diff --git a/client/src/store/action-creators/app.ts b/client/src/store/action-creators/app.ts
new file mode 100644
index 0000000..6f1b505
--- /dev/null
+++ b/client/src/store/action-creators/app.ts
@@ -0,0 +1,170 @@
+import { ActionType } from '../action-types';
+import { Dispatch } from 'redux';
+import { ApiResponse, App, Config, NewApp } from '../../interfaces';
+import {
+  AddAppAction,
+  DeleteAppAction,
+  GetAppsAction,
+  PinAppAction,
+  ReorderAppsAction,
+  SortAppsAction,
+  UpdateAppAction,
+} from '../actions/app';
+import axios from 'axios';
+import { createNotification } from '.';
+
+export const getApps =
+  () => async (dispatch: Dispatch<GetAppsAction<undefined | App[]>>) => {
+    dispatch({
+      type: ActionType.getApps,
+      payload: undefined,
+    });
+
+    try {
+      const res = await axios.get<ApiResponse<App[]>>('/api/apps');
+
+      dispatch({
+        type: ActionType.getAppsSuccess,
+        payload: res.data.data,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const pinApp =
+  (app: App) => async (dispatch: Dispatch<PinAppAction>) => {
+    try {
+      const { id, isPinned, name } = app;
+      const res = await axios.put<ApiResponse<App>>(`/api/apps/${id}`, {
+        isPinned: !isPinned,
+      });
+
+      const status = isPinned
+        ? 'unpinned from Homescreen'
+        : 'pinned to Homescreen';
+
+      createNotification({
+        title: 'Success',
+        message: `App ${name} ${status}`,
+      });
+
+      dispatch({
+        type: ActionType.pinApp,
+        payload: res.data.data,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const addApp =
+  (formData: NewApp | FormData) => async (dispatch: Dispatch<AddAppAction>) => {
+    try {
+      const res = await axios.post<ApiResponse<App>>('/api/apps', formData);
+
+      createNotification({
+        title: 'Success',
+        message: `App added`,
+      });
+
+      await dispatch({
+        type: ActionType.addAppSuccess,
+        payload: res.data.data,
+      });
+
+      // Sort apps
+      // dispatch<any>(sortApps());
+      sortApps();
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const deleteApp =
+  (id: number) => async (dispatch: Dispatch<DeleteAppAction>) => {
+    try {
+      await axios.delete<ApiResponse<{}>>(`/api/apps/${id}`);
+
+      createNotification({
+        title: 'Success',
+        message: 'App deleted',
+      });
+
+      dispatch({
+        type: ActionType.deleteApp,
+        payload: id,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const updateApp =
+  (id: number, formData: NewApp | FormData) =>
+  async (dispatch: Dispatch<UpdateAppAction>) => {
+    try {
+      const res = await axios.put<ApiResponse<App>>(
+        `/api/apps/${id}`,
+        formData
+      );
+
+      createNotification({
+        title: 'Success',
+        message: `App updated`,
+      });
+
+      await dispatch({
+        type: ActionType.updateApp,
+        payload: res.data.data,
+      });
+
+      // Sort apps
+      dispatch<any>(sortApps());
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const reorderApps =
+  (apps: App[]) => async (dispatch: Dispatch<ReorderAppsAction>) => {
+    interface ReorderQuery {
+      apps: {
+        id: number;
+        orderId: number;
+      }[];
+    }
+
+    try {
+      const updateQuery: ReorderQuery = { apps: [] };
+
+      apps.forEach((app, index) =>
+        updateQuery.apps.push({
+          id: app.id,
+          orderId: index + 1,
+        })
+      );
+
+      await axios.put<ApiResponse<{}>>('/api/apps/0/reorder', updateQuery);
+
+      dispatch({
+        type: ActionType.reorderApps,
+        payload: apps,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const sortApps = () => async (dispatch: Dispatch<SortAppsAction>) => {
+  try {
+    const res = await axios.get<ApiResponse<Config>>('/api/config');
+
+    dispatch({
+      type: ActionType.sortApps,
+      payload: res.data.data.useOrdering,
+    });
+  } catch (err) {
+    console.log(err);
+  }
+};
diff --git a/client/src/store/action-creators/bookmark.ts b/client/src/store/action-creators/bookmark.ts
