diff --git a/test-apps/android-test/src/index.ts b/test-apps/android-test/src/index.ts
index d8c7fbd..0cb5fec 100644
--- a/test-apps/android-test/src/index.ts
+++ b/test-apps/android-test/src/index.ts
@@ -158,18 +158,22 @@ class MockDailyNotificationService {
 
 class TestLogger {
   constructor(level: string) {
+    // eslint-disable-next-line no-console
     console.log('Mock logger initialized with level:', level);
   }
 
   info(message: string, data?: Record<string, unknown>): void {
+    // eslint-disable-next-line no-console
     console.log(`[INFO] ${message}`, data);
   }
 
   error(message: string, data?: Record<string, unknown>): void {
+    // eslint-disable-next-line no-console
     console.error(`[ERROR] ${message}`, data);
   }
 
   debug(message: string, data?: Record<string, unknown>): void {
+    // eslint-disable-next-line no-console
     console.log(`[DEBUG] ${message}`, data);
   }
 }
diff --git a/test-apps/electron-test/src/index.ts b/test-apps/electron-test/src/index.ts
index e829ab0..1502f0f 100644
--- a/test-apps/electron-test/src/index.ts
+++ b/test-apps/electron-test/src/index.ts
@@ -536,7 +536,7 @@ class TimeSafariElectronTestApp {
     }
   }
 
-  private async testEndorserAPI() {
+  private async testEndorserAPI(): Promise<void> {
     try {
       this.log('Testing Endorser.ch API integration on Electron...');
       const config = this.configLoader.getConfig();
diff --git a/test-apps/ios-test/src/index.ts b/test-apps/ios-test/src/index.ts
index 31964b8..80dc20d 100644
--- a/test-apps/ios-test/src/index.ts
+++ b/test-apps/ios-test/src/index.ts
@@ -304,7 +304,7 @@ class TimeSafariIOSTestApp {
     this.log('TimeSafari iOS Test app initialized with Phase 4 components');
   }
 
-  private setupEventListeners() {
+  private setupEventListeners(): void {
     // Original test functionality
     document.getElementById('configure')?.addEventListener('click', () => this.testConfigure());
     document.getElementById('schedule')?.addEventListener('click', () => this.testSchedule());