diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SoftwareAppsSubAssembler.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SoftwareAppsSubAssembler.kt
index b1eeed1aad..88710a4665 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SoftwareAppsSubAssembler.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SoftwareAppsSubAssembler.kt
@@ -44,7 +44,12 @@ class SoftwareAppsSubAssembler(
     ): List<RelayBasedFilter> {
         val feedSettings = key.followsPerRelay()
 
-        return makeSoftwareAppsFilter(feedSettings, since, key.feedStates.softwareAppsFeed.lastNoteCreatedAtIfFilled())
+        return makeSoftwareAppsFilter(
+            feedSettings,
+            since,
+            key.feedStates.softwareAppsFeed.lastNoteCreatedAtIfFilled(),
+            key.account.blockedRelayList.flow.value,
+        )
     }
 
     override fun user(key: SoftwareAppsQueryState) = key.account.userProfile()
@@ -77,6 +82,13 @@ class SoftwareAppsSubAssembler(
                         invalidateFilters()
                     }
                 },
+                key.scope.launch(Dispatchers.IO) {
+                    // Re-evaluate when the user blocks/unblocks zapstore's relay so the
+                    // global Apps feed stops/starts querying it without a restart.
+                    key.account.blockedRelayList.flow.collectLatest {
+                        invalidateFilters()
+                    }
+                },
                 key.account.scope.launch(Dispatchers.IO) {
                     key.feedStates.softwareAppsFeed.lastNoteCreatedAtWhenFullyLoaded.sample(5000).collectLatest {
                         invalidateFilters()
diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SubAssemblyHelper.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SubAssemblyHelper.kt
index be86fd0cdc..6dbfbf2fc2 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SubAssemblyHelper.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/SubAssemblyHelper.kt
@@ -33,16 +33,18 @@ import com.vitorpamplona.amethyst.ui.screen.loggedIn.softwareapps.datasource.sub
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.softwareapps.datasource.subassemblies.filterSoftwareAppsByMutedAuthors
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.softwareapps.datasource.subassemblies.filterSoftwareAppsGlobal
 import com.vitorpamplona.quartz.nip01Core.relay.client.pool.RelayBasedFilter
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
 
 fun makeSoftwareAppsFilter(
     feedSettings: IFeedTopNavPerRelayFilterSet,
     since: SincePerRelayMap?,
     defaultSince: Long? = null,
+    blockedRelays: Set<NormalizedRelayUrl> = emptySet(),
 ): List<RelayBasedFilter> =
     when (feedSettings) {
         is AllFollowsTopNavPerRelayFilterSet -> filterSoftwareAppsByFollows(feedSettings, since, defaultSince)
         is AuthorsTopNavPerRelayFilterSet -> filterSoftwareAppsByAuthors(feedSettings, since, defaultSince)
-        is GlobalTopNavPerRelayFilterSet -> filterSoftwareAppsGlobal(feedSettings, since, defaultSince)
+        is GlobalTopNavPerRelayFilterSet -> filterSoftwareAppsGlobal(feedSettings, since, defaultSince, blockedRelays)
         is HashtagTopNavPerRelayFilterSet -> filterSoftwareAppsByHashtag(feedSettings, since, defaultSince)
         is MutedAuthorsTopNavPerRelayFilterSet -> filterSoftwareAppsByMutedAuthors(feedSettings, since, defaultSince)
         else -> emptyList()
diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/subassemblies/FilterSoftwareAppsGlobal.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/subassemblies/FilterSoftwareAppsGlobal.kt
index a37c99ba02..056c3a067f 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/subassemblies/FilterSoftwareAppsGlobal.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/softwareapps/datasource/subassemblies/FilterSoftwareAppsGlobal.kt
@@ -26,22 +26,40 @@ import com.vitorpamplona.quartz.experimental.nip82SoftwareApps.application.Softw
 import com.vitorpamplona.quartz.experimental.nip82SoftwareApps.release.SoftwareReleaseEvent
 import com.vitorpamplona.quartz.nip01Core.relay.client.pool.RelayBasedFilter
 import com.vitorpamplona.quartz.nip01Core.relay.filters.Filter
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.normalizeRelayUrl
+
+// zapstore's relay indexes the entire software-app catalog (NIP-82), so the
+// global Apps feed always queries it in addition to the user's own relays —
+// unless the user has explicitly added it to their blocked relay list.
+val ZAPSTORE_APP_RELAY: NormalizedRelayUrl = "wss://relay.zapstore.dev".normalizeRelayUrl()
 
 fun filterSoftwareAppsGlobal(
     relays: GlobalTopNavPerRelayFilterSet,
     since: SincePerRelayMap?,
     defaultSince: Long? = null,
+    blockedRelays: Set<NormalizedRelayUrl> = emptySet(),
 ): List<RelayBasedFilter> {
-    if (relays.set.isEmpty()) return emptyList()
+    val relayUrls =
+        if (ZAPSTORE_APP_RELAY in blockedRelays) {
+            relays.set.keys
+        } else {
+            relays.set.keys + ZAPSTORE_APP_RELAY
+        }
 
-    return relays.set.map {
-        val sinceForRelay = since?.get(it.key)?.time ?: defaultSince
+    if (relayUrls.isEmpty()) return emptyList()
+
+    return relayUrls.map { relay ->
+        val sinceForRelay = since?.get(relay)?.time ?: defaultSince
         RelayBasedFilter(
-            relay = it.key,
+            relay = relay,
             filter =
                 Filter(
                     kinds = listOf(SoftwareApplicationEvent.KIND, SoftwareReleaseEvent.KIND),
-                    limit = 200,
+                    // Keep the limit < 100. Relays such as zapstore's score filter
+                    // specificity and treat a limit >= 100 (or none) as too vague,
+                    // rejecting the whole REQ with "filters are too vague".
+                    limit = 99,
                     since = sinceForRelay,
                 ),
         )