diff --git a/src/components/builder/useAppSetDefaultView.ts b/src/components/builder/useAppSetDefaultView.ts
index ccee38cdaf..193ec9d8d2 100644
--- a/src/components/builder/useAppSetDefaultView.ts
+++ b/src/components/builder/useAppSetDefaultView.ts
@@ -43,6 +43,9 @@ export function useAppSetDefaultView() {
     const extra = (app.rootGraph.extra ??= {})
     extra.linearMode = openAsApp
     workflow.changeTracker?.checkState()
+    useTelemetry()?.trackDefaultViewSet({
+      default_view: openAsApp ? 'app' : 'graph'
+    })
     closeDialog()
     showAppliedDialog(openAsApp)
   }
diff --git a/src/platform/telemetry/TelemetryRegistry.ts b/src/platform/telemetry/TelemetryRegistry.ts
index a299f563a2..5bf65aecb1 100644
--- a/src/platform/telemetry/TelemetryRegistry.ts
+++ b/src/platform/telemetry/TelemetryRegistry.ts
@@ -3,6 +3,7 @@ import type { AuditLog } from '@/services/customerEventsService'
 import type {
   AuthMetadata,
   BeginCheckoutMetadata,
+  DefaultViewSetMetadata,
   EnterLinearMetadata,
   ShareFlowMetadata,
   ExecutionErrorMetadata,
@@ -27,7 +28,8 @@ import type {
   TemplateMetadata,
   UiButtonClickMetadata,
   WorkflowCreatedMetadata,
-  WorkflowImportMetadata
+  WorkflowImportMetadata,
+  WorkflowSavedMetadata
 } from './types'
 
 /**
@@ -157,6 +159,14 @@ export class TelemetryRegistry implements TelemetryDispatcher {
     this.dispatch((provider) => provider.trackWorkflowOpened?.(metadata))
   }
 
+  trackWorkflowSaved(metadata: WorkflowSavedMetadata): void {
+    this.dispatch((provider) => provider.trackWorkflowSaved?.(metadata))
+  }
+
+  trackDefaultViewSet(metadata: DefaultViewSetMetadata): void {
+    this.dispatch((provider) => provider.trackDefaultViewSet?.(metadata))
+  }
+
   trackEnterLinear(metadata: EnterLinearMetadata): void {
     this.dispatch((provider) => provider.trackEnterLinear?.(metadata))
   }
diff --git a/src/platform/telemetry/providers/cloud/MixpanelTelemetryProvider.ts b/src/platform/telemetry/providers/cloud/MixpanelTelemetryProvider.ts
index 6894a7e62c..9c7f0a102f 100644
--- a/src/platform/telemetry/providers/cloud/MixpanelTelemetryProvider.ts
+++ b/src/platform/telemetry/providers/cloud/MixpanelTelemetryProvider.ts
@@ -14,6 +14,7 @@ import { getExecutionContext } from '../../utils/getExecutionContext'
 import type {
   AuthMetadata,
   CreditTopupMetadata,
+  DefaultViewSetMetadata,
   EnterLinearMetadata,
   ShareFlowMetadata,
   ExecutionContext,
@@ -40,7 +41,8 @@ import type {
   TemplateMetadata,
   UiButtonClickMetadata,
   WorkflowCreatedMetadata,
-  WorkflowImportMetadata
+  WorkflowImportMetadata,
+  WorkflowSavedMetadata
 } from '../../types'
 import { remoteConfig } from '@/platform/remoteConfig/remoteConfig'
 import type { RemoteConfig } from '@/platform/remoteConfig/types'
@@ -359,6 +361,14 @@ export class MixpanelTelemetryProvider implements TelemetryProvider {
     this.trackEvent(TelemetryEvents.WORKFLOW_OPENED, metadata)
   }
 
+  trackWorkflowSaved(metadata: WorkflowSavedMetadata): void {
+    this.trackEvent(TelemetryEvents.WORKFLOW_SAVED, metadata)
+  }
+
+  trackDefaultViewSet(metadata: DefaultViewSetMetadata): void {
+    this.trackEvent(TelemetryEvents.DEFAULT_VIEW_SET, metadata)
+  }
+
   trackEnterLinear(metadata: EnterLinearMetadata): void {
     this.trackEvent(TelemetryEvents.ENTER_LINEAR_MODE, metadata)
   }
diff --git a/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.test.ts b/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.test.ts
index 64ed8168ed..88bbc613b8 100644
--- a/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.test.ts
+++ b/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.test.ts
@@ -82,6 +82,7 @@ describe('PostHogTelemetryProvider', () => {
 
