diff --git a/apps/mobile/jest.setup.js b/apps/mobile/jest.setup.js
index f76afc3..fe9d681 100644
--- a/apps/mobile/jest.setup.js
+++ b/apps/mobile/jest.setup.js
@@ -1,11 +1,19 @@
-import 'react-native-gesture-handler/jestSetup'
+try {
+  require("react-native-gesture-handler/jestSetup");
+} catch {
+  // Package may be absent in minimal test environments
+}
 
-jest.mock('react-native-reanimated', () => {
-  const Reanimated = require('react-native-reanimated/mock')
-  Reanimated.default.call = () => {}
-  return Reanimated
-})
+jest.mock(
+  "react-native-reanimated",
+  () => {
+    const Reanimated = require("react-native-reanimated/mock");
+    Reanimated.default.call = () => {};
+    return Reanimated;
+  },
+  { virtual: true },
+);
 
-jest.mock('@expo/vector-icons', () => ({
-  Ionicons: 'Ionicons',
-}))
\ No newline at end of file
+jest.mock("@expo/vector-icons", () => ({
+  Ionicons: "Ionicons",
+}));
diff --git a/apps/mobile/src/api/__tests__/gyms.test.ts b/apps/mobile/src/api/__tests__/gyms.test.ts
new file mode 100644
index 0000000..44b23f0
--- /dev/null
+++ b/apps/mobile/src/api/__tests__/gyms.test.ts
@@ -0,0 +1,55 @@
+import { beforeEach, describe, expect, it, jest } from "@jest/globals";
+import { gymsApi } from "../gyms";
+import { apiClient, withAuth } from "../client";
+
+jest.mock("../client", () => ({
+  apiClient: {
+    get: jest.fn(),
+    patch: jest.fn(),
+  },
+  withAuth: jest.fn((token?: string | null) =>
+    token ? { headers: { Authorization: `Bearer ${token}` } } : {},
+  ),
+}));
+
+describe("gymsApi", () => {
+  const getMock = apiClient.get as any;
+  const patchMock = apiClient.patch as any;
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it("returns array payload from getGyms", async () => {
+    getMock.mockResolvedValue({
+      data: [{ id: "gym_1", name: "Gym One" }],
+    });
+
+    const result = await gymsApi.getGyms("token_1");
+
+    expect(result).toEqual([{ id: "gym_1", name: "Gym One" }]);
+    expect(withAuth).toHaveBeenCalledWith("token_1");
+  });
+
+  it("returns nested data payload from getGyms", async () => {
+    getMock.mockResolvedValue({
+      data: { data: [{ id: "gym_2", name: "Gym Two" }] },
+    });
+
+    const result = await gymsApi.getGyms(null);
+
+    expect(result).toEqual([{ id: "gym_2", name: "Gym Two" }]);
+  });
+
+  it("patches selected gym for current user", async () => {
+    patchMock.mockResolvedValue({});
+
+    await gymsApi.updateUserGym("gym_2", "token_2");
+
+    expect(apiClient.patch).toHaveBeenCalledWith(
+      "/api/users/gym",
+      { gymId: "gym_2" },
+      expect.any(Object),
+    );
+  });
+});
diff --git a/apps/mobile/src/api/__tests__/recommendations.test.ts b/apps/mobile/src/api/__tests__/recommendations.test.ts
new file mode 100644
index 0000000..f1cd079
--- /dev/null
+++ b/apps/mobile/src/api/__tests__/recommendations.test.ts
@@ -0,0 +1,68 @@
+import { beforeEach, describe, expect, it, jest } from "@jest/globals";
+import {
+  approveRecommendation,
+  generateRecommendation,
+  getRecommendations,
+} from "../recommendations";
+import { apiClient, withAuth } from "../client";
+
+jest.mock("../client", () => ({
+  apiClient: {
+    get: jest.fn(),
+    post: jest.fn(),
+  },
+  withAuth: jest.fn((token?: string | null) =>
+    token ? { headers: { Authorization: `Bearer ${token}` } } : {},
+  ),
+}));
+
+describe("recommendations api", () => {
+  const getMock = apiClient.get as any;
+  const postMock = apiClient.post as any;
+
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  it("returns normalized list from standardized response", async () => {
+    getMock.mockResolvedValue({
+      data: {
+        success: true,
+        data: [{ id: "rec_1", status: "pending" }],
+      },
+    });
+
+    const result = await getRecommendations("user_1", "token_1");
+
+    expect(result).toEqual([{ id: "rec_1", status: "pending" }]);
+    expect(withAuth).toHaveBeenCalledWith("token_1");
+  });
+
+  it("falls back to legacy response for generate", async () => {
+    postMock.mockResolvedValue({
+      data: { id: "rec_2", status: "pending" },
+    });
+
+    const result = await generateRecommendation({ userId: "user_1" }, null);
+
+    expect(result).toEqual({ id: "rec_2", status: "pending" });
+  });
+
+  it("sends approval payload without approvedBy", async () => {
+    postMock.mockResolvedValue({
+      data: {
+        success: true,
+        data: { id: "rec_3", status: "approved" },
+      },
+    });
+
+    const result = await approveRecommendation("rec_3", "token_3");
+
+    expect(result).toEqual({ id: "rec_3", status: "approved" });
+    expect(apiClient.post).toHaveBeenCalledWith(
+      "/api/recommendations/approve",
+      { recommendationId: "rec_3", status: "approved" },
+      expect.any(Object),
+    );
+  });
+});