diff --git a/artifacts/postiz-mobile/app.json b/artifacts/postiz-mobile/app.json
index 92771d3..9bbd490 100644
--- a/artifacts/postiz-mobile/app.json
+++ b/artifacts/postiz-mobile/app.json
@@ -21,6 +21,7 @@
       }
     },
     "android": {
+      "package": "fr.gyozamancave.postizmobile",
       "permissions": [
         "READ_EXTERNAL_STORAGE",
         "WRITE_EXTERNAL_STORAGE",
diff --git a/artifacts/postiz-mobile/app/(tabs)/compose.tsx b/artifacts/postiz-mobile/app/(tabs)/compose.tsx
index 0669404..8f48bca 100644
--- a/artifacts/postiz-mobile/app/(tabs)/compose.tsx
+++ b/artifacts/postiz-mobile/app/(tabs)/compose.tsx
@@ -99,8 +99,9 @@ export default function ComposeScreen() {
       });
       const data = await uploadRes.json() as PostizUploadResult;
       return data;
-    } catch (e) {
-      Alert.alert("Upload Failed", "Could not upload image. Please try again.");
+    } catch (e: unknown) {
+      const msg = e instanceof Error ? e.message : String(e);
+      Alert.alert("Upload Failed", `Could not upload image.\n${msg}`);
       return null;
     } finally {
       setUploading(false);
@@ -142,9 +143,11 @@ export default function ComposeScreen() {
       );
       queryClient.invalidateQueries({ queryKey: ["posts"] });
       queryClient.invalidateQueries({ queryKey: ["posts-list"] });
-    } catch (e) {
+    } catch (e: unknown) {
       Haptics.notificationAsync(Haptics.NotificationFeedbackType.Error);
-      Alert.alert("Failed", "Could not submit post. Please try again.");
+      let msg = "Could not submit post.";
+      if (e instanceof Error) msg += `\n${e.message}`;
+      Alert.alert("Failed", msg);
     } finally {
       setSubmitting(false);
     }
diff --git a/artifacts/postiz-mobile/app/(tabs)/index.tsx b/artifacts/postiz-mobile/app/(tabs)/index.tsx
index 597ed42..31f12d3 100644
--- a/artifacts/postiz-mobile/app/(tabs)/index.tsx
+++ b/artifacts/postiz-mobile/app/(tabs)/index.tsx
@@ -1,5 +1,6 @@
 import { Feather } from "@expo/vector-icons";
 import { useQuery } from "@tanstack/react-query";
+import axios from "axios";
 import { router } from "expo-router";
 import React, { useMemo, useState } from "react";
 import {
@@ -17,6 +18,24 @@ import { PostizPost, usePostiz } from "@/context/PostizContext";
 import { useColors } from "@/hooks/useColors";
 import { StatusBadge } from "@/components/StatusBadge";
 
