The Verdict
Our pick: Boomi. Boomi wins 3 of our 5 comparison categories, making it the stronger choice for organizations that need a comprehensive, enterprise-grade platform for connecting applications and managing data at scale. Its wins in Features & Integrations, Reliability & Support, and Ecosystem & Scalability highlight its depth and power for complex use cases.
However, Relay.app is the clear winner for teams who prioritize ease of use and affordability. If your primary need is automating team-based workflows with built-in human approval steps, and you don't require the extensive data management and API lifecycle tools of an enterprise iPaaS, Relay.app offers a more accessible and cost-effective solution.
Pricing Comparison
Relay.app More Affordable
For the Professional plan, billed annually.
Relay.app offers transparent, tier-based pricing that is accessible to individuals and teams. Its free plan is generous enough for testing, and paid plans scale predictably with usage limits on workflow steps and AI credits.
Boomi
Estimated starting price for the Professional tier.
Boomi's pricing is complex and geared toward enterprise customers. Most tiers require a custom quote, and costs are based on factors like the number of connections, data volume, and required modules. A pay-as-you-go option exists but is less common for production use.
| Plan | Relay.app Price (Annual) | Boomi Price (Estimated) |
|---|---|---|
| Free / Trial | $0 (200 steps/mo, 500 AI credits) | 30-day free trial |
| Entry-Level Paid | Professional: $19/mo (750 steps, 5,000 AI credits) | Professional: ~$550/mo (Up to 5 connections) |
| Team / Mid-Tier | Team: $69/mo (10 users, 2,000 steps) | Enterprise: Custom (~$1,200+/mo, unlimited connections) |
| Enterprise | Custom pricing | Custom pricing ($50k-$190k+/year) |
Feature Comparison
| Feature | Relay.app | Boomi |
|---|---|---|
| Core Function | Workflow Automation | Enterprise Integration Platform as a Service (iPaaS) |
| Human-in-the-Loop | ✔ Core feature (approvals, tasks) | ✖ Possible via Boomi Flow, but not a core focus |
| API Management | ✖ No | ✔ Full lifecycle management |
| Master Data Hub | ✖ No | ✔ Yes, for data governance and synchronization |
| B2B/EDI Management | ✖ No | ✔ Yes, supports standards like X12, EDIFACT |
| AI Integration | ✔ Built-in AI steps (GPT, Claude, Gemini) | ✔ Yes, through Boomi AI and integrations |
| Low-Code Interface | ✔ Visual, drag-and-drop builder | ✔ Visual, drag-and-drop builder |
| Hybrid Deployment | ✖ Cloud-only | ✔ Supports cloud and on-premises (via Atoms) |
Boomi wins the features category due to its sheer breadth and depth as an enterprise iPaaS. It's not just an automation tool; it's a comprehensive platform for application and data integration, API lifecycle management, master data management, and B2B/EDI network integration. These capabilities are designed to solve complex, large-scale integration challenges that are beyond the scope of a typical workflow automation tool.
Relay.app, by contrast, focuses on doing one thing exceptionally well: collaborative workflow automation. Its standout feature is the native 'human-in-the-loop' capability, which allows teams to easily insert manual approval steps, tasks, and data entry points into automated processes. While it has powerful AI features and a growing list of over 100 integrations, its purpose is to automate team-based processes, not to serve as the central integration hub for an entire enterprise.
Ease of Use
Relay.app Easier to Use
- Modern, intuitive drag-and-drop interface
- Designed for business users and non-developers
- Fast setup for workflows with live data previews
- Praised for its user-friendly experience
Boomi
- Powerful low-code visual builder
- Steeper learning curve requiring training and certification
- Designed for IT professionals and integration specialists
- Complexity can be high due to extensive features
Relay.app is the decisive winner for ease of use. The platform is built from the ground up for business users, featuring a modern, intuitive interface that makes building complex automations straightforward. Users frequently praise its simplicity and the speed at which they can create and deploy functional workflows without technical assistance. Its focus on a specific use case—collaborative automation—allows for a more streamlined and less intimidating user experience.
Boomi, while also a low-code platform with a visual interface, is a far more complex tool designed for technical users like integration developers and IT specialists. Its power and flexibility come with a significant learning curve. Effectively using Boomi for enterprise-scale projects typically requires formal training and certification to understand its components like Atoms, Molecules, connectors, and data mapping processes.
Reliability & Ecosystem
| Category | Relay.app | Boomi |
|---|---|---|
| Support Options | Email support (24-48 hour response time); Priority support for Enterprise. | Tiered 24/7 support (Basic, Enhanced, Premier) with phone options. |
| SLA | No publicly available uptime SLA. | Publicly available SLA with a 99.99% uptime goal. |
| Security & Compliance | SOC 2 Type II certified. | SOC 1/2, HIPAA, and other enterprise-grade certifications. |
| Number of Connectors | 100+ | 1000+ pre-built connectors and recipes. |
| Connector Types | Primarily SaaS applications (Google Workspace, Slack, Notion). | SaaS, databases, ERPs (SAP, Oracle), protocols (SFTP, JMS), EDI. |
| Marketplace/Community | Growing user community. | Boomiverse: A large, active community with forums and resources. |
Boomi wins decisively in both Reliability and Ecosystem, which is expected of a mature, enterprise-focused platform. Boomi offers tiered, 24/7 support options and a formal, financially-backed Service Level Agreement (SLA) with a 99.99% uptime target. Its security and compliance certifications, including HIPAA, are tailored for large, regulated industries. Relay.app offers email-based support with a 24-48 hour response goal and is SOC 2 certified, which is strong for a modern SaaS tool but lacks the enterprise guarantees of Boomi.
Boomi's ecosystem is vastly larger. It boasts a library of over 1,000 connectors, covering everything from modern SaaS apps to legacy on-premises systems, databases, and industry-specific protocols like EDI. Its 'Boomiverse' community is a massive resource for developers. Relay.app has a growing library of over 100 connectors focused on popular business applications, which is sufficient for its target use case but cannot match the sheer scale and variety of Boomi's integration capabilities.
Who Should Pick What
Choose Relay.app if...
- You need to automate team workflows that require manual approvals or human intervention.
- Your primary goal is to connect modern SaaS applications like Slack, Notion, and Google Workspace.
- Ease of use for non-technical business users is a top priority.
- You need a predictable, affordable pricing model with a functional free tier.
Choose Boomi if...
- You need a central platform to manage complex integrations across the entire enterprise.
- Your requirements include API management, master data management, or B2B/EDI integration.
- You need to connect a mix of cloud applications and on-premises legacy systems.
- Guaranteed reliability through SLAs and access to 24/7 enterprise-grade support are critical.
Also consider: For users looking for a middle ground, Workato offers enterprise-grade features and a large connector library but with a user experience that is often considered more modern than Boomi's. For simpler, task-based automation, Zapier remains a popular choice with thousands of app integrations.
Our recommendation: start with Boomi
For organizations with complex, mission-critical integration needs, Boomi's comprehensive platform provides the power, reliability, and scale required to build a connected enterprise.
Both platforms offer ways to get started for free: Boomi has a 30-day trial and Relay.app has a permanent free plan.