| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 1 |
| Spec score · Continuous Integration Software | 8.4 (#12) | 8.0 (#29) |
| Deployment | Self-hosted deployments support Docker, Podman, Kubernetes, and OpenShift, and can keep source code, signing identities, and build artifacts within the customer's network. | Zuul is a self-hosted service, and its documentation describes running it on an operator’s infrastructure. |
| Integrations | Appcircle lists hundreds of ready workflow steps, including Fastlane, SonarQube, BrowserStack, Firebase App Distribution, and AWS Device Farm. | Built-in source drivers include Gerrit, Git, GitHub, GitLab, and Pagure; provider drivers include AWS, Azure, Kubernetes, OpenStack, and static nodes. |
| Purpose | Its stated mission is to simplify and automate mobile development workflows for teams of all sizes. | Zuul is a project gating system that tests proposed future states of code repositories and their changes before they merge. |
| Security | Appcircle says source code is fetched only during builds, build agents are isolated temporary virtual machines, and repository access uses read-only tokens. | Zuul's Operator documentation notes that its all-dependencies installation mode runs with cluster administrator privileges. |
| Support | Appcircle offers documentation and community support, while dedicated SLA support includes ticketing, security and legal assessment assistance, prioritized feature requests, and a dedicated customer success manager. | The project offers user and developer mailing lists, a Matrix chat room, and a documented process for reporting security vulnerabilities. |