+function extractError(err: unknown): string {
+  if (axios.isAxiosError(err)) {
+    const status = err.response?.status;
+    const data = err.response?.data;
+    if (data) {
+      const body =
+        typeof data === "string"
+          ? data.slice(0, 200)
+          : (data?.message ?? data?.error ?? JSON.stringify(data)).toString().slice(0, 200);
+      return status ? `HTTP ${status}: ${body}` : body;
+    }
+    if (status) return `HTTP ${status} — ${err.message}`;
+    if (err.message) return err.message;
+  }
+  if (err instanceof Error) return err.message;
+  return "Unknown error";
+}
+
 function formatDate(date: Date): string {
   const y = date.getFullYear();
   const m = String(date.getMonth() + 1).padStart(2, "0");
@@ -189,6 +208,9 @@ export default function CalendarScreen() {
           <Text style={[styles.emptyText, { color: colors.mutedForeground }]}>
             Failed to load posts
           </Text>
+          <Text style={[styles.emptyText, { color: colors.error, fontSize: 11 }]} selectable>
+            {extractError(error)}
+          </Text>
           <TouchableOpacity onPress={() => refetch()} style={styles.retryBtn}>
             <Text style={[styles.retryText, { color: colors.primary }]}>Retry</Text>
           </TouchableOpacity>
diff --git a/artifacts/postiz-mobile/app/(tabs)/posts.tsx b/artifacts/postiz-mobile/app/(tabs)/posts.tsx
index 677b36f..0c82e91 100644
--- a/artifacts/postiz-mobile/app/(tabs)/posts.tsx
+++ b/artifacts/postiz-mobile/app/(tabs)/posts.tsx
@@ -1,8 +1,10 @@
 import { Feather } from "@expo/vector-icons";
 import { useQuery, useQueryClient } from "@tanstack/react-query";
+import axios from "axios";
 import React, { useState } from "react";
 import {
   ActivityIndicator,
+  Alert,
   FlatList,
   Platform,
   RefreshControl,
@@ -11,11 +13,30 @@ import {
   TouchableOpacity,
   View,
 } from "react-native";
+
 import { useSafeAreaInsets } from "react-native-safe-area-context";
 import { PostCard } from "@/components/PostCard";
 import { PostizPost, usePostiz } from "@/context/PostizContext";
 import { useColors } from "@/hooks/useColors";
 
+function extractError(err: unknown): string {
+  if (axios.isAxiosError(err)) {
+    const status = err.response?.status;
+    const data = err.response?.data;
+    if (data) {
+      const body =
+        typeof data === "string"
+          ? data.slice(0, 200)
+          : (data?.message ?? data?.error ?? JSON.stringify(data)).toString().slice(0, 200);
+      return status ? `HTTP ${status}: ${body}` : body;
+    }
+    if (status) return `HTTP ${status} — ${err.message}`;
+    if (err.message) return err.message;
+  }
+  if (err instanceof Error) return err.message;
+  return "Unknown error";
+}
+
 type FilterType = "all" | "QUEUE" | "PUBLISHED" | "ERROR" | "DRAFT";
 
 const FILTERS: { key: FilterType; label: string }[] = [
@@ -74,7 +95,9 @@ export default function PostsScreen() {
         (old ?? []).filter((p) => p.id !== id)
       );
       queryClient.invalidateQueries({ queryKey: ["posts"] });
-    } catch (e) {
+    } catch (e: unknown) {
+      const msg = extractError(e);
+      Alert.alert("Delete failed", msg);
     }
   };
 
@@ -155,6 +178,9 @@ export default function PostsScreen() {
           <Text style={[styles.emptyTitle, { color: colors.foreground }]}>
             Failed to load
           </Text>
+          <Text style={[styles.emptyText, { color: colors.mutedForeground }]} selectable>
+            {extractError(error)}
+          </Text>
           <TouchableOpacity
             onPress={() => refetch()}
             style={[styles.retryBtn, { backgroundColor: colors.primary }]}
diff --git a/artifacts/postiz-mobile/app/(tabs)/settings.tsx b/artifacts/postiz-mobile/app/(tabs)/settings.tsx
index 51fd2af..319c459 100644
--- a/artifacts/postiz-mobile/app/(tabs)/settings.tsx
+++ b/artifacts/postiz-mobile/app/(tabs)/settings.tsx
@@ -1,10 +1,12 @@
 import { Feather } from "@expo/vector-icons";
+import axios from "axios";
 import * as Haptics from "expo-haptics";
 import React, { useEffect, useState } from "react";
 import {
   ActivityIndicator,
   Alert,
   Platform,
+  ScrollView,
   StyleSheet,
   Text,
   TextInput,
@@ -15,9 +17,27 @@ import { KeyboardAwareScrollView } from "react-native-keyboard-controller";
 import { useSafeAreaInsets } from "react-native-safe-area-context";
 import { usePostiz } from "@/context/PostizContext";
 import { useColors } from "@/hooks/useColors";
-import axios from "axios";
 
