diff --git a/app/src/main/java/com/aurora/store/compose/navigation/Destination.kt b/app/src/main/java/com/aurora/store/compose/navigation/Destination.kt
index 3f824027e..da381c775 100644
--- a/app/src/main/java/com/aurora/store/compose/navigation/Destination.kt
+++ b/app/src/main/java/com/aurora/store/compose/navigation/Destination.kt
@@ -45,4 +45,5 @@ sealed class Destination {
     data object Dispenser : Destination()
     data object UIPreference : Destination()
     data object UpdatesPreference : Destination()
+    data object SourceFilters : Destination()
 }
diff --git a/app/src/main/java/com/aurora/store/compose/navigation/NavDisplay.kt b/app/src/main/java/com/aurora/store/compose/navigation/NavDisplay.kt
index 773f09c03..0846dc0cf 100644
--- a/app/src/main/java/com/aurora/store/compose/navigation/NavDisplay.kt
+++ b/app/src/main/java/com/aurora/store/compose/navigation/NavDisplay.kt
@@ -53,6 +53,7 @@ import com.aurora.store.compose.ui.preferences.UIPreferenceScreen
 import com.aurora.store.compose.ui.preferences.installation.InstallationPreferenceScreen
 import com.aurora.store.compose.ui.preferences.installation.InstallerScreen
 import com.aurora.store.compose.ui.preferences.network.NetworkPreferenceScreen
+import com.aurora.store.compose.ui.preferences.updates.SourceFiltersScreen
 import com.aurora.store.compose.ui.preferences.updates.UpdatesPreferenceScreen
 import com.aurora.store.compose.ui.search.SearchScreen
 import com.aurora.store.compose.ui.splash.SplashScreen
@@ -147,6 +148,7 @@ fun NavDisplay(startDestination: NavKey) {
             Destination.Dispenser -> backstack.add(Screen.Dispenser)
             Destination.UIPreference -> backstack.add(Screen.UIPreference)
             Destination.UpdatesPreference -> backstack.add(Screen.UpdatesPreference)
+            Destination.SourceFilters -> backstack.add(Screen.SourceFilters)
         }
     }
 
@@ -262,7 +264,8 @@ fun NavDisplay(startDestination: NavKey) {
             entry<Screen.Settings> { SettingsScreen(onNavigateTo = ::navigate) }
             entry<Screen.NetworkPreference> { NetworkPreferenceScreen(onNavigateTo = ::navigate) }
             entry<Screen.UIPreference> { UIPreferenceScreen() }
-            entry<Screen.UpdatesPreference> { UpdatesPreferenceScreen() }
+            entry<Screen.UpdatesPreference> { UpdatesPreferenceScreen(onNavigateTo = ::navigate) }
+            entry<Screen.SourceFilters> { SourceFiltersScreen() }
         }
     )
 }
diff --git a/app/src/main/java/com/aurora/store/compose/navigation/Screen.kt b/app/src/main/java/com/aurora/store/compose/navigation/Screen.kt
index c651ab0d3..f8b0b0870 100644
--- a/app/src/main/java/com/aurora/store/compose/navigation/Screen.kt
+++ b/app/src/main/java/com/aurora/store/compose/navigation/Screen.kt
@@ -92,6 +92,9 @@ sealed class Screen : NavKey, Parcelable {
     @Serializable
     data object UpdatesPreference : Screen()
 
+    @Serializable
+    data object SourceFilters : Screen()
+
     @Serializable
     data object Splash : Screen()
 
