diff --git a/angular.json b/angular.json
index f818fa6..73ce09f 100644
--- a/angular.json
+++ b/angular.json
@@ -130,5 +130,8 @@
         }
       }
     }
+  },
+  "cli": {
+    "analytics": false
   }
 }
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index bc1093a..45e7c4e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,6 +33,7 @@
         "@angular/cli": "^19.1.7",
         "@angular/compiler-cli": "^19.1.0",
         "@types/jasmine": "~5.1.0",
+        "concurrently": "^9.1.2",
         "jasmine-core": "~5.5.0",
         "karma": "~6.4.0",
         "karma-chrome-launcher": "~3.2.0",
@@ -7981,6 +7982,48 @@
       "devOptional": true,
       "license": "MIT"
     },
+    "node_modules/concurrently": {
+      "version": "9.1.2",
+      "resolved": "https://registry.npmjs.org/concurrently/-/concurrently-9.1.2.tgz",
+      "integrity": "sha512-H9MWcoPsYddwbOGM6difjVwVZHl63nwMEwDJG/L7VGtuaJhb12h2caPG2tVPWs7emuYix252iGfqOyrz1GczTQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "chalk": "^4.1.2",
+        "lodash": "^4.17.21",
+        "rxjs": "^7.8.1",
+        "shell-quote": "^1.8.1",
+        "supports-color": "^8.1.1",
+        "tree-kill": "^1.2.2",
+        "yargs": "^17.7.2"
+      },
+      "bin": {
+        "conc": "dist/bin/concurrently.js",
+        "concurrently": "dist/bin/concurrently.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/open-cli-tools/concurrently?sponsor=1"
+      }
+    },
+    "node_modules/concurrently/node_modules/supports-color": {
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
+      "integrity": "sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "has-flag": "^4.0.0"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/supports-color?sponsor=1"
+      }
+    },
     "node_modules/connect": {
       "version": "3.7.0",
       "resolved": "https://registry.npmjs.org/connect/-/connect-3.7.0.tgz",
diff --git a/package.json b/package.json
index 75e2308..e467261 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,7 @@
   "scripts": {
     "ng": "ng",
     "start": "ng serve --port=4202",
+    "start-all": "concurrently 'ng serve --port=4202' 'http-server ../vocab-backend'",
     "build": "ng build",
     "watch": "ng build --watch --configuration development",
     "test": "ng test"
@@ -35,6 +36,7 @@
     "@angular/cli": "^19.1.7",
     "@angular/compiler-cli": "^19.1.0",
     "@types/jasmine": "~5.1.0",
+    "concurrently": "^9.1.2",
     "jasmine-core": "~5.5.0",
     "karma": "~6.4.0",
     "karma-chrome-launcher": "~3.2.0",
diff --git a/src/app/deck-list.component.ts b/src/app/deck-list.component.ts
index ac53329..b72412a 100644
--- a/src/app/deck-list.component.ts
+++ b/src/app/deck-list.component.ts
@@ -518,11 +518,9 @@ export class DeckListComponent implements OnInit {
   }
   // Methode zur Berechnung der Anzahl der zu bearbeitenden Wörter
   getWordsToReview(deck: Deck): number {
-    // const nextTraining = this.getNextTrainingDate(deck);
-    // return deck.images.flatMap(image => image.boxes.filter(box => (box.due && new Date(box.due * 86400000) <= new Date(nextTraining)) || !box.due)).length;
+    const nextTraining = this.getNextTrainingDate(deck);
     const today = this.getTodayInDays();
-    return deck.images.flatMap(image => image.boxes.filter(box => (box.due && box.due <= today) || !box.due)).length;
-    // this.currentImageData.boxes.filter(box => box.due === undefined || box.due <= today);
+    return deck.images.flatMap(image => image.boxes.map(box => (box.due ? box.due : null))).filter(e=>e===nextTraining).length;
   }
   getTodayInDays(): number {
     const epoch = new Date(1970, 0, 1); // Anki uses UNIX epoch