without replication; auth through Supabase Auth, Xano Auth, Auth0, OpenID, custom tokens or WeWeb Auth |
| Hosting and deploy | OutSystems Cloud with development, testing and production runtimes and a 99.5 percent uptime guarantee, upgradeable to 99.95 percent; extra runtimes and a self-hosted option are advanced add-ons. Built-in CI/CD pipelines with monitoring, tracing and logging | WeWeb cloud hosting on AWS, or self-hosting anywhere after code export, with a documented Cloudflare route |
| Payments | No checkout of its own; payment providers are integrated through components from the OutSystems Forge, including Stripe connectors for both ODC and OutSystems 11 that handle charges, customers and refunds, and a payments plugin covering Apple Pay, Google Pay and Stripe | Yes, a Stripe plugin among the documented extensions |
| Access to the code | Applications are built visually rather than in a repository of hand-written source; custom C# and .NET logic enters as external libraries uploaded through the SDK and APIs, decorated so their methods surface as server actions | Yes, full Vue.js code export and self-hosting from the Essential seat plan upwards |
| MCP-ready | No | stated Yes |
| Deployment | Cloud (SaaS), Browser-based, On-premise | Cloud (SaaS), Browser-based, On-premise |
| Support | Email helpdesk, Community forum | Chat, Community forum |
| Onboarding | Documentation and knowledge base | Documentation and knowledge base |
| Company size | Enterprise | more entries Freelancers, Small and mid-sized, Enterprise |
| Integrations | Not stated | Supabase, Xano, Airtable, Algolia, SmartSuite, Stripe |
Add a tool
Adds a column to the table, from the tools in this category.
Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Key Differences
- Starting price OutSystems Free Personal Edition; OutSystems Developer Cloud quoted by the vendor WeWeb Free plan; paid seat and hosting plans are priced separately
- Free trial OutSystems Free Personal Edition, no credit card required, for up to 100 internal users WeWeb Free plan with the visual editor, WeWeb-hosted deployment with a session limit and a monthly AI token allowance
- Company size OutSystems Enterprise WeWeb Freelancers, Small and mid-sized, Enterprise
- Hosting OutSystems OutSystems Cloud on AWS; self-hosting is available as an advanced add-on WeWeb WeWeb cloud on AWS, or self-hosted after code export
- Support OutSystems Email helpdesk, Community forum WeWeb Chat, Community forum
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Strengths and Limitations
OutSystems
Strengths
- Mentor generates a complete application, data model and server logic included, from a requirements document rather than only from a chat prompt
- Shows a visual blueprint and asks for sign-off before applying changes, instead of building unseen
- Runs on containerised .NET Core with Kubernetes, managed Aurora PostgreSQL and built-in CI/CD, monitoring and tracing
- Free Personal Edition for up to 100 internal users needs no credit card
- Self-hosting is available, unlike most tools in this category
Limitations
- No published prices at all, so every evaluation starts with a sales conversation
- Pricing is metered on Application Objects and user counts, which makes cost hard to predict as an app grows
- The Personal Edition is a development runtime only and cannot run production apps
- Self-hosting, 24x7 support, higher uptime and SOC 2 or PCI DSS compliance are all paid add-ons rather than part of the base subscription
- Base support is 8x5 business hours
WeWeb
Strengths
- Exports the generated Vue.js source, so an app can be self-hosted and is not locked to the platform
- Connects to Supabase, Xano, Airtable, Algolia, SmartSuite and any REST API, including internal databases without replication
- Six documented authentication routes, from Supabase Auth and Auth0 to a custom token flow
- Official MCP server, so outside agents such as Claude, Cursor or ChatGPT can build inside a project
Limitations
- Seat plan and hosting plan are billed separately, so the cost of a project depends on both
- Code export and self-hosting require at least the Essential seat plan
- MCP access needs a Pro or Partner plan once the 14-day trial on a new workspace ends
- The MCP server does not expose plugin actions, so an agent cannot build with the Xano or Supabase plugins
- It builds the front end and expects a backend such as Supabase or Xano alongside it
Plans
Pricing
OutSystems
- OutSystems Personal Edition $0 Free, no credit card required. Development runtime only, up to 100 internal users, hosted on OutSystems Cloud. For test applications, not production, and with no uptime guarantee or compliance options.
- OutSystems Developer Cloud Custom Quoted by the vendor, priced on application complexity in Application Objects, end user counts and add-ons. Includes development, testing and production runtimes, professional support 8x5, OutSystems Cloud hosting, a 99.5 percent uptime guarantee and ISO 27001. Starts with 100 internal users and one medium-sized application.
- Advanced add-ons Custom 24x7 professional support, additional non-production and production runtimes, a self-hosted option, a 99.95 percent uptime upgrade, SOC 2 Type II and PCI DSS compliance, and additional users or larger applications.
WeWeb
- Free (seat) $0 Visual editor, API integrations, WeWeb-hosted deployment with a session limit, and a monthly AI token allowance. No code export.
- Essential (seat) Not stated Adds code export and self-hosting, and is the minimum seat plan required before a hosting plan can be added.
- Pro (seat) Not stated Adds team seats and continued access to the WeWeb MCP server after the 14-day trial.
- Partner (seat) Not stated For building in customer workspaces; MCP use there requires the customer workspace to be on at least Pro.
- Hosting plans Not stated Free, Launch, Grow and Scale, added on top of a seat plan for WeWeb-hosted apps. They set deployment location, bandwidth, storage, compute and app sessions.
What users say
Review Scores · opens after launch
OutSystems
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
WeWeb
- Ease of use
- Not rated yet
- User interface
- Not rated yet
- Onboarding
- Not rated yet
- Support and service
- Not rated yet
- Value for money
- Not rated yet
- Features
- Not rated yet
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Where this comes from
OutSystems https://www.outsystems.com · no check date recorded yet
WeWeb https://www.weweb.io · checked against the official source on 2026-09-12
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.