diff --git a/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/SourceFiltersScreen.kt b/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/SourceFiltersScreen.kt
new file mode 100644
index 000000000..9c9ac0458
--- /dev/null
+++ b/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/SourceFiltersScreen.kt
@@ -0,0 +1,210 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Aurora OSS
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+
+package com.aurora.store.compose.ui.preferences.updates
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.tooling.preview.PreviewWrapper
+import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
+import com.aurora.store.R
+import com.aurora.store.compose.composable.TopAppBar
+import com.aurora.store.compose.preview.ThemePreviewProvider
+import com.aurora.store.util.Preferences
+import com.aurora.store.util.Preferences.PREFERENCE_FILTER_AURORA_ONLY
+import com.aurora.store.util.Preferences.PREFERENCE_FILTER_INSTALLERS
+import com.aurora.store.util.save
+import com.aurora.store.viewmodel.all.UpdatesViewModel
+
+@Composable
+fun SourceFiltersScreen(viewModel: UpdatesViewModel = hiltViewModel()) {
+    ScreenContent(onCheckUpdatesNow = { viewModel.updateHelper.checkUpdatesNow() })
+}
+
+@Composable
+private fun ScreenContent(onCheckUpdatesNow: () -> Unit = {}) {
+    val context = LocalContext.current
+
+    var auroraOnly by remember {
+        mutableStateOf(Preferences.getBoolean(context, PREFERENCE_FILTER_AURORA_ONLY))
+    }
+    var installers by remember {
+        mutableStateOf(Preferences.getStringSet(context, PREFERENCE_FILTER_INSTALLERS))
+    }
+    var showAddDialog by remember { mutableStateOf(false) }
+
+    // Trigger a fresh check on the way out so removed/added installers take effect
+    // without waiting for the next periodic run.
+    DisposableEffect(Unit) {
+        onDispose { onCheckUpdatesNow() }
+    }
+
+    if (showAddDialog) {
+        AddInstallerDialog(
+            existing = installers,
+            onAdd = { name ->
+                installers = installers + name
+                context.save(PREFERENCE_FILTER_INSTALLERS, installers)
+                showAddDialog = false
+            },
+            onDismiss = { showAddDialog = false }
+        )
+    }
+
+    Scaffold(
+        topBar = { TopAppBar(title = stringResource(R.string.pref_source_filters_title)) }
+    ) { paddingValues ->
+        LazyColumn(
+            modifier = Modifier
+                .padding(paddingValues)
+                .fillMaxSize()
+        ) {
+            item {
+                ListItem(
+                    modifier = Modifier.clickable {
+                        auroraOnly = !auroraOnly
+                        context.save(PREFERENCE_FILTER_AURORA_ONLY, auroraOnly)
+                    },
+                    headlineContent = { Text(stringResource(R.string.source_filters_all)) },
+                    supportingContent = {
+                        Text(stringResource(R.string.pref_source_filters_desc_all))
+                    },
+                    trailingContent = {
+                        Switch(
+                            checked = auroraOnly,
+                            onCheckedChange = { checked ->
+                                auroraOnly = checked
+                                context.save(PREFERENCE_FILTER_AURORA_ONLY, checked)
+                            }
+                        )
+                    }
+                )
+            }
+            item { HorizontalDivider() }
+            item {
+                ListItem(
+                    headlineContent = {
+                        Text(stringResource(R.string.source_filters_installers_header))
+                    }
+                )
+            }
+            if (installers.isEmpty()) {
+                item {
+                    ListItem(
+                        headlineContent = {
+                            Text(
+                                text = stringResource(R.string.source_filters_installers_empty),
+                                style = MaterialTheme.typography.bodyMedium,
+                                color = MaterialTheme.colorScheme.onSurfaceVariant
+                            )
+                        }
+                    )
+                }
+            } else {
+                items(items = installers.toList(), key = { it }) { name ->