-const DEFAULT_BASE_URL = "https://postiz.gyozamancave.fr/public/v1";
+const DEFAULT_BASE_URL = "https://postiz.gyozamancave.fr/api/public/v1";
+
+function extractAxiosError(err: unknown): string {
+  if (axios.isAxiosError(err)) {
+    const status = err.response?.status;
+    const data = err.response?.data;
+    if (data) {
+      const body =
+        typeof data === "string"
+          ? data.slice(0, 200)
+          : (data?.message ?? data?.error ?? JSON.stringify(data)).toString().slice(0, 200);
+      return status ? `HTTP ${status}: ${body}` : body;
+    }
+    if (status) return `HTTP ${status} — ${err.message}`;
+    if (err.code === "ECONNABORTED") return "Request timed out (10s). Check that the URL is reachable.";
+    if (err.message) return err.message;
+  }
+  if (err instanceof Error) return err.message;
+  return "Unknown error";
+}
 
 export default function SettingsScreen() {
   const colors = useColors();
@@ -29,9 +49,8 @@ export default function SettingsScreen() {
   const [showKey, setShowKey] = useState(false);
   const [validating, setValidating] = useState(false);
   const [saving, setSaving] = useState(false);
-  const [validationStatus, setValidationStatus] = useState<
-    "idle" | "ok" | "error"
-  >("idle");
+  const [validationStatus, setValidationStatus] = useState<"idle" | "ok" | "error">("idle");
+  const [errorDetail, setErrorDetail] = useState<string>("");
 
   useEffect(() => {
     setInputKey(apiKey);
@@ -45,19 +64,48 @@ export default function SettingsScreen() {
     }
     setValidating(true);
     setValidationStatus("idle");
-    try {
-      await axios.get(`${inputUrl.replace(/\/$/, "")}/integrations`, {
-        headers: { Authorization: inputKey.trim() },
-        timeout: 10000,
-      });
-      setValidationStatus("ok");
-      Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
-    } catch {
-      setValidationStatus("error");
-      Haptics.notificationAsync(Haptics.NotificationFeedbackType.Error);
-    } finally {
-      setValidating(false);
+    setErrorDetail("");
+    const cleanUrl = inputUrl.trim().replace(/\/$/, "");
+
+    const authVariants = [
+      inputKey.trim(),
+      `Bearer ${inputKey.trim()}`,
+    ];
+
+    let lastError: string = "";
+
+    for (const authHeader of authVariants) {
+      try {
+        await axios.get(`${cleanUrl}/integrations`, {
+          headers: { Authorization: authHeader },
+          timeout: 10000,
+          maxRedirects: 0,
+        });
+        setValidationStatus("ok");
+        Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
+        setValidating(false);
+        return;
+      } catch (err: unknown) {
+        if (axios.isAxiosError(err)) {
+          const status = err.response?.status;
+          if (status === 307 || status === 301 || status === 302 || status === 308) {
+            const location = err.response?.headers?.location ?? "unknown";
+            lastError = `HTTP ${status} redirect → ${location}. The API rejected the request and redirected to login. Check the Authorization header format or the base URL.`;
+            continue;
+          }
+          if (status === 401 || status === 403) {
+            lastError = `HTTP ${status}: Invalid or expired API key.`;
+            continue;
+          }
+        }
+        lastError = extractAxiosError(err);
+      }
     }
+
+    setErrorDetail(lastError);
+    setValidationStatus("error");
+    Haptics.notificationAsync(Haptics.NotificationFeedbackType.Error);
+    setValidating(false);
   };
 
