diff --git a/artifacts/tx-os/src/components/notes/send-note-dialog.tsx b/artifacts/tx-os/src/components/notes/send-note-dialog.tsx
index 9738c0ae..cf9d4c05 100644
--- a/artifacts/tx-os/src/components/notes/send-note-dialog.tsx
+++ b/artifacts/tx-os/src/components/notes/send-note-dialog.tsx
@@ -162,14 +162,31 @@ export function SendNoteDialog({
   const dialogStyle: React.CSSProperties | undefined = keyboardActive
     ? {
         top: vv.offsetTop + vv.height / 2 - KEYBOARD_PREDICTION_INSET,
+        left: "50%",
         transform: "translate(-50%, -50%)",
         transition: "top 120ms ease",
       }
     : keyboardFallback
       ? {
-          top: "6vh",
+          // #634: bind `top` to `visualViewport.offsetTop` so when iPad
+          // PWA Safari scrolls the layout viewport down behind the
+          // soft keyboard, our top anchor follows the visible area
+          // instead of landing above it (which previously hid the
+          // dialog title + search input).
+          top: `calc(${vv.offsetTop || 0}px + 6vh)`,
+          // #634: pin `left: 50%` explicitly. Radix already sets it
+          // via Tailwind, but the inline `transform` below replaces
+          // Tailwind's `translate-x-[-50%] translate-y-[-50%]` so we
+          // also restate the horizontal anchor to defend against any
+          // animation/RTL interplay that was shifting the box left.
+          left: "50%",
           transform: "translate(-50%, 0)",
           maxHeight: "50dvh",
+          // #634: allow the dialog itself to scroll when its content
+          // is taller than the cap — otherwise the header could be
+          // clipped while only the bottom of the list/buttons stayed
+          // visible.
+          overflowY: "auto",
           transition: "top 120ms ease, transform 120ms ease",
         }
       : undefined;