+                    ListItem(
+                        headlineContent = { Text(name) },
+                        trailingContent = {
+                            IconButton(
+                                onClick = {
+                                    installers = installers - name
+                                    context.save(PREFERENCE_FILTER_INSTALLERS, installers)
+                                }
+                            ) {
+                                Icon(
+                                    painter = painterResource(R.drawable.ic_delete_forever),
+                                    contentDescription = stringResource(
+                                        R.string.source_filters_remove
+                                    )
+                                )
+                            }
+                        }
+                    )
+                }
+            }
+            item {
+                ListItem(
+                    modifier = Modifier.clickable { showAddDialog = true },
+                    leadingContent = {
+                        Icon(
+                            painter = painterResource(R.drawable.ic_add),
+                            contentDescription = null
+                        )
+                    },
+                    headlineContent = { Text(stringResource(R.string.source_filters_add)) }
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun AddInstallerDialog(
+    existing: Set<String>,
+    onAdd: (String) -> Unit,
+    onDismiss: () -> Unit
+) {
+    var value by remember { mutableStateOf("") }
+    val trimmed = value.trim()
+    val canAdd = trimmed.isNotEmpty() && trimmed !in existing
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text(stringResource(R.string.source_filters_add)) },
+        text = {
+            Column {
+                OutlinedTextField(
+                    value = value,
+                    label = { Text(stringResource(R.string.source_filters_add_dialog_hint)) },
+                    onValueChange = { value = it },
+                    singleLine = true
+                )
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = { onAdd(trimmed) }, enabled = canAdd) {
+                Text(stringResource(android.R.string.ok))
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismiss) {
+                Text(stringResource(R.string.action_cancel))
+            }
+        }
+    )
+}
+
+@PreviewWrapper(ThemePreviewProvider::class)
+@Preview
+@Composable
+private fun SourceFiltersScreenPreview() {
+    ScreenContent()
+}
diff --git a/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/UpdatesPreferenceScreen.kt b/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/UpdatesPreferenceScreen.kt
index 10462a9df..f457b5cf0 100644
--- a/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/UpdatesPreferenceScreen.kt
+++ b/app/src/main/java/com/aurora/store/compose/ui/preferences/updates/UpdatesPreferenceScreen.kt
@@ -44,10 +44,14 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.tooling.preview.PreviewWrapper
 import androidx.core.net.toUri
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import androidx.lifecycle.compose.LocalLifecycleOwner
 import com.aurora.extensions.isIgnoringBatteryOptimizations
 import com.aurora.extensions.isTAndAbove
 import com.aurora.store.R
 import com.aurora.store.compose.composable.TopAppBar
+import com.aurora.store.compose.navigation.Destination
 import com.aurora.store.compose.preview.ThemePreviewProvider
 import com.aurora.store.compose.ui.preferences.network.SingleChoiceDialog
 import com.aurora.store.data.model.UpdateMode
@@ -57,6 +61,7 @@ import com.aurora.store.util.Preferences.PREFERENCES_UPDATES_RESTRICTIONS_IDLE
 import com.aurora.store.util.Preferences.PREFERENCES_UPDATES_RESTRICTIONS_METERED
 import com.aurora.store.util.Preferences.PREFERENCE_FILTER_AURORA_ONLY
 import com.aurora.store.util.Preferences.PREFERENCE_FILTER_FDROID
+import com.aurora.store.util.Preferences.PREFERENCE_FILTER_INSTALLERS
 import com.aurora.store.util.Preferences.PREFERENCE_UPDATES_AUTO
 import com.aurora.store.util.Preferences.PREFERENCE_UPDATES_CHECK_INTERVAL
 import com.aurora.store.util.Preferences.PREFERENCE_UPDATES_EXTENDED
@@ -65,12 +70,16 @@ import com.aurora.store.viewmodel.all.UpdatesViewModel
 import kotlin.math.abs
 
