OutSystems alternatives: top competitors compared
Named alongside OutSystems
Microsoft Power AppsBest forOrganizations whose business users and professional developers need to build and govern internal business apps together77% of OutSystems answersMendixBest forEnterprises building department-wide business applications and mission-critical core systems77% of OutSystems answersRetoolBest forEnterprises and business teams that want to build internal tools with AI while IT keeps governance, security review and audit trails.61% of OutSystems answersAppianBest forLarge enterprises and government bodies running complex, document-intensive, high-volume processes that depend on operational context59% of OutSystems answers
Data from SlateIndex weekly runs
OutSystems has a visibility score of 40.2 in Low-Code & No-Code, #2 of 43. AI answers that name OutSystems most often also name these 4.
What AI answers fault OutSystems for
Quote-based, opaque enterprise pricing
Raised in 3 collected answers.
High cost for enterprise tiers
Raised in 3 collected answers.
Quick reference
| Alternative | Best for | Starting price | Visibility | Key differentiator |
|---|---|---|---|---|
| Microsoft Power Apps | Organizations whose business users and professional developers need to build and govern internal business apps together | — | 55.6% | Business users and pro developers collaborate in one workspace, combining low code with custom code and connectors |
| Mendix | Enterprises building department-wide business applications and mission-critical core systems | Free; paid from $1,090 / mo | 33.1% | A single trust layer over every app, agent and workflow, with audit trails and policy control built in from the start |
| Retool | Enterprises and business teams that want to build internal tools with AI while IT keeps governance, security review and audit trails. | Free; paid from $10 per seat / mo | 29.9% | Apps built with any AI tool deploy onto one governed runtime with SSO, RBAC and audit logging built in. |
| Appian | Large enterprises and government bodies running complex, document-intensive, high-volume processes that depend on operational context | Contact sales | 19.6% | A deterministic process layer that governs AI agents, people and systems, with guardrails, audit trails and every action captured |
Microsoft Power Apps suits organizations whose business users and professional developers need to build and govern internal business apps together.
Quick facts
- Pricing not available
- 55.6% visibility score · #1 in Low-Code & No-Code
Key features
- Power Apps — Low-code app builder for custom business apps, built with drag and drop, generative AI or custom code and deployed across web and mobile.
- Code apps in Power Apps — Apps built by pro developers with custom code on the Power Apps platform, generally available since February 2026.
Microsoft Power Apps vs OutSystems
| Dimension | Microsoft Power Apps | OutSystems |
|---|---|---|
| Visibility score | 55.6% | 40.2% |
| Pricing model | — | Flat tiers |
| Entry price | — | Contact sales |
| Free plan | — | Yes |
| Trial | — | Free plan available |
Pros
- Most widely used low-code platform by adoption
- Strong integration with Microsoft 365, Teams, Azure and Dataverse
- Strong default for Microsoft-centric enterprises and citizen developers
- Transparent, publicly listed pricing
- Free developer plan and trial for testing
Cons
- Pricing for premium connectors and services can be unclear
- Can be overkill for simple apps versus cheaper tools
Alternative 2
Mendix vs OutSystems →Mendix
Mendix suits enterprises building department-wide business applications and mission-critical core systems.
Quick facts
- Free; paid from $1,090 / mo · flat tiers
- Free plan available
- 33.1% visibility score · #3 in Low-Code & No-Code
Key features
- Mendix Studio Pro — Low-code development environment combining agentic AI, visual modeling, enterprise governance and open architecture.
- AI Studio — Machine learning development and deployment environment for domain-specific models, integrated with Mendix governed workflows.
Mendix vs OutSystems
| Dimension | Mendix | OutSystems |
|---|---|---|
| Visibility score | 33.1% | 40.2% |
| Pricing model | Flat tiers | Flat tiers |
| Entry price | Free; paid from $1,090 / mo | Contact sales |
| Free plan | Yes | Yes |
| Trial | Free plan available | Free plan available |
Pros
- Enterprise-grade scalability for complex applications
- Strong model-driven, high-productivity development
- Cloud-native, multi-experience development
- Bridges citizen developers and professional developers
- Strong for enterprise and industrial application development
Cons
- Costs less predictable due to infrastructure and add-ons
- Free plan limited to one app with production and scaling limits
- Enterprise tiers can be expensive, starting around $1,090 per month
Alternative 3
Retool vs OutSystems →Retool
Retool suits enterprises and business teams that want to build internal tools with AI while IT keeps governance, security review and audit trails..
Quick facts
- Free; paid from $10 per seat / mo · per seat
- Free plan available
- 29.9% visibility score · #4 in Low-Code & No-Code
Key features
- Retool app builder — Describe the app you want and get a production-ready app with enterprise security and governance built in.
- Agents — Observe, evaluate and tune AI agents, with role-based access control over agents and tools.
- Workflows — Scheduled and webhook-triggered automations that read from and write to your data.
- Database — Built-in PostgreSQL database with a database editor and isolated tables per environment.
Retool vs OutSystems
| Dimension | Retool | OutSystems |
|---|---|---|
| Visibility score | 29.9% | 40.2% |
| Pricing model | Per seat | Flat tiers |
| Entry price | Free; paid from $10 per seat / mo | Contact sales |
| Free plan | Yes | Yes |
| Trial | Free plan available | Free plan available |
Pros
- Excellent for internal tools, admin panels, and dashboards
- Developer-first low-code platform
- Transparent, inexpensive pricing
- High developer satisfaction ratings
- Rapid assembly of internal tools
Cons
- Pricing rises as builders and users increase
- Overkill for simple apps or lightweight needs
- Free plan limits on users, workflow runs, and storage
Alternative 4
Appian vs OutSystems →Appian
Appian suits large enterprises and government bodies running complex, document-intensive, high-volume processes that depend on operational context.
Quick facts
- Contact sales · per seat
- Free plan available
- 19.6% visibility score · #6 in Low-Code & No-Code
Key features
- Appian Platform — Orchestrates processes across people, systems and AI agents, with data, automation and governance built in.
- Agent Studio — Builds AI agents to run inside business processes.
- Data Fabric — Gives applications and AI agents governed access to data across systems without migrating it.
- Appian Community Edition — Free personal development instance for exploring the platform and building applications.
Appian vs OutSystems
| Dimension | Appian | OutSystems |
|---|---|---|
| Visibility score | 19.6% | 40.2% |
| Pricing model | Per seat | Flat tiers |
| Entry price | Contact sales | Contact sales |
| Free plan | Yes | Yes |
| Trial | Free plan available | Free plan available |
Pros
- heavy-duty workflow automation and process orchestration
- strong case management
- suited to regulated industries
- governed platform for AI agents
- free Community Edition for evaluation
Cons
- quote-based, less transparent pricing
How to choose
Match the pricing model to your cost driver: headcount, usage or features.
| Platform | Pricing model | Starting price |
|---|---|---|
| OutSystems | Flat tiers | Contact sales |
| Microsoft Power Apps | — | — |
| Mendix | Flat tiers | Free; paid from $1,090 / mo |
| Retool | Per seat | Free; paid from $10 per seat / mo |
| Appian | Per seat | Contact sales |
More alternatives
Ranked by how often AI answers name them alongside OutSystems in the latest weekly run.