diff --git a/packages/react-native/src/components/survey-web-view.tsx b/packages/react-native/src/components/survey-web-view.tsx
index 36a74cd..47efcc9 100644
--- a/packages/react-native/src/components/survey-web-view.tsx
+++ b/packages/react-native/src/components/survey-web-view.tsx
@@ -12,6 +12,7 @@ import { RNConfig } from "@/lib/common/config";
 import { Logger } from "@/lib/common/logger";
 import { filterSurveys, getLanguageCode, getStyling } from "@/lib/common/utils";
 import { SurveyStore } from "@/lib/survey/store";
+import { refreshSegmentsAfterInteraction } from "@/lib/user/interaction-refresh";
 import { type TUserState, ZJsRNWebViewOnMessageData } from "@/types/config";
 import type { SurveyContainerProps, TSurvey } from "@/types/survey";
 
@@ -196,6 +197,7 @@ export function SurveyWebView(props: SurveyWebViewProps): JSX.Element | null {
                 const {
                   onClose,
                   onDisplayCreated,
+                  onFinished,
                   onOpenExternalURL,
                   onOpenExternalURLParams,
                   onResponseCreated,
@@ -230,6 +232,16 @@ export function SurveyWebView(props: SurveyWebViewProps): JSX.Element | null {
                     user: updatedUserState,
                     filteredSurveys,
                   });
+
+                  // A new display can flip "have seen X" / "have not seen X" segments. The
+                  // optimistic update above keeps recontact/display-cap correct locally; this
+                  // pulls fresh `segments` (gated + coalesced) so interaction targeting is
+                  // current by the time this survey closes and the next trigger evaluates.
+                  refreshSegmentsAfterInteraction(
+                    previousConfig.user.data.userId,
+                    props.survey,
+                    "onDisplay",
+                  );
                 }
                 if (onResponseCreated) {
                   const responses = appConfig.get().user.data.responses;
@@ -252,6 +264,24 @@ export function SurveyWebView(props: SurveyWebViewProps): JSX.Element | null {
                     user: newPersonState,
                     filteredSurveys,
                   });
+
+                  // A created response flips "have started responding to X" segments. The
+                  // "completed X" case is handled by onFinished below.
+                  refreshSegmentsAfterInteraction(
+                    appConfig.get().user.data.userId,
+                    props.survey,
+                    "onResponse",
+                  );
+                }
+                if (onFinished) {
+                  // Survey completion flips "have completed X" (and clears "have not completed
+                  // X") segments. The surveys library only fires this after the finished
+                  // response has been sent, so the server recompute sees finished=true.
+                  refreshSegmentsAfterInteraction(
+                    appConfig.get().user.data.userId,
+                    props.survey,
+                    "onFinished",
+                  );
                 }
                 if (onOpenExternalURL && onOpenExternalURLParams?.url) {
                   void openExternalUrl(onOpenExternalURLParams.url);
@@ -317,7 +347,8 @@ const styles = StyleSheet.create({
   },
 });
 
-const renderHtml = (
+/** Exported for tests — not re-exported from the package entry point. */
+export const renderHtml = (
   options: Partial<SurveyContainerProps> & { appUrl?: string },
 ): string => {
   const surveyScriptUrl = getSurveyScriptUrl(options.appUrl);
@@ -336,6 +367,15 @@ const renderHtml = (
   `;
   }
 
+  // Escape "<" so survey content can't inject "</script>" (or "<script"/"<!--") and break
+  // out of the inline <script> below: "<" occurs only inside JSON string values, and the
+  // WebView's JS engine decodes the escaped "<" back to a literal "<" when parsing the
+  // object literal, so the payload is preserved exactly. See ENG-1813.
+  const optionsJson = JSON.stringify(options).replaceAll(
+    "<",
+    String.raw`\u003c`,
+  );
+
   return `
   <!doctype html>
   <html>
@@ -368,15 +408,23 @@ const renderHtml = (
         window.ReactNativeWebView.postMessage(JSON.stringify({ onResponseCreated: true }));
       };
 
+      // Fires once the finished response has been accepted by the backend — the surveys library
+      // gates this on \`isResponseSendingFinished\`, and \`getSetIsResponseSendingFinished\` below
+      // flips that initial state to false.