new file mode 100644
index 0000000..ac7c420
--- /dev/null
+++ b/client/src/store/action-creators/bookmark.ts
@@ -0,0 +1,289 @@
+import axios from 'axios';
+import { Dispatch } from 'redux';
+import { createNotification } from '.';
+import {
+  ApiResponse,
+  Bookmark,
+  Category,
+  Config,
+  NewBookmark,
+  NewCategory,
+} from '../../interfaces';
+import { ActionType } from '../action-types';
+import {
+  AddBookmarkAction,
+  AddCategoryAction,
+  DeleteBookmarkAction,
+  DeleteCategoryAction,
+  GetCategoriesAction,
+  PinCategoryAction,
+  ReorderCategoriesAction,
+  SortCategoriesAction,
+  UpdateBookmarkAction,
+  UpdateCategoryAction,
+} from '../actions/bookmark';
+
+export const getCategories =
+  () =>
+  async (dispatch: Dispatch<GetCategoriesAction<undefined | Category[]>>) => {
+    dispatch({
+      type: ActionType.getCategories,
+      payload: undefined,
+    });
+
+    try {
+      const res = await axios.get<ApiResponse<Category[]>>('/api/categories');
+
+      dispatch({
+        type: ActionType.getCategoriesSuccess,
+        payload: res.data.data,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const addCategory =
+  (formData: NewCategory) => async (dispatch: Dispatch<AddCategoryAction>) => {
+    try {
+      const res = await axios.post<ApiResponse<Category>>(
+        '/api/categories',
+        formData
+      );
+
+      createNotification({
+        title: 'Success',
+        message: `Category ${formData.name} created`,
+      });
+
+      dispatch({
+        type: ActionType.addCategory,
+        payload: res.data.data,
+      });
+
+      // dispatch<any>(sortCategories());
+      sortCategories();
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const addBookmark =
+  (formData: NewBookmark | FormData) =>
+  async (dispatch: Dispatch<AddBookmarkAction>) => {
+    try {
+      const res = await axios.post<ApiResponse<Bookmark>>(
+        '/api/bookmarks',
+        formData
+      );
+
+      createNotification({
+        title: 'Success',
+        message: `Bookmark created`,
+      });
+
+      dispatch({
+        type: ActionType.addBookmark,
+        payload: res.data.data,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const pinCategory =
+  (category: Category) => async (dispatch: Dispatch<PinCategoryAction>) => {
+    try {
+      const { id, isPinned, name } = category;
+      const res = await axios.put<ApiResponse<Category>>(
+        `/api/categories/${id}`,
+        { isPinned: !isPinned }
+      );
+
+      const status = isPinned
+        ? 'unpinned from Homescreen'
+        : 'pinned to Homescreen';
+
+      createNotification({
+        title: 'Success',
+        message: `Category ${name} ${status}`,
+      });
+
+      dispatch({
+        type: ActionType.pinCategory,
+        payload: res.data.data,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const deleteCategory =
+  (id: number) => async (dispatch: Dispatch<DeleteCategoryAction>) => {
+    try {
+      await axios.delete<ApiResponse<{}>>(`/api/categories/${id}`);
+
+      createNotification({
+        title: 'Success',
+        message: `Category deleted`,
+      });
+
+      dispatch({
+        type: ActionType.deleteCategory,
+        payload: id,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const updateCategory =
+  (id: number, formData: NewCategory) =>
+  async (dispatch: Dispatch<UpdateCategoryAction>) => {
+    try {
+      const res = await axios.put<ApiResponse<Category>>(
+        `/api/categories/${id}`,
+        formData
+      );
+      createNotification({
+        title: 'Success',
+        message: `Category ${formData.name} updated`,
+      });
+
+      dispatch({
+        type: ActionType.updateCategory,
+        payload: res.data.data,
+      });
+
+      // dispatch<any>(sortCategories());
+      sortCategories();
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const deleteBookmark =
+  (bookmarkId: number, categoryId: number) =>
+  async (dispatch: Dispatch<DeleteBookmarkAction>) => {
+    try {
+      await axios.delete<ApiResponse<{}>>(`/api/bookmarks/${bookmarkId}`);
