Incus vs SingularityCE
Incus
linuxcontainers.org
SingularityCE
sylabs.ioSide by side
| Figure | Incus | SingularityCE |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Container Runtime Software | 8.7 (#2) | 7.3 (#24) |
| Spec score · Container Engines | 8.7 (#3) | 7.3 (#24) |
| Integrations | The documentation links to third-party tools and documents storage drivers including Btrfs, LVM, ZFS, Ceph, LINSTOR, and TrueNAS. | The guide documents GPU access, containerized MPI applications, OCI registries, and Sylabs Container Services Library usage. |
| Purpose | Incus is a system container, application container, and virtual machine manager. | SingularityCE creates and runs portable, reproducible containers that package software into a single file. |
| Security | The project highlights unprivileged containers, resource restrictions, and authentication as security measures. | Containers can be signed with PGP keys for verification and encrypted with LUKS2 so they can run without first being decrypted to disk. |
Plans
In their own words
Incus
Incus is free software for managing system containers, application containers, and virtual machines. Instances can share storage and networking, and administrators can manage them through a command-line tool, REST API, or third-party integrations. The software supports snapshots, backup and recovery, migration, configurable storage pools and networks, and resource controls. The project describes its API as suitable for use from a laptop through clusters of thousands of compute nodes. Documented integrations include Terraform, OpenTofu, Ansible, Packer, Distrobuilder, GARM, Kubernetes Cluster API, and Incant. The daemon runs on Linux; client applications are available for Windows and macOS, with FreeBSD client packages also listed. Upstream does not directly provide packages, so installation is through Linux distributions, third-party repositories, or source. Incus is developed under the Apache 2 license. Containers are unprivileged by default, but access to the Unix socket grants full control, so it should be limited to trusted users. The 6.0 LTS release is supported until June 2029; feature releases are normally supported until the next release.
SingularityCE
SingularityCE has no write-up on Specifiction yet; its figures are above.