Appian alternatives: top competitors compared
Named alongside Appian
OutSystemsBest forRegulated enterprises that need to modernize legacy systems and run custom apps and agents they can trust89% of Appian answersMicrosoft Power AppsBest forOrganizations whose business users and professional developers need to build and govern internal business apps together86% of Appian answersMendixBest forEnterprises building department-wide business applications and mission-critical core systems84% of Appian answersRetoolBest forEnterprises and business teams that want to build internal tools with AI while IT keeps governance, security review and audit trails.65% of Appian answers
Data from SlateIndex weekly runs
Appian has a visibility score of 19.6 in Low-Code & No-Code, #6 of 43. AI answers that name Appian most often also name these 4.
What AI answers fault Appian for
quote-based, less transparent pricing
Raised in 2 collected answers.
Quick reference
| Alternative | Best for | Starting price | Visibility | Key differentiator |
|---|---|---|---|---|
| OutSystems | Regulated enterprises that need to modernize legacy systems and run custom apps and agents they can trust | Contact sales | 40.2% | Governed AI development on a low-code foundation that works with any coding agent |
| 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. |
Alternative 1
OutSystems vs Appian →OutSystems
OutSystems suits regulated enterprises that need to modernize legacy systems and run custom apps and agents they can trust.
Quick facts
- Contact sales · flat tiers
- Free plan available
- 40.2% visibility score · #2 in Low-Code & No-Code
- 400+ native integrations
Key features
- OutSystems Agentic Systems Platform — Platform for building, orchestrating and governing AI agents, apps and workflows.
- OutSystems Agent Workbench — Tool for creating custom agents with guardrails, evaluations, monitoring and swappable LLMs.
- OutSystems Personal Edition — No-cost edition for learning and exploring the platform.
OutSystems vs Appian
| Dimension | OutSystems | Appian |
|---|---|---|
| Visibility score | 40.2% | 19.6% |
| Pricing model | Flat tiers | Per seat |
| Entry price | Contact sales | Contact sales |
| Free plan | Yes | Yes |
| Trial | Free plan available | Free plan available |
Pros
- Enterprise-grade scalability for complex, mission-critical applications
- High performance and speed in app delivery
- Strong analyst rankings as an enterprise low-code leader
- Full-stack web and mobile app development with omnichannel reach
- Modernizing legacy systems and deep integrations
Cons
- Quote-based, opaque enterprise pricing
- High cost for enterprise tiers
Alternative 2
Microsoft Power Apps vs Appian →Microsoft Power Apps
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 Appian
| Dimension | Microsoft Power Apps | Appian |
|---|---|---|
| Visibility score | 55.6% | 19.6% |
| Pricing model | — | Per seat |
| 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 3
Mendix vs Appian →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 Appian
| Dimension | Mendix | Appian |
|---|---|---|
| Visibility score | 33.1% | 19.6% |
| Pricing model | Flat tiers | Per seat |
| 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 4
Retool vs Appian →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 Appian
| Dimension | Retool | Appian |
|---|---|---|
| Visibility score | 29.9% | 19.6% |
| Pricing model | Per seat | Per seat |
| 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
How to choose
Match the pricing model to your cost driver: headcount, usage or features.
| Platform | Pricing model | Starting price |
|---|---|---|
| Appian | Per seat | Contact sales |
| 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 |
More alternatives
Ranked by how often AI answers name them alongside Appian in the latest weekly run.