+
+      createNotification({
+        title: 'Success',
+        message: 'Bookmark deleted',
+      });
+
+      dispatch({
+        type: ActionType.deleteBookmark,
+        payload: {
+          bookmarkId,
+          categoryId,
+        },
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const updateBookmark =
+  (
+    bookmarkId: number,
+    formData: NewBookmark | FormData,
+    category: {
+      prev: number;
+      curr: number;
+    }
+  ) =>
+  async (
+    dispatch: Dispatch<
+      DeleteBookmarkAction | AddBookmarkAction | UpdateBookmarkAction
+    >
+  ) => {
+    try {
+      const res = await axios.put<ApiResponse<Bookmark>>(
+        `/api/bookmarks/${bookmarkId}`,
+        formData
+      );
+
+      createNotification({
+        title: 'Success',
+        message: `Bookmark updated`,
+      });
+
+      // Check if category was changed
+      const categoryWasChanged = category.curr !== category.prev;
+
+      if (categoryWasChanged) {
+        // Delete bookmark from old category
+        dispatch({
+          type: ActionType.deleteBookmark,
+          payload: {
+            bookmarkId,
+            categoryId: category.prev,
+          },
+        });
+
+        // Add bookmark to the new category
+        dispatch({
+          type: ActionType.addBookmark,
+          payload: res.data.data,
+        });
+      } else {
+        // Else update only name/url/icon
+        dispatch({
+          type: ActionType.updateBookmark,
+          payload: res.data.data,
+        });
+      }
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const sortCategories =
+  () => async (dispatch: Dispatch<SortCategoriesAction>) => {
+    try {
+      const res = await axios.get<ApiResponse<Config>>('/api/config');
+
+      dispatch({
+        type: ActionType.sortCategories,
+        payload: res.data.data.useOrdering,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
+
+export const reorderCategories =
+  (categories: Category[]) =>
+  async (dispatch: Dispatch<ReorderCategoriesAction>) => {
+    interface ReorderQuery {
+      categories: {
+        id: number;
+        orderId: number;
+      }[];
+    }
+
+    try {
+      const updateQuery: ReorderQuery = { categories: [] };
+
+      categories.forEach((category, index) =>
+        updateQuery.categories.push({
+          id: category.id,
+          orderId: index + 1,
+        })
+      );
+
+      await axios.put<ApiResponse<{}>>(
+        '/api/categories/0/reorder',
+        updateQuery
+      );
+
+      dispatch({
+        type: ActionType.reorderCategories,
+        payload: categories,
+      });
+    } catch (err) {
+      console.log(err);
+    }
+  };
diff --git a/client/src/store/action-creators/index.ts b/client/src/store/action-creators/index.ts
index d7b5e45..ae038b0 100644
--- a/client/src/store/action-creators/index.ts
+++ b/client/src/store/action-creators/index.ts
@@ -1,3 +1,5 @@
 export * from './theme';
 export * from './config';
 export * from './notification';
+export * from './app';
+export * from './bookmark';
diff --git a/client/src/store/action-types/index.ts b/client/src/store/action-types/index.ts
index eb32118..ab7d5ef 100644
--- a/client/src/store/action-types/index.ts
+++ b/client/src/store/action-types/index.ts
@@ -4,6 +4,7 @@ export enum ActionType {
   // CONFIG
   getConfig = 'GET_CONFIG',
   updateConfig = 'UPDATE_CONFIG',
+  // QUERIES
   addQuery = 'ADD_QUERY',
   deleteQuery = 'DELETE_QUERY',
   fetchQueries = 'FETCH_QUERIES',
@@ -11,4 +12,29 @@ export enum ActionType {
   // NOTIFICATIONS
   createNotification = 'CREATE_NOTIFICATION',
   clearNotification = 'CLEAR_NOTIFICATION',
+  // APPS
+  getApps = 'GET_APPS',
+  getAppsSuccess = 'GET_APPS_SUCCESS',
+  getAppsError = 'GET_APPS_ERROR',
+  pinApp = 'PIN_APP',
+  addApp = 'ADD_APP',
+  addAppSuccess = 'ADD_APP_SUCCESS',
+  deleteApp = 'DELETE_APP',
+  updateApp = 'UPDATE_APP',
+  reorderApps = 'REORDER_APPS',
+  sortApps = 'SORT_APPS',
+  // CATEGORES
+  getCategories = 'GET_CATEGORIES',
+  getCategoriesSuccess = 'GET_CATEGORIES_SUCCESS',