   const handleSave = async () => {
@@ -70,8 +118,8 @@ export default function SettingsScreen() {
       await saveSettings(inputKey.trim(), inputUrl.trim().replace(/\/$/, ""));
       Haptics.notificationAsync(Haptics.NotificationFeedbackType.Success);
       Alert.alert("Saved", "Settings saved successfully.");
-    } catch {
-      Alert.alert("Error", "Failed to save settings.");
+    } catch (err: unknown) {
+      Alert.alert("Error", `Failed to save settings.\n${extractAxiosError(err)}`);
     } finally {
       setSaving(false);
     }
@@ -91,6 +139,7 @@ export default function SettingsScreen() {
             setInputKey("");
             setInputUrl(DEFAULT_BASE_URL);
             setValidationStatus("idle");
+            setErrorDetail("");
           },
         },
       ]
@@ -104,8 +153,7 @@ export default function SettingsScreen() {
         styles.container,
         {
           paddingTop: Platform.OS === "web" ? 67 : 24,
-          paddingBottom:
-            Platform.OS === "web" ? 100 : insets.bottom + 40,
+          paddingBottom: Platform.OS === "web" ? 100 : insets.bottom + 40,
         },
       ]}
       bottomOffset={60}
@@ -131,28 +179,15 @@ export default function SettingsScreen() {
       )}
 
       <View style={styles.section}>
-        <Text style={[styles.label, { color: colors.mutedForeground }]}>
-          BASE URL
-        </Text>
-        <View
-          style={[
-            styles.inputWrap,
-            {
-              backgroundColor: colors.card,
-              borderColor: colors.border,
-            },
-          ]}
-        >
+        <Text style={[styles.label, { color: colors.mutedForeground }]}>BASE URL</Text>
+        <View style={[styles.inputWrap, { backgroundColor: colors.card, borderColor: colors.border }]}>
           <Feather name="globe" size={16} color={colors.mutedForeground} style={styles.inputIcon} />
           <TextInput
             style={[styles.input, { color: colors.foreground }]}
-            placeholder="https://postiz.example.com/public/v1"
+            placeholder="https://postiz.example.com/api/public/v1"
             placeholderTextColor={colors.mutedForeground}
             value={inputUrl}
-            onChangeText={(t) => {
-              setInputUrl(t);
-              setValidationStatus("idle");
-            }}
+            onChangeText={(t) => { setInputUrl(t); setValidationStatus("idle"); setErrorDetail(""); }}
             autoCapitalize="none"
             autoCorrect={false}
             keyboardType="url"
@@ -161,40 +196,24 @@ export default function SettingsScreen() {
       </View>
 