+      function onFinished() {
+        window.ReactNativeWebView.postMessage(JSON.stringify({ onFinished: true }));
+      };
+
       function getSetIsResponseSendingFinished() { /* noop — presence flips initial state to false so loading spinner renders until ResponseQueue resolves */ };
       function getSetIsError() { /* noop */ };
 
       function loadSurvey() {
-        const options = ${JSON.stringify(options)};
+        const options = ${optionsJson};
         const surveyProps = {
           ...options,
           onDisplayCreated,
           onResponseCreated,
+          onFinished,
           onClose,
           getSetIsResponseSendingFinished,
           getSetIsError,
diff --git a/packages/react-native/src/components/tests/survey-web-view-harness.test.ts b/packages/react-native/src/components/tests/survey-web-view-harness.test.ts
new file mode 100644
index 0000000..844751c
--- /dev/null
+++ b/packages/react-native/src/components/tests/survey-web-view-harness.test.ts
@@ -0,0 +1,57 @@
+import { describe, expect, test, vi } from "vitest";
+import { renderHtml } from "@/components/survey-web-view";
+
+// The shared setup mocks `react-native` down to `Platform` only; this module also reaches for
+// view primitives and calls `StyleSheet.create` at import time, so widen the mock here.
+vi.mock("react-native", () => ({
+  Platform: { OS: "ios" },
+  KeyboardAvoidingView: () => null,
+  Linking: { openURL: vi.fn() },
+  Modal: () => null,
+  StyleSheet: { create: (styles: unknown) => styles },
+  View: () => null,
+}));
+
+const harness = (appUrl = "https://app.formbricks.com"): string =>
+  renderHtml({ appUrl, workspaceId: "ws-1" });
+
+describe("WebView harness", () => {
+  test("defines an onFinished bridge function", () => {
+    expect(harness()).toContain("function onFinished()");
+  });
+
+  test("posts the onFinished message back to the host", () => {
+    expect(harness()).toContain(
+      "window.ReactNativeWebView.postMessage(JSON.stringify({ onFinished: true }))",
+    );
+  });
+
+  /**
+   * Defining the function is not enough — the surveys library only calls it if it is handed in
+   * as a prop. Without this assertion the harness could define onFinished and never wire it up.
+   */
+  test("passes onFinished into renderSurvey's props", () => {
+    const html = harness();
+    const propsBlock = html.slice(
+      html.indexOf("const surveyProps = {"),
+      html.indexOf("window.formbricksSurveys.renderSurvey"),
+    );
+
+    expect(propsBlock).toContain("onFinished,");
+    // The other lifecycle props must survive alongside it.
+    expect(propsBlock).toContain("onDisplayCreated,");
+    expect(propsBlock).toContain("onResponseCreated,");
+    expect(propsBlock).toContain("onClose,");
+  });
+
+  test("still escapes < in the payload so survey content cannot break out of the script", () => {
+    const html = renderHtml({
+      appUrl: "https://app.formbricks.com",
+      workspaceId: "</script><script>alert(1)</script>",
+    });
+
+    expect(html).not.toContain("</script><script>alert(1)");
+    // Each "<" is emitted as the literal six-character sequence \u003c.
+    expect(html).toContain("\\u003c/script>");
+  });
+});
diff --git a/packages/react-native/src/lib/user/interaction-refresh.ts b/packages/react-native/src/lib/user/interaction-refresh.ts
new file mode 100644
index 0000000..ed41357
--- /dev/null
+++ b/packages/react-native/src/lib/user/interaction-refresh.ts
@@ -0,0 +1,45 @@
+import { Logger } from "@/lib/common/logger";
+import { UpdateQueue } from "@/lib/user/update-queue";
+import type { TSurvey } from "@/types/survey";
+
+const logger = Logger.getInstance();
+
+export type TInteractionSource = keyof NonNullable<
+  TSurvey["interactionRefresh"]
+>;
+
+/**
+ * Refresh server-computed segment membership after a survey interaction (display / response /
+ * finish).
+ *
+ * A `surveyInteraction` segment filter can change who a contact is the moment they interact with
+ * a survey (e.g. "have seen X", "have completed X"), so we pull fresh `segments` instead of
+ * waiting for the user-state TTL. But that refresh is a heavy `/user` recompute, so it is:
+ *   - Gated per survey and per event via `survey.interactionRefresh`: only interactions that can
+ *     actually change some live survey's membership trigger a refetch. A survey referenced only
+ *     by a "have seen" filter refreshes on display but not on response/finish, and a survey no
+ *     interaction filter references never refreshes.