+  getCategoriesError = 'GET_CATEGORIES_ERROR',
+  addCategory = 'ADD_CATEGORY',
+  pinCategory = 'PIN_CATEGORY',
+  deleteCategory = 'DELETE_CATEGORY',
+  updateCategory = 'UPDATE_CATEGORY',
+  sortCategories = 'SORT_CATEGORIES',
+  reorderCategories = 'REORDER_CATEGORIES',
+  // BOOKMARKS
+  addBookmark = 'ADD_BOOKMARK',
+  deleteBookmark = 'DELETE_BOOKMARK',
+  updateBookmark = 'UPDATE_BOOKMARK',
 }
diff --git a/client/src/store/actions/app.ts b/client/src/store/actions/app.ts
new file mode 100644
index 0000000..37f5419
--- /dev/null
+++ b/client/src/store/actions/app.ts
@@ -0,0 +1,38 @@
+import { ActionType } from '../action-types';
+import { App } from '../../interfaces';
+
+export interface GetAppsAction<T> {
+  type:
+    | ActionType.getApps
+    | ActionType.getAppsSuccess
+    | ActionType.getAppsError;
+  payload: T;
+}
+export interface PinAppAction {
+  type: ActionType.pinApp;
+  payload: App;
+}
+
+export interface AddAppAction {
+  type: ActionType.addAppSuccess;
+  payload: App;
+}
+export interface DeleteAppAction {
+  type: ActionType.deleteApp;
+  payload: number;
+}
+
+export interface UpdateAppAction {
+  type: ActionType.updateApp;
+  payload: App;
+}
+
+export interface ReorderAppsAction {
+  type: ActionType.reorderApps;
+  payload: App[];
+}
+
+export interface SortAppsAction {
+  type: ActionType.sortApps;
+  payload: string;
+}
diff --git a/client/src/store/actions/bookmark.ts b/client/src/store/actions/bookmark.ts
new file mode 100644
index 0000000..e4cfcfd
--- /dev/null
+++ b/client/src/store/actions/bookmark.ts
@@ -0,0 +1,58 @@
+import { Bookmark, Category } from '../../interfaces';
+import { ActionType } from '../action-types';
+
+export interface GetCategoriesAction<T> {
+  type:
+    | ActionType.getCategories
+    | ActionType.getCategoriesSuccess
+    | ActionType.getCategoriesError;
+  payload: T;
+}
+
+export interface AddCategoryAction {
+  type: ActionType.addCategory;
+  payload: Category;
+}
+
+export interface AddBookmarkAction {
+  type: ActionType.addBookmark;
+  payload: Bookmark;
+}
+
+export interface PinCategoryAction {
+  type: ActionType.pinCategory;
+  payload: Category;
+}
+
+export interface DeleteCategoryAction {
+  type: ActionType.deleteCategory;
+  payload: number;
+}
+
+export interface UpdateCategoryAction {
+  type: ActionType.updateCategory;
+  payload: Category;
+}
+
+export interface DeleteBookmarkAction {
+  type: ActionType.deleteBookmark;
+  payload: {
+    bookmarkId: number;
+    categoryId: number;
+  };
+}
+
+export interface UpdateBookmarkAction {
+  type: ActionType.updateBookmark;
+  payload: Bookmark;
+}
+
+export interface SortCategoriesAction {
+  type: ActionType.sortCategories;
+  payload: string;
+}
+
+export interface ReorderCategoriesAction {
+  type: ActionType.reorderCategories;
+  payload: Category[];
+}
diff --git a/client/src/store/actions/index.ts b/client/src/store/actions/index.ts
index d6bea13..af999a6 100644
--- a/client/src/store/actions/index.ts
+++ b/client/src/store/actions/index.ts
@@ -1,4 +1,5 @@
 import { SetThemeAction } from './theme';
+
 import {
   AddQueryAction,
   DeleteQueryAction,
@@ -7,11 +8,37 @@ import {
   UpdateConfigAction,
   UpdateQueryAction,
 } from './config';
+
 import {
   ClearNotificationAction,
   CreateNotificationAction,
 } from './notification';
 
+import {
+  GetAppsAction,
+  PinAppAction,
+  AddAppAction,
+  DeleteAppAction,
+  UpdateAppAction,
+  ReorderAppsAction,
+  SortAppsAction,
+} from './app';
+
+import { App } from '../../interfaces';
+
+import {
+  GetCategoriesAction,
+  AddCategoryAction,
+  PinCategoryAction,
+  DeleteCategoryAction,
+  UpdateCategoryAction,
+  SortCategoriesAction,
+  ReorderCategoriesAction,
+  AddBookmarkAction,
+  DeleteBookmarkAction,
+  UpdateBookmarkAction,
+} from './bookmark';
+
 export type Action =
   // Theme
   | SetThemeAction
@@ -24,4 +51,24 @@ export type Action =
   | UpdateQueryAction
   // Notifications
   | CreateNotificationAction
-  | ClearNotificationAction;
+  | ClearNotificationAction
+  // Apps
+  | GetAppsAction<undefined | App[]>