 @Composable
-fun UpdatesPreferenceScreen(viewModel: UpdatesViewModel = hiltViewModel()) {
+fun UpdatesPreferenceScreen(
+    viewModel: UpdatesViewModel = hiltViewModel(),
+    onNavigateTo: (Destination) -> Unit = {}
+) {
     ScreenContent(
         onCancelAutomatedCheck = { viewModel.updateHelper.cancelAutomatedCheck() },
         onScheduleAutomatedCheck = { viewModel.updateHelper.scheduleAutomatedCheck() },
         onUpdateAutomatedCheck = { viewModel.updateHelper.updateAutomatedCheck() },
-        onCheckUpdatesNow = { viewModel.updateHelper.checkUpdatesNow() }
+        onCheckUpdatesNow = { viewModel.updateHelper.checkUpdatesNow() },
+        onNavigateTo = onNavigateTo
     )
 }
 
@@ -79,7 +88,8 @@ private fun ScreenContent(
     onCancelAutomatedCheck: () -> Unit = {},
     onScheduleAutomatedCheck: () -> Unit = {},
     onUpdateAutomatedCheck: () -> Unit = {},
-    onCheckUpdatesNow: () -> Unit = {}
+    onCheckUpdatesNow: () -> Unit = {},
+    onNavigateTo: (Destination) -> Unit = {}
 ) {
     val context = LocalContext.current
     val autoEntries = stringArrayResource(R.array.pref_updates_auto)
@@ -96,12 +106,26 @@ private fun ScreenContent(
     var filterFDroid by remember {
         mutableStateOf(Preferences.getBoolean(context, PREFERENCE_FILTER_FDROID, true))
     }
-    var filterAuroraOnly by remember {
-        mutableStateOf(Preferences.getBoolean(context, PREFERENCE_FILTER_AURORA_ONLY))
-    }
     var updatesExtended by remember {
         mutableStateOf(Preferences.getBoolean(context, PREFERENCE_UPDATES_EXTENDED))
     }
+
+    // Re-read source-filter prefs after returning from SourceFiltersScreen.
+    val lifecycleOwner = LocalLifecycleOwner.current
+    var refreshKey by remember { mutableIntStateOf(0) }
+    DisposableEffect(lifecycleOwner) {
+        val observer = LifecycleEventObserver { _, event ->
+            if (event == Lifecycle.Event.ON_RESUME) refreshKey++
+        }
+        lifecycleOwner.lifecycle.addObserver(observer)
+        onDispose { lifecycleOwner.lifecycle.removeObserver(observer) }
+    }
+    val filterAuroraOnly = remember(refreshKey) {
+        Preferences.getBoolean(context, PREFERENCE_FILTER_AURORA_ONLY)
+    }
+    val installerCount = remember(refreshKey) {
+        Preferences.getStringSet(context, PREFERENCE_FILTER_INSTALLERS).size
+    }
     var showAutoDialog by remember { mutableStateOf(false) }
     var showFrequencyDialog by remember { mutableStateOf(false) }
     var showRestrictionsDialog by remember { mutableStateOf(false) }
@@ -248,6 +272,23 @@ private fun ScreenContent(
                     Text(stringResource(R.string.pref_updates_app_source))
                 })
             }
+            item {
+                ListItem(
+                    modifier = Modifier.clickable {
+                        onNavigateTo(Destination.SourceFilters)
+                    },
+                    headlineContent = {
+                        Text(stringResource(R.string.pref_source_filters_title))
+                    },
+                    supportingContent = {
+                        Text(sourceFiltersSummary(filterAuroraOnly, installerCount))
+                    }
+                )
+            }
+            item { HorizontalDivider() }
+            item {
+                ListItem(headlineContent = { Text(stringResource(R.string.pref_common_advanced)) })
+            }
             item {
                 ListItem(
                     modifier = Modifier.clickable {
@@ -271,33 +312,6 @@ private fun ScreenContent(
                     }
                 )
             }
-            item {
-                ListItem(
-                    modifier = Modifier.clickable {
-                        filterAuroraOnly = !filterAuroraOnly
-                        context.save(PREFERENCE_FILTER_AURORA_ONLY, filterAuroraOnly)
-                        if (filterAuroraOnly) filterFDroid = false
-                        onCheckUpdatesNow()
-                    },
-                    headlineContent = { Text(stringResource(R.string.pref_aurora_only)) },
-                    supportingContent = { Text(stringResource(R.string.pref_aurora_only_desc)) },
-                    trailingContent = {
-                        Switch(
-                            checked = filterAuroraOnly,
-                            onCheckedChange = { checked ->
-                                filterAuroraOnly = checked
-                                context.save(PREFERENCE_FILTER_AURORA_ONLY, checked)
-                                if (checked) filterFDroid = false
-                                onCheckUpdatesNow()
-                            }
-                        )
-                    }
-                )
-            }
-            item { HorizontalDivider() }
-            item {
-                ListItem(headlineContent = { Text(stringResource(R.string.pref_common_advanced)) })
-            }
             item {
                 ListItem(
                     modifier = Modifier.clickable {
@@ -458,6 +472,13 @@ private fun selectedFrequencyIndex(storedHours: Int): Int {
     return UPDATE_INTERVAL_HOURS.indices.minBy { abs(UPDATE_INTERVAL_HOURS[it] - storedHours) }
 }
 
+@Composable
+private fun sourceFiltersSummary(allEnabled: Boolean, count: Int): String = when {
+    allEnabled -> stringResource(R.string.pref_source_filters_desc_all)
+    count == 0 -> stringResource(R.string.pref_source_filters_desc_none)
+    else -> stringResource(R.string.pref_source_filters_desc_count, count)
+}
+
 @PreviewWrapper(ThemePreviewProvider::class)
 @Preview
 @Composable
diff --git a/app/src/main/java/com/aurora/store/data/work/UpdateWorker.kt b/app/src/main/java/com/aurora/store/data/work/UpdateWorker.kt
index f0bbd8e97..f32a14527 100644
--- a/app/src/main/java/com/aurora/store/data/work/UpdateWorker.kt
+++ b/app/src/main/java/com/aurora/store/data/work/UpdateWorker.kt
@@ -166,12 +166,23 @@ class UpdateWorker @AssistedInject constructor(
                 .filter { if (!isExtendedUpdateEnabled) it.applicationInfo!!.enabled else true }
 
