env0 vs Kusion

env0 is a cloud control plane for governing infrastructure and helping teams manage, automate, and scale it. Developers and AI agents deploy through reusable templates and Git-based workflows, with RBAC, scoped variables, and policy-as-code guardrails. It supports Terraform, Terragrunt, Pulumi, OpenTofu, Kubernetes, Helm, Ansible, and AWS CloudFormation across cloud accounts, Kubernetes resources, and IaC-managed environments. Drift management detects changes across clouds, plans fixes with blast-radius context, remediates at the infrastructure-as-code source, and rescans. Cloud Asset Management maps resources across clouds, accounts, and SaaS providers to owners, costs, dependencies, and policy state. Listed integrations include GitHub, GitLab, Bitbucket, Azure DevOps, AWS, Azure, GCP, Slack, Microsoft Teams, Datadog, and Backstage. The Free Tier costs nothing, billed Free / Forever, with up to 30 active environments, 250 monthly deployments, one concurrent run, unlimited users and agents, and community support. Custom-priced Cloud Navigator and Cloud Pilot plans are also listed.

Kusion is a free, open-source platform orchestrator for internal developer platforms. Its AppConfiguration lets developers describe application workloads and resource dependencies without setting environment-specific values. The declarative model combines workload, accessory, pipeline, and dependency concepts. The documented process moves through Write, Generate, and Apply, with a three-way diff preview before changes are applied. Kusion currently applies operations to Kubernetes, Terraform, and on-premises infrastructure. Platform engineers can create reusable modules to standardize deployments and support developer self-service. A built-in delivery pipeline can be extended with customized plugin steps managed by platform owners. The project describes security and compliance support through base models, policy-as-code guardrails, and automatic injection of accessory secrets into workloads. External secret-store guides cover AWS, Alibaba Cloud, and Viettel Cloud. Kusion is a lightweight client-side solution with APIs for integration and automation. Its CLI installation methods cover macOS, Linux, and Windows. The project calls itself early and rapidly iterated; help and feedback are available through Slack or GitHub issues.