+  | PinAppAction
+  | AddAppAction
+  | DeleteAppAction
+  | UpdateAppAction
+  | ReorderAppsAction
+  | SortAppsAction
+  // Categories
+  | GetCategoriesAction<any>
+  | AddCategoryAction
+  | PinCategoryAction
+  | DeleteCategoryAction
+  | UpdateCategoryAction
+  | SortCategoriesAction
+  | ReorderCategoriesAction
+  // Bookmarks
+  | AddBookmarkAction
+  | DeleteBookmarkAction
+  | UpdateBookmarkAction;
diff --git a/client/src/store/reducers/app.ts b/client/src/store/reducers/app.ts
new file mode 100644
index 0000000..e6da902
--- /dev/null
+++ b/client/src/store/reducers/app.ts
@@ -0,0 +1,92 @@
+import { ActionType } from '../action-types';
+import { Action } from '../actions/index';
+import { App } from '../../interfaces';
+import { sortData } from '../../utility';
+
+interface AppsState {
+  loading: boolean;
+  apps: App[];
+  errors: string | undefined;
+}
+
+const initialState: AppsState = {
+  loading: true,
+  apps: [],
+  errors: undefined,
+};
+
+export const appsReducer = (
+  state: AppsState = initialState,
+  action: Action
+): AppsState => {
+  switch (action.type) {
+    case ActionType.getApps:
+      return {
+        ...state,
+        loading: true,
+        errors: undefined,
+      };
+
+    case ActionType.getAppsSuccess:
+      return {
+        ...state,
+        loading: false,
+        apps: action.payload || [],
+      };
+
+    case ActionType.pinApp:
+      const pinnedAppIdx = state.apps.findIndex(
+        (app) => app.id === action.payload.id
+      );
+
+      return {
+        ...state,
+        apps: [
+          ...state.apps.slice(0, pinnedAppIdx),
+          action.payload,
+          ...state.apps.slice(pinnedAppIdx + 1),
+        ],
+      };
+
+    case ActionType.addAppSuccess:
+      return {
+        ...state,
+        apps: [...state.apps, action.payload],
+      };
+
+    case ActionType.deleteApp:
+      return {
+        ...state,
+        apps: [...state.apps].filter((app) => app.id !== action.payload),
+      };
+
+    case ActionType.updateApp:
+      const updatedAppIdx = state.apps.findIndex(
+        (app) => app.id === action.payload.id
+      );
+
+      return {
+        ...state,
+        apps: [
+          ...state.apps.slice(0, updatedAppIdx),
+          action.payload,
+          ...state.apps.slice(updatedAppIdx + 1),
+        ],
+      };
+
+    case ActionType.reorderApps:
+      return {
+        ...state,
+        apps: action.payload,
+      };
+
+    case ActionType.sortApps:
+      return {
+        ...state,
+        apps: sortData<App>(state.apps, action.payload),
+      };
+
+    default:
+      return state;
+  }
+};
diff --git a/client/src/store/reducers/bookmark.ts b/client/src/store/reducers/bookmark.ts
new file mode 100644
index 0000000..ed4cea2
--- /dev/null
+++ b/client/src/store/reducers/bookmark.ts
@@ -0,0 +1,166 @@
+import { Category } from '../../interfaces';
+import { sortData } from '../../utility';
+import { ActionType } from '../action-types';
+import { Action } from '../actions';
+
+interface BookmarksState {
+  loading: boolean;
+  errors: string | undefined;
+  categories: Category[];
+}
+
+const initialState: BookmarksState = {
+  loading: true,
+  errors: undefined,
+  categories: [],
+};
+
+export const bookmarksReducer = (
+  state: BookmarksState = initialState,
+  action: Action
+): BookmarksState => {
+  switch (action.type) {
+    case ActionType.getCategories:
+      return {
+        ...state,
+        loading: true,
+        errors: undefined,
+      };
+
+    case ActionType.getCategoriesSuccess:
+      return {
+        ...state,
+        loading: false,
+        categories: action.payload,
+      };
+
+    case ActionType.addCategory:
+      return {
+        ...state,
+        categories: [...state.categories, { ...action.payload, bookmarks: [] }],
+      };
+
+    case ActionType.addBookmark:
+      const categoryIdx = state.categories.findIndex(
+        (category) => category.id === action.payload.categoryId
+      );
+
+      return {
+        ...state,
+        categories: [
+          ...state.categories.slice(0, categoryIdx),