       expect(hoisted.mockInit).toHaveBeenCalledWith('phc_test_token', {
         api_host: 'https://t.comfy.org',
+        ui_host: 'https://us.posthog.com',
         autocapture: false,
         capture_pageview: false,
         capture_pageleave: false,
diff --git a/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.ts b/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.ts
index 72a462ed9c..24890e0953 100644
--- a/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.ts
+++ b/src/platform/telemetry/providers/cloud/PostHogTelemetryProvider.ts
@@ -7,6 +7,7 @@ import type { RemoteConfig } from '@/platform/remoteConfig/types'
 
 import type {
   AuthMetadata,
+  DefaultViewSetMetadata,
   EnterLinearMetadata,
   ShareFlowMetadata,
   ExecutionContext,
@@ -34,7 +35,8 @@ import type {
   TemplateMetadata,
   UiButtonClickMetadata,
   WorkflowCreatedMetadata,
-  WorkflowImportMetadata
+  WorkflowImportMetadata,
+  WorkflowSavedMetadata
 } from '../../types'
 import { TelemetryEvents } from '../../types'
 import { getExecutionContext } from '../../utils/getExecutionContext'
@@ -102,6 +104,7 @@ export class PostHogTelemetryProvider implements TelemetryProvider {
             this.posthog!.init(apiKey, {
               api_host:
                 window.__CONFIG__?.posthog_api_host || 'https://t.comfy.org',
+              ui_host: 'https://us.posthog.com',
               autocapture: false,
               capture_pageview: false,
               capture_pageleave: false,
@@ -344,6 +347,14 @@ export class PostHogTelemetryProvider implements TelemetryProvider {
     this.trackEvent(TelemetryEvents.WORKFLOW_OPENED, metadata)
   }
 
+  trackWorkflowSaved(metadata: WorkflowSavedMetadata): void {
+    this.trackEvent(TelemetryEvents.WORKFLOW_SAVED, metadata)
+  }
+
+  trackDefaultViewSet(metadata: DefaultViewSetMetadata): void {
+    this.trackEvent(TelemetryEvents.DEFAULT_VIEW_SET, metadata)
+  }
+
   trackEnterLinear(metadata: EnterLinearMetadata): void {
     this.trackEvent(TelemetryEvents.ENTER_LINEAR_MODE, metadata)
   }
diff --git a/src/platform/telemetry/types.ts b/src/platform/telemetry/types.ts
index 347d71414d..d1da6f1730 100644
--- a/src/platform/telemetry/types.ts
+++ b/src/platform/telemetry/types.ts
@@ -149,6 +149,15 @@ export interface EnterLinearMetadata {
   source?: string
 }
 
+export interface WorkflowSavedMetadata {
+  is_app: boolean
+  is_new: boolean
+}
+
+export interface DefaultViewSetMetadata {
+  default_view: 'app' | 'graph'
+}
+
 type ShareFlowStep =
   | 'dialog_opened'
   | 'save_prompted'
@@ -377,6 +386,8 @@ export interface TelemetryProvider {
   // Workflow management events
   trackWorkflowImported?(metadata: WorkflowImportMetadata): void
   trackWorkflowOpened?(metadata: WorkflowImportMetadata): void
+  trackWorkflowSaved?(metadata: WorkflowSavedMetadata): void
+  trackDefaultViewSet?(metadata: DefaultViewSetMetadata): void
   trackEnterLinear?(metadata: EnterLinearMetadata): void
   trackShareFlow?(metadata: ShareFlowMetadata): void
 
@@ -490,6 +501,8 @@ export const TelemetryEvents = {
 
   // Workflow Creation
   WORKFLOW_CREATED: 'app:workflow_created',
+  WORKFLOW_SAVED: 'app:workflow_saved',
+  DEFAULT_VIEW_SET: 'app:default_view_set',
 
   // Execution Lifecycle
   EXECUTION_START: 'execution_start',
@@ -540,4 +553,6 @@ export type TelemetryEventProperties =
   | WorkflowCreatedMetadata
   | EnterLinearMetadata
   | ShareFlowMetadata
+  | WorkflowSavedMetadata
+  | DefaultViewSetMetadata
   | SubscriptionMetadata
diff --git a/src/platform/workflow/core/services/workflowService.ts b/src/platform/workflow/core/services/workflowService.ts
index 72d59d2bc3..a0cab36085 100644
--- a/src/platform/workflow/core/services/workflowService.ts
+++ b/src/platform/workflow/core/services/workflowService.ts
@@ -149,6 +149,8 @@ export const useWorkflowService = () => {
       await openWorkflow(tempWorkflow)
       await workflowStore.saveWorkflow(tempWorkflow)
     }
+
+    useTelemetry()?.trackWorkflowSaved({ is_app: isApp, is_new: true })
     return true
   }
 
@@ -189,6 +191,7 @@ export const useWorkflowService = () => {
       }
 
       await workflowStore.saveWorkflow(workflow)
+      useTelemetry()?.trackWorkflowSaved({ is_app: isApp, is_new: false })
     }
   }