             // Filter out packages based on user's preferences
+            val installerFilters = Preferences.getStringSet(
+                context,
+                Preferences.PREFERENCE_FILTER_INSTALLERS
+            )
             val filteredPackages = if (isAuroraOnlyFilterEnabled) {
                 packages.filter { CertUtil.isAuroraStoreApp(context, it.packageName) }
             } else {
-                packages.filterNot {
-                    if (isFDroidFilterEnabled) {
-                        CertUtil.isFDroidApp(context, it.packageName)
+                packages.filterNot { pkg ->
+                    if (isFDroidFilterEnabled && CertUtil.isFDroidApp(context, pkg.packageName)) {
+                        return@filterNot true
+                    }
+                    if (installerFilters.isNotEmpty()) {
+                        val installer = PackageUtil.getInstallerPackageName(
+                            context,
+                            pkg.packageName
+                        )
+                        installer != null && installer in installerFilters
                     } else {
                         false
                     }
diff --git a/app/src/main/java/com/aurora/store/util/PackageUtil.kt b/app/src/main/java/com/aurora/store/util/PackageUtil.kt
index 1f800c942..75ad1b36c 100644
--- a/app/src/main/java/com/aurora/store/util/PackageUtil.kt
+++ b/app/src/main/java/com/aurora/store/util/PackageUtil.kt
@@ -42,6 +42,7 @@ import com.aurora.Constants.PACKAGE_NAME_PLAY_STORE
 import com.aurora.extensions.isHuawei
 import com.aurora.extensions.isOAndAbove
 import com.aurora.extensions.isPAndAbove
+import com.aurora.extensions.isRAndAbove
 import com.aurora.extensions.isTAndAbove
 import com.aurora.extensions.isVAndAbove
 import com.aurora.extensions.isValidApp
@@ -270,6 +271,22 @@ object PackageUtil {
         }
     }
 
+    /**
+     * Returns the installer package name that installed [packageName], or null if unknown / not
+     * installed. Uses [PackageManager.getInstallSourceInfo] on API 30+; falls back to the
+     * pre-30 deprecated API below that.
+     */
+    @Suppress("DEPRECATION")
+    fun getInstallerPackageName(context: Context, packageName: String): String? = try {
+        if (isRAndAbove) {
+            context.packageManager.getInstallSourceInfo(packageName).installingPackageName
+        } else {
+            context.packageManager.getInstallerPackageName(packageName)
+        }
+    } catch (_: PackageManager.NameNotFoundException) {
+        null
+    }
+
     @Throws(Exception::class)
     fun getPackageInfo(context: Context, packageName: String, flags: Int = 0): PackageInfo =
         if (isTAndAbove) {
diff --git a/app/src/main/java/com/aurora/store/util/Preferences.kt b/app/src/main/java/com/aurora/store/util/Preferences.kt
index 73a9ec17f..dc56d21ca 100644
--- a/app/src/main/java/com/aurora/store/util/Preferences.kt
+++ b/app/src/main/java/com/aurora/store/util/Preferences.kt
@@ -39,6 +39,7 @@ object Preferences {
 
     const val PREFERENCE_FILTER_FDROID = "PREFERENCE_FILTER_FDROID"
     const val PREFERENCE_FILTER_AURORA_ONLY = "PREFERENCE_FILTER_AURORA_ONLY"
+    const val PREFERENCE_FILTER_INSTALLERS = "PREFERENCE_FILTER_INSTALLERS"
 
     const val PREFERENCE_AUTO_DELETE = "PREFERENCE_AUTO_DELETE"
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 525df6792..e240d90e9 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -226,10 +226,20 @@
     <string name="pref_ui_no_for_you">"For you pages"</string>
     <string name="pref_ui_no_for_you_desc">"Display For you pages on home screen"</string>
     <string name="pref_ui_similar_apps">"Similar and related apps"</string>
-    <string name="pref_updates_incompatible">Show updates that may fail</string>
-    <string name="pref_updates_incompatible_desc">Display updates for incompatible or disabled apps that may fail to install</string>
-    <string name="pref_aurora_only">Filter apps from other sources</string>
-    <string name="pref_aurora_only_desc">Don\'t check for updates for apps installed from sources outside Aurora Store</string>
+    <string name="pref_updates_incompatible">"Show updates that may fail"</string>
+    <string name="pref_updates_incompatible_desc">"Display updates for incompatible or disabled apps that may fail to install."</string>
+    <string name="pref_aurora_only">"Filter apps from other sources."</string>
+    <string name="pref_aurora_only_desc">"Do not check for updates for apps installed from sources outside Aurora Store"</string>
+    <string name="pref_source_filters_title">"Filter apps from other sources"</string>
+    <string name="pref_source_filters_desc_all">"Skip every app not installed by Aurora Store"</string>
+    <string name="pref_source_filters_desc_none">"No installers excluded"</string>
+    <string name="pref_source_filters_desc_count">"%1$d installer(s) excluded"</string>
+    <string name="source_filters_all">"Filter all other installers"</string>
+    <string name="source_filters_installers_header">"Specific installers"</string>
+    <string name="source_filters_installers_empty">"No installers added yet"</string>
+    <string name="source_filters_add">"Add installer"</string>
+    <string name="source_filters_add_dialog_hint">"Enter package name"</string>
+    <string name="source_filters_remove">"Remove installer"</string>
     <string name="purchase_failed">"Download failed"</string>
     <string name="purchase_invalid">"App not purchased"</string>
     <string name="purchase_unsupported">"App not supported"</string>