diff --git a/CHANGELOG.md b/CHANGELOG.md
index ff9281a..88334cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,10 +2,14 @@
 
 ## Versión actual
 
-- Versión base: `1.0.3`
+- Versión base: `1.0.4`
 
 ## Historial
 
+### 1.0.4 - 2026-04-23
+
+- Se muestra la versión de LinkedSign en el inicio de sesión web y Android.
+
 ### 1.0.3 - 2026-04-23
 
 - Se ajusta la duración completa de sesión web y Android a 15 minutos.
diff --git a/VERSION b/VERSION
index 21e8796..ee90284 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.3
+1.0.4
diff --git a/android/app/build.gradle b/android/app/build.gradle
index 9d6b3b3..21934bb 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -18,8 +18,8 @@ android {
         applicationId "net.linkedcorp.linkedsign"
         minSdk 26
         targetSdk 35
-        versionCode 10003
-        versionName "1.0.3"
+        versionCode 10004
+        versionName "1.0.4"
 
         buildConfigField "String", "API_BASE_URL", "\"${apiBaseUrl}\""
     }
diff --git a/android/app/src/main/java/net/linkedcorp/linkedsign/ui/LinkedSignApp.kt b/android/app/src/main/java/net/linkedcorp/linkedsign/ui/LinkedSignApp.kt
index e98c534..be33089 100644
--- a/android/app/src/main/java/net/linkedcorp/linkedsign/ui/LinkedSignApp.kt
+++ b/android/app/src/main/java/net/linkedcorp/linkedsign/ui/LinkedSignApp.kt
@@ -713,6 +713,12 @@ private fun LoginCard(onSubmit: (String, String) -> Unit) {
                     modifier = Modifier.padding(12.dp)
                 )
             }
+            Text(
+                "Versión ${BuildConfig.VERSION_NAME}",
+                color = TextMuted,
+                fontSize = AppFontSizes.xs,
+                modifier = Modifier.align(Alignment.CenterHorizontally)
+            )
         }
     }
 }
diff --git a/backend/package.json b/backend/package.json
index b8dbf84..f8d4d99 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "linkedsign-backend",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "private": true,
   "description": "Initial backend for LinkedSign",
   "main": "src/server.js",
diff --git a/frontend/package.json b/frontend/package.json
index 23f3e9c..1d8bf7a 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "1.0.3",
+  "version": "1.0.4",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/frontend/src/index.css b/frontend/src/index.css
index df73701..24895a8 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -392,6 +392,7 @@ select {
 .auth-link { text-align: center; margin-top: 20px; font-size: 13px; color: var(--gray-500); }
 .auth-link a { color: var(--primary); font-weight: 600; text-decoration: none; }
 .auth-link a:hover { text-decoration: underline; }
+.auth-version { text-align: center; margin-top: 10px; font-size: 12px; color: var(--gray-400); }
 .auth-download-btn {
   justify-content: center;
 }
diff --git a/frontend/src/pages/auth/LoginPage.jsx b/frontend/src/pages/auth/LoginPage.jsx
index 4c9df3a..498e8e3 100644
--- a/frontend/src/pages/auth/LoginPage.jsx
+++ b/frontend/src/pages/auth/LoginPage.jsx
@@ -4,6 +4,7 @@ import { useAuth } from '../../contexts/AuthContext';
 import { Download, PenTool } from 'lucide-react';
 import toast from 'react-hot-toast';
 import { SESSION_EXPIRED_MESSAGE, translateApiError } from '../../utils/session';
+import packageInfo from '../../../package.json';
 
 export default function LoginPage() {
   const { login } = useAuth();
@@ -83,6 +84,7 @@ export default function LoginPage() {
         <p className="auth-link">
           ¿No tienes cuenta? <Link to="/register">Registrarse</Link>
         </p>
+        <p className="auth-version">Versión {packageInfo.version}</p>
       </div>
     </div>
   );