+ *   - Routed through the UpdateQueue rather than a raw `sendUpdates`, so the display -> response
+ *     -> finish burst coalesces into a single debounced call.
+ *
+ * No-op for anonymous users (no `userId`) and when the interaction can't change membership.
+ */
+export const refreshSegmentsAfterInteraction = (
+  userId: string | null,
+  survey: TSurvey,
+  source: TInteractionSource,
+): void => {
+  if (!userId) return;
+
+  const shouldRefresh = survey.interactionRefresh?.[source] ?? false;
+  if (!shouldRefresh) return;
+
+  logger.debug(`Refreshing segments after ${source} on survey ${survey.id}`);
+
+  const updateQueue = UpdateQueue.getInstance();
+  updateQueue.updateUserId(userId);
+  // `processUpdates` rejects if the flush throws, and this is fire-and-forget — a bare
+  // `void` would leave that as an unhandled rejection. The queue already logs the real
+  // cause, so swallow it here rather than reporting it twice.
+  void updateQueue.processUpdates().catch(() => undefined);
+};
diff --git a/packages/react-native/src/lib/user/tests/interaction-refresh.test.ts b/packages/react-native/src/lib/user/tests/interaction-refresh.test.ts
new file mode 100644
index 0000000..fdd7403
--- /dev/null
+++ b/packages/react-native/src/lib/user/tests/interaction-refresh.test.ts
@@ -0,0 +1,158 @@
+import { beforeEach, describe, expect, test, vi } from "vitest";
+import { refreshSegmentsAfterInteraction } from "@/lib/user/interaction-refresh";
+import { UpdateQueue } from "@/lib/user/update-queue";
+import type { TSurvey } from "@/types/survey";
+
+const updateUserId = vi.fn();
+const processUpdates = vi.fn().mockResolvedValue(undefined);
+
+vi.mock("@/lib/user/update-queue", () => ({
+  UpdateQueue: {
+    getInstance: vi.fn(() => ({
+      updateUserId,
+      processUpdates,
+    })),
+  },
+}));
+
+const survey = (interactionRefresh?: TSurvey["interactionRefresh"]): TSurvey =>
+  ({
+    id: "survey-a",
+    interactionRefresh,
+  }) as unknown as TSurvey;
+
+describe("refreshSegmentsAfterInteraction", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    // The shared vitest setup calls `resetAllMocks`, which strips implementations — so the
+    // resolved value has to be re-established or `processUpdates()` returns undefined.
+    processUpdates.mockResolvedValue(undefined);
+  });
+
+  test("no-ops for an anonymous user even when the gate is open", () => {
+    refreshSegmentsAfterInteraction(
+      null,
+      survey({ onDisplay: true, onResponse: true, onFinished: true }),
+      "onDisplay",
+    );
+
+    expect(UpdateQueue.getInstance).not.toHaveBeenCalled();
+    expect(updateUserId).not.toHaveBeenCalled();
+    expect(processUpdates).not.toHaveBeenCalled();
+  });
+
+  test("no-ops when interactionRefresh is absent — the workspace has no interaction targeting", () => {
+    refreshSegmentsAfterInteraction("user-1", survey(undefined), "onDisplay");
+
+    expect(updateUserId).not.toHaveBeenCalled();
+    expect(processUpdates).not.toHaveBeenCalled();
+  });
+
+  test("no-ops when every flag is false — no interaction filter references this survey", () => {
+    refreshSegmentsAfterInteraction(
+      "user-1",
+      survey({ onDisplay: false, onResponse: false, onFinished: false }),
+      "onDisplay",
+    );
+
+    expect(updateUserId).not.toHaveBeenCalled();
+    expect(processUpdates).not.toHaveBeenCalled();
+  });
+
+  test("no-ops when the flag for a different source is set", () => {
+    refreshSegmentsAfterInteraction(
+      "user-1",
+      survey({ onDisplay: true, onResponse: false, onFinished: false }),
+      "onResponse",
+    );
+
+    expect(updateUserId).not.toHaveBeenCalled();
+    expect(processUpdates).not.toHaveBeenCalled();
+  });
+
+  test.each([
+    [
+      "onDisplay" as const,
+      { onDisplay: true, onResponse: false, onFinished: false },
+    ],
+    [
+      "onResponse" as const,
+      { onDisplay: false, onResponse: true, onFinished: false },
+    ],
+    [
+      "onFinished" as const,
+      { onDisplay: false, onResponse: false, onFinished: true },
+    ],
+  ])("refreshes for %s when its flag is set", (source, flags) => {
+    refreshSegmentsAfterInteraction("user-1", survey(flags), source);
+
+    expect(updateUserId).toHaveBeenCalledExactlyOnceWith("user-1");
+    expect(processUpdates).toHaveBeenCalledOnce();
+  });
+
+  test("a partial gate object treats missing flags as false", () => {
+    const partial = { onDisplay: true } as NonNullable<
+      TSurvey["interactionRefresh"]
+    >;
+
+    refreshSegmentsAfterInteraction("user-1", survey(partial), "onFinished");
+    expect(processUpdates).not.toHaveBeenCalled();
+
+    refreshSegmentsAfterInteraction("user-1", survey(partial), "onDisplay");
+    expect(processUpdates).toHaveBeenCalledOnce();
+  });
+
+  /**
+   * The flush is fire-and-forget, so a bare `void` would leave a rejection unhandled. Asserting
+   * that `.catch` is called is white-box, but Node only reports an unhandled rejection on a
+   * later tick, so watching `process.on("unhandledRejection")` here passes either way — it does
+   * not actually pin the behaviour.
