diff --git a/src/main.ts b/src/main.ts
index 2e74d54..2555385 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,18 +1,15 @@
 import { app, BrowserWindow } from 'electron';
 import BrowserWindowConstructorOptions = Electron.BrowserWindowConstructorOptions;
-import minimist from 'minimist';
 import os from 'os';
 import path from 'path';
 import packageJson from '../package.json';
 import './main/controllers/api';
+import { isDev } from './main/services/dev';
 import * as session from './main/services/session';
 
 export let mainWindow: Electron.BrowserWindow;
 
-export let appPath = path.resolve(
-  app.getPath('userData'),
-  `${packageJson.version}${minimist(process.argv).dev ? '-dev' : ''}`
-);
+export let appPath = path.resolve(app.getPath('userData'), `${packageJson.version}${isDev() ? '-dev' : ''}`);
 
 async function createWindow(): Promise<void> {
   session.setHeaders();
@@ -47,7 +44,9 @@ async function createWindow(): Promise<void> {
   await mainWindow.loadFile('frontend/index.html');
 
   // Open the DevTools.
-  mainWindow.webContents.openDevTools();
+  if (isDev()) {
+    mainWindow.webContents.openDevTools();
+  }
 
   // Emitted when the window is closed.
   mainWindow.on('closed', () => {
diff --git a/src/main/services/dev.ts b/src/main/services/dev.ts
new file mode 100644
index 0000000..cae37bf
--- /dev/null
+++ b/src/main/services/dev.ts
@@ -0,0 +1,5 @@
+import minimist from 'minimist';
+
+export function isDev(): boolean {
+  return !!minimist(process.argv).dev;
+}
diff --git a/tests/main/services/dev.spec.ts b/tests/main/services/dev.spec.ts
new file mode 100644
index 0000000..1324e2c
--- /dev/null
+++ b/tests/main/services/dev.spec.ts
@@ -0,0 +1,23 @@
+import rewiremock from 'rewiremock';
+import '../../../mocks/electron';
+
+import { expect } from 'chai';
+import 'mocha';
+import { isDev } from '../../../src/main/services/dev';
+
+describe('Development Mode Service', () => {
+  before(() => {
+    rewiremock.enable();
+  });
+
+  after(() => {
+    rewiremock.disable();
+  });
+
+  it('correctly identifies the development process argument', async () => {
+    process.argv.push('--dev');
+    expect(isDev()).to.be.true;
+    process.argv = process.argv.filter((value) => value !== '--dev');
+    expect(isDev()).to.be.false;
+  });
+});