diff --git a/ClaudeChecker/Info.plist b/ClaudeChecker/Info.plist
index 486b9e4..5ae3940 100644
--- a/ClaudeChecker/Info.plist
+++ b/ClaudeChecker/Info.plist
@@ -15,9 +15,9 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.2.1-beta.6</string>
+    <string>1.2.1-beta.7</string>
     <key>CFBundleVersion</key>
-    <string>54</string>
+    <string>55</string>
     <key>LSMinimumSystemVersion</key>
     <string>13.0</string>
     <key>LSUIElement</key>
diff --git a/ClaudeChecker/LoginView.swift b/ClaudeChecker/LoginView.swift
index 470d879..26830cb 100644
--- a/ClaudeChecker/LoginView.swift
+++ b/ClaudeChecker/LoginView.swift
@@ -38,7 +38,7 @@ struct LoginWebView: NSViewRepresentable {
 
             // URL is not a login/auth page, so if any claude.ai cookie exists we're signed in
             WKWebsiteDataStore.default().httpCookieStore.getAllCookies { cookies in
-                let hasAnyCookie = cookies.contains { $0.domain.contains("claude.ai") }
+                let hasAnyCookie = cookies.contains { $0.domain.contains("claude.ai") || $0.domain.contains("anthropic.com") }
                 guard hasAnyCookie, !self.didAuthenticate else { return }
                 self.didAuthenticate = true
                 DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
diff --git a/ClaudeChecker/UsageViewModel.swift b/ClaudeChecker/UsageViewModel.swift
index 24f5f28..b96caf6 100644
--- a/ClaudeChecker/UsageViewModel.swift
+++ b/ClaudeChecker/UsageViewModel.swift
@@ -43,7 +43,7 @@ class UsageViewModel: ObservableObject {
 
     private func checkInitialSignInState() async {
         let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
-        let hasAnyCookie = cookies.contains { $0.domain.contains("claude.ai") }
+        let hasAnyCookie = cookies.contains { $0.domain.contains("claude.ai") || $0.domain.contains("anthropic.com") }
         if hasAnyCookie { isSignedIn = true }
     }
 
@@ -51,7 +51,7 @@ class UsageViewModel: ObservableObject {
         let store = WKWebsiteDataStore.default()
         let types = WKWebsiteDataStore.allWebsiteDataTypes()
         let records = await store.dataRecords(ofTypes: types)
-        let claudeRecords = records.filter { $0.displayName.contains("claude.ai") }
+        let claudeRecords = records.filter { $0.displayName.contains("claude.ai") || $0.displayName.contains("anthropic.com") }
         await store.removeData(ofTypes: types, for: claudeRecords)
         UserDefaults.standard.removeObject(forKey: "claude_org_id")
         isSignedIn = false
@@ -109,6 +109,7 @@ class UsageViewModel: ObservableObject {
             checkLimitNotifications(for: limits)
         } catch AppError.notAuthenticated {
             isNotAuthenticated = true
+            isSignedIn = false
             errorMessage = "Not signed in"
         } catch let error as DecodingError {
             switch error {
@@ -192,7 +193,7 @@ class UsageViewModel: ObservableObject {
 
     private func claudeCookieHeader() async -> String? {
         let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
-        let claudeCookies = cookies.filter { $0.domain.contains("claude.ai") }
+        let claudeCookies = cookies.filter { $0.domain.contains("claude.ai") || $0.domain.contains("anthropic.com") }
         return HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"]
     }
 
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index c408a82..d3c4a36 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -6,4 +6,6 @@
 - Fixed login window auto-closing before the user could sign in — the login window now correctly loads the `/login` page so it only detects auth after the actual sign-in redirect
 - Fixed "No API key configured" showing after signing out — now correctly shows "Not signed in" with a prompt to sign in
 - Added `/api/organizations` as a final fallback for org ID resolution when the bootstrap API response doesn't include it
-- Fixed usage data not loading after sign-in — API requests now include required browser-like headers (Origin, Referer, User-Agent) that Claude's usage endpoints require
+- Fixed usage data not loading — API requests now include required browser-like headers (Origin, Referer, User-Agent)
+- Fixed sign-in detection and cookie handling for accounts whose session cookies are on the `anthropic.com` domain rather than `claude.ai`
+- Fixed Settings incorrectly showing "Signed in" after a failed refresh — sign-in state now resets when authentication fails