Manage simulator runtimes - the OS versions that simulators can run.
flowdeck simulator runtime list
List installed simulator runtimes.
flowdeck simulator runtime list
flowdeck simulator runtime list --json
Options
| Option | Short | Description |
|---|
--json | -j | Output as JSON |
JSON Output
[
{
"identifier": "com.apple.CoreSimulator.SimRuntime.iOS-18-0",
"name": "iOS 18.0",
"version": "18.0",
"isAvailable": true
}
]
flowdeck simulator runtime create
Download and install a simulator runtime.
# Install latest iOS runtime
flowdeck simulator runtime create iOS
# Install specific version
flowdeck simulator runtime create iOS 18.0
# Install and prune auto-created simulators
flowdeck simulator runtime create iOS 18.0 --prune
Options
| Option | Short | Description |
|---|
<platform> | | Platform: iOS, tvOS, watchOS, or visionOS (required) |
<version> | | Version (e.g., 18.0). Omit for latest |
--verbose | -v | Show command output |
--prune | | Remove auto-created simulators after install |
--json | -j | Output as JSON |
Installing a runtime can take several minutes depending on your internet connection. The runtime files are large (several GB).
flowdeck simulator runtime delete
Remove an installed simulator runtime.
# Delete by name
flowdeck simulator runtime delete "iOS 17.0"
# Delete by identifier
flowdeck simulator runtime delete com.apple.CoreSimulator.SimRuntime.iOS-17-0
Options
| Option | Short | Description |
|---|
<runtime> | | Runtime name (e.g., “iOS 17.2”) or runtime identifier (required) |
--verbose | -v | Show command output |
--json | -j | Output as JSON |
Deleting a runtime will make any simulators using that runtime unavailable. Make sure no simulators depend on it before deleting.
flowdeck simulator runtime prune
Delete all simulators associated with a specific runtime.
# Prune simulators for iOS 17.0
flowdeck simulator runtime prune "iOS 17.0"
# Preview what would be deleted
flowdeck simulator runtime prune "iOS 17.0" --dry-run
Options
| Option | Short | Description |
|---|
<runtime> | | Runtime name (e.g., “iOS 17.2”) or runtime identifier (required) |
--dry-run | | Show what would be deleted without deleting |
--verbose | -v | Show command output |
--json | -j | Output as JSON |
flowdeck simulator device-types
List available simulator device types for creating new simulators.
flowdeck simulator device-types
flowdeck simulator device-types --json
Options
| Option | Short | Description |
|---|
--json | -j | Output as JSON |
JSON Output
[
{
"name": "iPhone 16 Pro",
"identifier": "com.apple.CoreSimulator.SimDeviceType.iPhone-16-Pro"
}
]