+   */
+  test("attaches a rejection handler to the fire-and-forget flush", () => {
+    const catchSpy = vi.fn().mockReturnValue(undefined);
+    processUpdates.mockReturnValueOnce({
+      catch: catchSpy,
+    } as unknown as Promise<void>);
+
+    refreshSegmentsAfterInteraction(
+      "user-1",
+      survey({ onDisplay: true, onResponse: false, onFinished: false }),
+      "onDisplay",
+    );
+
+    expect(catchSpy).toHaveBeenCalledOnce();
+  });
+
+  test("a rejected flush never surfaces to the caller", async () => {
+    processUpdates.mockRejectedValueOnce(new Error("flush blew up"));
+
+    expect(() => {
+      refreshSegmentsAfterInteraction(
+        "user-1",
+        survey({ onDisplay: true, onResponse: false, onFinished: false }),
+        "onDisplay",
+      );
+    }).not.toThrow();
+
+    await Promise.resolve();
+    expect(processUpdates).toHaveBeenCalledOnce();
+  });
+
+  test("routes through the queue rather than sending directly, so a burst coalesces", () => {
+    const allOn = survey({
+      onDisplay: true,
+      onResponse: true,
+      onFinished: true,
+    });
+
+    refreshSegmentsAfterInteraction("user-1", allOn, "onDisplay");
+    refreshSegmentsAfterInteraction("user-1", allOn, "onResponse");
+    refreshSegmentsAfterInteraction("user-1", allOn, "onFinished");
+
+    // Three nudges, three queue pokes — the queue's own debounce is what collapses them into
+    // one request, which is covered by update-queue.test.ts.
+    expect(updateUserId).toHaveBeenCalledTimes(3);
+    expect(processUpdates).toHaveBeenCalledTimes(3);
+    expect(updateUserId).toHaveBeenLastCalledWith("user-1");
+  });
+});
diff --git a/packages/react-native/src/types/survey.ts b/packages/react-native/src/types/survey.ts
index 92eed8e..3f82dc0 100644
--- a/packages/react-native/src/types/survey.ts
+++ b/packages/react-native/src/types/survey.ts
@@ -313,4 +313,12 @@ export interface TSurvey {
     } | null;
     overwriteThemeStyling?: boolean | null;
   };
+  // Per-survey gate for the post-interaction segment refresh: whether an interaction with THIS
+  // survey (display / response / finish) can change any live survey's membership. Absent for
+  // workspaces without interaction targeting, where no refresh is ever needed.
+  interactionRefresh?: {
+    onDisplay: boolean;
+    onResponse: boolean;
+    onFinished: boolean;
+  };
 }
diff --git a/packages/react-native/vitest.setup.ts b/packages/react-native/vitest.setup.ts
index 4761029..bdfa06f 100644
--- a/packages/react-native/vitest.setup.ts
+++ b/packages/react-native/vitest.setup.ts
@@ -1,5 +1,8 @@
 import { afterEach, beforeEach, vi } from "vitest";
 
+// React Native injects `__DEV__` at build time; modules that branch on it need it defined here.
+vi.stubGlobal("__DEV__", false);
+
 beforeEach(() => {
   vi.resetModules();
   vi.resetAllMocks();