diff --git a/apps/web/index.html b/apps/web/index.html
index 0322f2d01..40079b050 100644
--- a/apps/web/index.html
+++ b/apps/web/index.html
@@ -2,7 +2,7 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
     <link rel="icon" href="/favicon.ico" sizes="48x48" />
     <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
     <link rel="preconnect" href="https://fonts.googleapis.com" />
diff --git a/apps/web/src/components/ComposerPromptEditor.tsx b/apps/web/src/components/ComposerPromptEditor.tsx
index 338d9f7bf..c29cce7d6 100644
--- a/apps/web/src/components/ComposerPromptEditor.tsx
+++ b/apps/web/src/components/ComposerPromptEditor.tsx
@@ -1093,7 +1093,7 @@ function ComposerPromptEditorInner({
           contentEditable={
             <ContentEditable
               className={cn(
-                "block max-h-[200px] min-h-17.5 w-full overflow-y-auto whitespace-pre-wrap break-words bg-transparent text-[14px] leading-relaxed text-foreground focus:outline-none",
+                "block max-h-[200px] min-h-17.5 w-full overflow-y-auto whitespace-pre-wrap break-words bg-transparent text-[16px] sm:text-[14px] leading-relaxed text-foreground focus:outline-none",
                 className,
               )}
               data-testid="composer-editor"
@@ -1104,7 +1104,7 @@ function ComposerPromptEditorInner({
           }
           placeholder={
             terminalContexts.length > 0 ? null : (
-              <div className="pointer-events-none absolute inset-0 text-[14px] leading-relaxed text-muted-foreground/35">
+              <div className="pointer-events-none absolute inset-0 text-[16px] sm:text-[14px] leading-relaxed text-muted-foreground/35">
                 {placeholder}
               </div>
             )
