diff --git a/client/src/pages/article.tsx b/client/src/pages/article.tsx
index f32a546..8f5df52 100644
--- a/client/src/pages/article.tsx
+++ b/client/src/pages/article.tsx
@@ -10,6 +10,7 @@ import { Skeleton } from "@/components/ui/skeleton";
 import Header from "@/components/header";
 import Footer from "@/components/footer";
 import AdSense, { InArticleAd, PageSideAds } from "@/components/adsense";
+import { useIsMobile } from "@/hooks/use-mobile";
 import DOMPurify from "dompurify";
 import ShareButtons from "@/components/share-buttons";
 import InterstitialAd from "@/components/interstitial-ad";
@@ -98,6 +99,7 @@ function RelatedArticles({ currentSlug }: { currentSlug: string }) {
 
 export default function ArticlePage() {
   const { slug } = useParams<{ slug: string }>();
+  const isMobile = useIsMobile();
 
   const { data: article, isLoading, error } = useQuery<Article>({
     queryKey: ["/api/articles", slug],
@@ -298,7 +300,7 @@ export default function ArticlePage() {
         {(() => {
           const sanitized = sanitizeContent(article.content);
           const blocks = sanitized.split(/(?=<(?:p|h[2-4]|div)[\s>])/i).filter(Boolean);
-          const AD_INTERVAL = 3;
+          const AD_INTERVAL = isMobile ? 2 : 3;
           const segments: string[] = [];
           for (let i = 0; i < blocks.length; i += AD_INTERVAL) {
             segments.push(blocks.slice(i, i + AD_INTERVAL).join(""));