diff --git a/app/jobs/inboxes/fetch_app_store_reviews_job.rb b/app/jobs/inboxes/fetch_app_store_reviews_job.rb
index 87732162c..75453c14f 100644
--- a/app/jobs/inboxes/fetch_app_store_reviews_job.rb
+++ b/app/jobs/inboxes/fetch_app_store_reviews_job.rb
@@ -4,9 +4,23 @@ class Inboxes::FetchAppStoreReviewsJob < ApplicationJob
   def perform(channel)
     return unless channel.account.feature_enabled?(:channel_app_store)
 
+    synced_until = sync_reviews(channel)
+    return if synced_until.blank?
+
+    channel.update!(last_synced_at: synced_until)
+  rescue StandardError => e
+    ChatwootExceptionTracker.new(e, account: channel.account).capture_exception
+  end
+
+  private
+
+  def sync_reviews(channel)
     failed = false
+    synced_dates = []
+
     channel.fetch_reviews.each do |review_payload|
       ::AppStore::ReviewBuilder.new(review_payload: review_payload, channel: channel).perform
+      synced_dates << parsed_review_created_at(review_payload)
     rescue StandardError => e
       failed = true
       ChatwootExceptionTracker.new(e, account: channel.account).capture_exception
@@ -14,8 +28,12 @@ class Inboxes::FetchAppStoreReviewsJob < ApplicationJob
 
     return if failed
 
-    channel.update!(last_synced_at: Time.current)
-  rescue StandardError => e
-    ChatwootExceptionTracker.new(e, account: channel.account).capture_exception
+    synced_dates.compact.max
+  end
+
+  def parsed_review_created_at(review_payload)
+    Time.zone.parse(review_payload.dig('review', 'attributes', 'createdDate').to_s)
+  rescue StandardError
+    nil
   end
 end
diff --git a/app/services/app_store/review_builder.rb b/app/services/app_store/review_builder.rb
index 875e2c921..ca5fe751b 100644
--- a/app/services/app_store/review_builder.rb
+++ b/app/services/app_store/review_builder.rb
@@ -51,7 +51,7 @@ class AppStore::ReviewBuilder
   end
 
   def rating
-    attributes['rating'].to_i
+    attributes['rating'].to_i.clamp(0, 5)
   end
 
   def created_at
diff --git a/spec/jobs/inboxes/fetch_app_store_reviews_job_spec.rb b/spec/jobs/inboxes/fetch_app_store_reviews_job_spec.rb
index 3779e34d7..545a7e8cc 100644
--- a/spec/jobs/inboxes/fetch_app_store_reviews_job_spec.rb
+++ b/spec/jobs/inboxes/fetch_app_store_reviews_job_spec.rb
@@ -4,7 +4,15 @@ require 'rails_helper'
 
 RSpec.describe Inboxes::FetchAppStoreReviewsJob do
   let(:channel) { create(:channel_app_store, last_synced_at: nil) }
-  let(:review_payload) { { 'review' => { 'id' => 'review-1' }, 'response' => nil } }
+  let(:review_payload) do
+    {
+      'review' => {
+        'id' => 'review-1',
+        'attributes' => { 'createdDate' => '2026-05-20T10:00:00-00:00' }
+      },
+      'response' => nil
+    }
+  end
   let(:review_builder) { instance_double(AppStore::ReviewBuilder, perform: true) }
 
   before do
@@ -24,7 +32,23 @@ RSpec.describe Inboxes::FetchAppStoreReviewsJob do
     described_class.perform_now(channel)
 
     expect(review_builder).to have_received(:perform)
-    expect(channel.reload.last_synced_at).to be_present
+    expect(channel.reload.last_synced_at).to eq(Time.zone.parse('2026-05-20T10:00:00-00:00'))
+  end
+
+  it 'updates the sync timestamp to the latest fetched review date' do
+    older_payload = review_payload.deep_dup
+    newer_payload = review_payload.deep_dup
+    older_payload['review']['id'] = 'review-1'
+    older_payload['review']['attributes']['createdDate'] = '2026-05-20T10:00:00-00:00'
+    newer_payload['review']['id'] = 'review-2'
+    newer_payload['review']['attributes']['createdDate'] = '2026-05-20T11:00:00-00:00'
+
+    allow(channel).to receive(:fetch_reviews).and_return([newer_payload, older_payload])
+    allow(AppStore::ReviewBuilder).to receive(:new).and_return(review_builder)
+
+    described_class.perform_now(channel)
+
+    expect(channel.reload.last_synced_at).to eq(Time.zone.parse('2026-05-20T11:00:00-00:00'))
   end
 
   it 'captures per-review errors and continues syncing' do
diff --git a/spec/services/app_store/review_builder_spec.rb b/spec/services/app_store/review_builder_spec.rb
index 3b08409cf..50219caff 100644
--- a/spec/services/app_store/review_builder_spec.rb
+++ b/spec/services/app_store/review_builder_spec.rb
@@ -74,6 +74,18 @@ RSpec.describe AppStore::ReviewBuilder do
       expect(review_message.content).to include('★★★★☆ (4/5)')
     end
 
+    it 'clamps the review rating before building the message content' do
+      invalid_rating_payload = review_payload.deep_dup
+      invalid_rating_payload['review']['attributes']['rating'] = 7
+      invalid_rating_payload['response'] = nil
+
+      described_class.new(review_payload: invalid_rating_payload, channel: channel).perform
+
+      review_message = inbox.conversations.last.messages.incoming.find_by(source_id: 'review-1')
+      expect(review_message.content).to include('★★★★★ (5/5)')
+      expect(review_message.content_attributes['app_store']).to include('rating' => 5)
+    end
+
     it 'falls back to current time when Apple timestamps are blank' do
       blank_timestamp_payload = review_payload.deep_dup
       blank_timestamp_payload['review']['attributes']['createdDate'] = ''