+          {
+            ...state.categories[categoryIdx],
+            bookmarks: [
+              ...state.categories[categoryIdx].bookmarks,
+              action.payload,
+            ],
+          },
+          ...state.categories.slice(categoryIdx + 1),
+        ],
+      };
+
+    case ActionType.pinCategory:
+      const pinnedCategoryIdx = state.categories.findIndex(
+        (category) => category.id === action.payload.id
+      );
+
+      return {
+        ...state,
+        categories: [
+          ...state.categories.slice(0, pinnedCategoryIdx),
+          action.payload,
+          ...state.categories.slice(pinnedCategoryIdx + 1),
+        ],
+      };
+
+    case ActionType.deleteCategory:
+      const deletedCategoryIdx = state.categories.findIndex(
+        (category) => category.id === action.payload
+      );
+
+      return {
+        ...state,
+        categories: [
+          ...state.categories.slice(0, deletedCategoryIdx),
+          ...state.categories.slice(deletedCategoryIdx + 1),
+        ],
+      };
+
+    case ActionType.updateCategory:
+      const updatedCategoryIdx = state.categories.findIndex(
+        (category) => category.id === action.payload.id
+      );
+
+      return {
+        ...state,
+        categories: [
+          ...state.categories.slice(0, updatedCategoryIdx),
+          action.payload,
+          ...state.categories.slice(updatedCategoryIdx + 1),
+        ],
+      };
+
+    case ActionType.deleteBookmark:
+      const categoryInUpdateIdx = state.categories.findIndex(
+        (category) => category.id === action.payload.categoryId
+      );
+
+      return {
+        ...state,
+        categories: [
+          ...state.categories.slice(0, categoryInUpdateIdx),
+          {
+            ...state.categories[categoryInUpdateIdx],
+            bookmarks: state.categories[categoryInUpdateIdx].bookmarks.filter(
+              (bookmark) => bookmark.id !== action.payload.bookmarkId
+            ),
+          },
+          ...state.categories.slice(categoryInUpdateIdx + 1),
+        ],
+      };
+
+    case ActionType.updateBookmark:
+      const parentCategoryIdx = state.categories.findIndex(
+        (category) => category.id === action.payload.categoryId
+      );
+      const updatedBookmarkIdx = state.categories[
+        parentCategoryIdx
+      ].bookmarks.findIndex((bookmark) => bookmark.id === action.payload.id);
+
+      return {
+        ...state,
+        categories: [
+          ...state.categories.slice(0, parentCategoryIdx),
+          {
+            ...state.categories[parentCategoryIdx],
+            bookmarks: [
+              ...state.categories[parentCategoryIdx].bookmarks.slice(
+                0,
+                updatedBookmarkIdx
+              ),
+              action.payload,
+              ...state.categories[parentCategoryIdx].bookmarks.slice(
+                updatedBookmarkIdx + 1
+              ),
+            ],
+          },
+          ...state.categories.slice(parentCategoryIdx + 1),
+        ],
+      };
+
+    case ActionType.sortCategories:
+      return {
+        ...state,
+        categories: sortData<Category>(state.categories, action.payload),
+      };
+
+    case ActionType.reorderCategories:
+      return {
+        ...state,
+        categories: action.payload,
+      };
+    default:
+      return state;
+  }
+};
diff --git a/client/src/store/reducers/index.ts b/client/src/store/reducers/index.ts
index f30ccd8..1eed183 100644
--- a/client/src/store/reducers/index.ts
+++ b/client/src/store/reducers/index.ts
@@ -3,11 +3,15 @@ import { combineReducers } from 'redux';
 import { themeReducer } from './theme';
 import { configReducer } from './config';
 import { notificationReducer } from './notification';
+import { appsReducer } from './app';
+import { bookmarksReducer } from './bookmark';
 
 export const reducers = combineReducers({
   theme: themeReducer,
   config: configReducer,
   notification: notificationReducer,
+  apps: appsReducer,
+  bookmarks: bookmarksReducer,
 });
 
 export type State = ReturnType<typeof reducers>;