diff --git a/apps/mobile/app.config.ts b/apps/mobile/app.config.ts
index 3631e25..09be2b0 100644
--- a/apps/mobile/app.config.ts
+++ b/apps/mobile/app.config.ts
@@ -51,6 +51,14 @@ const createConfig = (): Omit<ExpoConfig, 'extra'> & { extra: { eas: EASConfig }
       config: {
         usesNonExemptEncryption: false,
       },
+      infoPlist: {
+        // Allow connecting to self-hosted Open WebUI servers that are reachable
+        // only over plain HTTP (local network, Docker, Raspberry Pi, Tailscale).
+        NSAppTransportSecurity: {
+          NSAllowsArbitraryLoads: true,
+          NSAllowsLocalNetworking: true,
+        },
+      },
     },
     android: {
       package: appId,
@@ -107,6 +115,16 @@ const createConfig = (): Omit<ExpoConfig, 'extra'> & { extra: { eas: EASConfig }
           enableBackgroundRecording: false,
         },
       ],
+      [
+        'expo-build-properties',
+        {
+          android: {
+            // Allow plain HTTP connections to self-hosted servers (local network,
+            // Tailscale, etc.). Mirrors iOS NSAllowsArbitraryLoads above.
+            usesCleartextTraffic: true,
+          },
+        },
+      ],
     ]),
     newArchEnabled: true,
     extra,
diff --git a/i18n/mobile/shared/en.json b/i18n/mobile/shared/en.json
index 8221ea9..596f871 100644
--- a/i18n/mobile/shared/en.json
+++ b/i18n/mobile/shared/en.json
@@ -4,7 +4,7 @@
       "TEXT_INVALID_EMAIL": "Please enter a valid email address",
       "TEXT_REQUIRED_EMAIL": "Please enter your email",
       "TEXT_REQUIRED_PASSWORD": "Please enter your password",
-      "TEXT_INVALID_URL": "Please enter a valid URL in format https://your.domain",
+      "TEXT_INVALID_URL": "Please enter a valid server URL, e.g. https://your.domain or http://192.168.1.10:3000",
       "TEXT_REQUIRED_FOLDER_NAME": "Please enter a folder name"
     },
     "COMMON": {
diff --git a/libs/mobile/auth/features/email-sign-in-form/src/lib/forms/email-form.ts b/libs/mobile/auth/features/email-sign-in-form/src/lib/forms/email-form.ts
index d02467d..e86e80f 100644
--- a/libs/mobile/auth/features/email-sign-in-form/src/lib/forms/email-form.ts
+++ b/libs/mobile/auth/features/email-sign-in-form/src/lib/forms/email-form.ts
@@ -1,6 +1,6 @@
 import { i18n } from '@ronas-it/react-native-common-modules/i18n';
 import * as Yup from 'yup';
-import { emailValidator } from '@open-webui-react-native/mobile/shared/utils/validation';
+import { emailValidator, serverUrlValidator } from '@open-webui-react-native/mobile/shared/utils/validation';
 
 export class EmailFormSchema {
   public email: string;
@@ -17,21 +17,7 @@ export class EmailFormSchema {
     return Yup.object().shape({
       email: emailValidator().required(i18n.t('SHARED.VALIDATION.TEXT_REQUIRED_EMAIL')),
       password: Yup.string().required(i18n.t('SHARED.VALIDATION.TEXT_REQUIRED_PASSWORD')),
-      url: Yup.string()
-        .url(i18n.t('SHARED.VALIDATION.TEXT_INVALID_URL'))
-        .test('no-path', i18n.t('SHARED.VALIDATION.TEXT_INVALID_URL'), (value) => {
-          if (!value) return true;
-
-          try {
-            const normalizedValue = value.trim();
-            const url = new URL(normalizedValue);
-            const normalizedPath = url.pathname.replace(/\/+$/, '/');
-
-            return normalizedPath === '/' && !url.search && !url.hash;
-          } catch {
-            return false;
-          }
-        }),
+      url: serverUrlValidator(),
     });
   }
 }
diff --git a/libs/mobile/shared/utils/validation/src/index.ts b/libs/mobile/shared/utils/validation/src/index.ts
index 7edbb65..e2cc97a 100644
--- a/libs/mobile/shared/utils/validation/src/index.ts
+++ b/libs/mobile/shared/utils/validation/src/index.ts
@@ -1 +1,2 @@
 export * from './email-validation';
+export * from './server-url-validation';
diff --git a/libs/mobile/shared/utils/validation/src/server-url-validation.ts b/libs/mobile/shared/utils/validation/src/server-url-validation.ts
new file mode 100644
index 0000000..b501187
--- /dev/null
+++ b/libs/mobile/shared/utils/validation/src/server-url-validation.ts
@@ -0,0 +1,29 @@
+import { i18n } from '@ronas-it/react-native-common-modules/i18n';
+import * as Yup from 'yup';
+
+export const serverUrlValidator = (): Yup.StringSchema =>
+  Yup.string()
+    .trim()
+    .test('server-url', i18n.t('SHARED.VALIDATION.TEXT_INVALID_URL'), (value) => {
+      if (!value) {
+        return true;
+      }
+
+      try {
+        const url = new URL(value.trim());
+
+        if (url.protocol !== 'http:' && url.protocol !== 'https:') {
+          return false;
+        }
+
+        if (!url.hostname) {
+          return false;
+        }
+
+        const normalizedPath = url.pathname.replace(/\/+$/, '/');
+
+        return normalizedPath === '/' && !url.search && !url.hash;
+      } catch {
+        return false;
+      }
+    });