Relay.app
Retool
| Feature | Relay.app | Retool |
|---|---|---|
| Pricing | Free / from $16/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.5 / 5 |
| Best For | operations-teams, agencies, small-businesses, compliance-teams | engineering-teams, operations, data-teams, startups, enterprise |
| Founded | 2021 | 2017 |
| Workflow Builder | ✓ | ✗ |
| Ai Steps | ✓ | ✗ |
| Human Approvals | ✓ | ✗ |
| Multiplayer Editing | ✓ | ✗ |
| Integrations | ✓ | ✗ |
| Conditional Logic | ✓ | ✗ |
| Drag Drop Ui | ✗ | ✓ |
| Database Connectors | ✗ | ✓ |
| Api Integration | ✗ | ✓ |
| Workflows | ✗ | ✓ |
| Self Hosting | ✗ | ✓ |
| Rbac | ✗ | ✓ |
| Ai | ✗ | ✓ |
✓ Relay.app Pros
- Human-in-the-loop approvals
- AI steps built in
- Collaborative workflows
- Clean modern interface
✗ Relay.app Cons
- Fewer integrations than Zapier
- Newer platform
- Limited advanced logic
✓ Retool Pros
- Fastest way to build internal tools
- Connects to any database or API
- Self-hostable for security
- Pre-built components save hours
✗ Retool Cons
- Only for internal tools — not customer-facing
- Can get expensive for large teams
- Learning curve for complex queries
The Verdict
Relay.app is built for operations teams and agencies, with a focus on workflow-builder and ai-steps. Retool targets engineering teams and operations and leads with drag-drop-ui and database-connectors.
On pricing, Retool is the clear winner for budget-conscious users — starting at $10/mo compared to $16/mo for Relay.app. That $6/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Retool offers broader built-in capabilities (7 features vs 6), while Relay.app takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.