       <View style={styles.section}>
-        <Text style={[styles.label, { color: colors.mutedForeground }]}>
-          API KEY
-        </Text>
-        <View
-          style={[
-            styles.inputWrap,
-            {
-              backgroundColor: colors.card,
-              borderColor: colors.border,
-            },
-          ]}
-        >
+        <Text style={[styles.label, { color: colors.mutedForeground }]}>API KEY</Text>
+        <View style={[styles.inputWrap, { backgroundColor: colors.card, borderColor: colors.border }]}>
           <Feather name="key" size={16} color={colors.mutedForeground} style={styles.inputIcon} />
           <TextInput
             style={[styles.input, { color: colors.foreground }]}
             placeholder="Enter your API key"
             placeholderTextColor={colors.mutedForeground}
             value={inputKey}
-            onChangeText={(t) => {
-              setInputKey(t);
-              setValidationStatus("idle");
-            }}
+            onChangeText={(t) => { setInputKey(t); setValidationStatus("idle"); setErrorDetail(""); }}
             secureTextEntry={!showKey}
             autoCapitalize="none"
             autoCorrect={false}
           />
           <TouchableOpacity onPress={() => setShowKey((v) => !v)} activeOpacity={0.7}>
-            <Feather
-              name={showKey ? "eye-off" : "eye"}
-              size={16}
-              color={colors.mutedForeground}
-            />
+            <Feather name={showKey ? "eye-off" : "eye"} size={16} color={colors.mutedForeground} />
           </TouchableOpacity>
         </View>
+
         {validationStatus === "ok" && (
           <View style={styles.validationRow}>
             <Feather name="check-circle" size={13} color={colors.success} />
@@ -203,12 +222,22 @@ export default function SettingsScreen() {
             </Text>
           </View>
         )}
+
         {validationStatus === "error" && (
-          <View style={styles.validationRow}>
-            <Feather name="x-circle" size={13} color={colors.error} />
-            <Text style={[styles.validationText, { color: colors.error }]}>
-              Could not connect. Check your URL and API key.
-            </Text>
+          <View style={[styles.errorBox, { backgroundColor: colors.error + "12", borderColor: colors.error + "30" }]}>
+            <View style={styles.errorHeader}>
+              <Feather name="x-circle" size={13} color={colors.error} />
+              <Text style={[styles.errorTitle, { color: colors.error }]}>
+                Could not connect
+              </Text>
+            </View>
+            {!!errorDetail && (
+              <ScrollView style={styles.errorScroll} nestedScrollEnabled>
+                <Text style={[styles.errorDetail, { color: colors.error }]} selectable>
+                  {errorDetail}
+                </Text>
+              </ScrollView>
+            )}
           </View>
         )}
       </View>
@@ -217,13 +246,7 @@ export default function SettingsScreen() {
         onPress={handleValidate}
         activeOpacity={0.8}
         disabled={validating}
-        style={[
-          styles.validateBtn,
-          {
-            backgroundColor: colors.card,
-            borderColor: colors.border,
-          },
-        ]}
+        style={[styles.validateBtn, { backgroundColor: colors.card, borderColor: colors.border }]}
       >
         {validating ? (
           <ActivityIndicator color={colors.primary} size="small" />
@@ -241,10 +264,7 @@ export default function SettingsScreen() {
         onPress={handleSave}
         activeOpacity={0.85}
         disabled={saving}
-        style={[
-          styles.saveBtn,
-          { backgroundColor: saving ? colors.muted : colors.primary },
-        ]}
+        style={[styles.saveBtn, { backgroundColor: saving ? colors.muted : colors.primary }]}
       >
         {saving ? (
           <ActivityIndicator color={colors.primaryForeground} size="small" />
@@ -265,9 +285,7 @@ export default function SettingsScreen() {
           style={[styles.clearBtn, { borderColor: colors.destructive + "60" }]}
         >
           <Feather name="log-out" size={14} color={colors.destructive} />
-          <Text style={[styles.clearText, { color: colors.destructive }]}>
-            Disconnect
-          </Text>
+          <Text style={[styles.clearText, { color: colors.destructive }]}>Disconnect</Text>
         </TouchableOpacity>
       )}
 
@@ -349,6 +367,29 @@ const styles = StyleSheet.create({
     fontSize: 12,
     fontFamily: "Inter_400Regular",
   },
+  errorBox: {
+    borderRadius: 10,
+    borderWidth: 1,
+    padding: 12,
+    gap: 6,
+  },
+  errorHeader: {
+    flexDirection: "row",
+    alignItems: "center",
+    gap: 6,
+  },
+  errorTitle: {
+    fontSize: 12,
+    fontFamily: "Inter_600SemiBold",
+  },
+  errorScroll: {
+    maxHeight: 80,
+  },
+  errorDetail: {
+    fontSize: 11,
+    fontFamily: "Inter_400Regular",
+    lineHeight: 16,
+  },
   validateBtn: {
     flexDirection: "row",
     alignItems: "center",
diff --git a/artifacts/postiz-mobile/context/PostizContext.tsx b/artifacts/postiz-mobile/context/PostizContext.tsx
index 6b30259..2d69ab4 100644
--- a/artifacts/postiz-mobile/context/PostizContext.tsx
+++ b/artifacts/postiz-mobile/context/PostizContext.tsx
@@ -10,7 +10,7 @@ import React, {
 
 const API_KEY_STORAGE = "postiz_api_key";
 const BASE_URL_STORAGE = "postiz_base_url";
-const DEFAULT_BASE_URL = "https://postiz.gyozamancave.fr/public/v1";
+const DEFAULT_BASE_URL = "https://postiz.gyozamancave.fr/api/public/v1";
 
 export interface PostizIntegration {
   id: string;