diff --git a/src/backend/accounts/bookmarks.ts b/src/backend/accounts/bookmarks.ts
index c83a366c..84f8a459 100644
--- a/src/backend/accounts/bookmarks.ts
+++ b/src/backend/accounts/bookmarks.ts
@@ -3,13 +3,33 @@ import { ofetch } from "ofetch";
 import { getAuthHeaders } from "@/backend/accounts/auth";
 import { BookmarkResponse } from "@/backend/accounts/user";
 import { AccountWithToken } from "@/stores/auth";
+import { BookmarkMediaItem } from "@/stores/bookmarks";
 
-export interface BookmarkInput {
+export interface BookmarkMetaInput {
   title: string;
   year: number;
   poster?: string;
   type: string;
+}
+
+export interface BookmarkInput {
   tmdbId: string;
+  meta: BookmarkMetaInput;
+}
+
+export function bookmarkMediaToInput(
+  tmdbId: string,
+  item: BookmarkMediaItem
+): BookmarkInput {
+  return {
+    meta: {
+      title: item.title,
+      type: item.type,
+      poster: item.poster,
+      year: item.year ?? 0,
+    },
+    tmdbId,
+  };
 }
 
 export async function addBookmark(
@@ -23,10 +43,7 @@ export async function addBookmark(
       method: "POST",
       headers: getAuthHeaders(account.token),
       baseURL: url,
-      body: {
-        meta: input,
-        tmdbId: input.tmdbId,
-      },
+      body: input,
     }
   );
 }
diff --git a/src/backend/accounts/import.ts b/src/backend/accounts/import.ts
new file mode 100644
index 00000000..c09123cb
--- /dev/null
+++ b/src/backend/accounts/import.ts
@@ -0,0 +1,33 @@
+import { ofetch } from "ofetch";
+
+import { getAuthHeaders } from "@/backend/accounts/auth";
+import { AccountWithToken } from "@/stores/auth";
+
+import { BookmarkInput } from "./bookmarks";
+import { ProgressInput } from "./progress";
+
+export function importProgress(
+  url: string,
+  account: AccountWithToken,
+  progressItems: ProgressInput[]
+) {
+  return ofetch<void>(`/users/${account.userId}/progress/import`, {
+    method: "PUT",
+    body: progressItems,
+    baseURL: url,
+    headers: getAuthHeaders(account.token),
+  });
+}
+
+export function importBookmarks(
+  url: string,
+  account: AccountWithToken,
+  bookmarks: BookmarkInput[]
+) {
+  return ofetch<void>(`/users/${account.userId}/bookmarks`, {
+    method: "PUT",
+    body: bookmarks,
+    baseURL: url,
+    headers: getAuthHeaders(account.token),
+  });
+}
diff --git a/src/backend/accounts/progress.ts b/src/backend/accounts/progress.ts
index a05ed517..a5ad5022 100644
--- a/src/backend/accounts/progress.ts
+++ b/src/backend/accounts/progress.ts
@@ -3,6 +3,7 @@ import { ofetch } from "ofetch";
 import { getAuthHeaders } from "@/backend/accounts/auth";
 import { ProgressResponse } from "@/backend/accounts/user";
 import { AccountWithToken } from "@/stores/auth";
+import { ProgressMediaItem, ProgressUpdateItem } from "@/stores/progress";
 
 export interface ProgressInput {
   meta?: {
@@ -12,14 +13,70 @@ export interface ProgressInput {
     type: string;
   };
   tmdbId: string;
-  watched?: number;
-  duration?: number;
+  watched: number;
+  duration: number;
   seasonId?: string;
   episodeId?: string;
   seasonNumber?: number;
   episodeNumber?: number;
 }
 
+export function progressUpdateItemToInput(
+  item: ProgressUpdateItem
+): ProgressInput {
+  return {
+    duration: item.progress?.duration ?? 0,
+    watched: item.progress?.watched ?? 0,
+    tmdbId: item.tmdbId,
+    meta: {
+      title: item.title ?? "",
+      type: item.type ?? "",
+      year: item.year ?? NaN,
+      poster: item.poster,
+    },
+    episodeId: item.episodeId,
+    seasonId: item.seasonId,
+    episodeNumber: item.episodeNumber,
+    seasonNumber: item.seasonNumber,
+  };
+}
+
+export function progressMediaItemToInputs(
+  tmdbId: string,
+  item: ProgressMediaItem
+): ProgressInput[] {
+  if (item.type === "show") {
+    return Object.entries(item.episodes).flatMap(([_, episode]) => ({
+      duration: item.progress?.duration ?? episode.progress.duration,
+      watched: item.progress?.watched ?? episode.progress.watched,
+      tmdbId,
+      meta: {
+        title: item.title ?? "",
+        type: item.type ?? "",
+        year: item.year ?? NaN,
+        poster: item.poster,
+      },
+      episodeId: episode.id,
+      seasonId: episode.seasonId,
+      episodeNumber: episode.number,
+      seasonNumber: item.seasons[episode.seasonId].number,
+    }));
+  }
+  return [
+    {
+      duration: item.progress?.duration ?? 0,
+      watched: item.progress?.watched ?? 0,
+      tmdbId,
+      meta: {
+        title: item.title ?? "",
+        type: item.type ?? "",
+        year: item.year ?? NaN,
+        poster: item.poster,
+      },
+    },
+  ];
+}
+
 export async function setProgress(
   url: string,
   account: AccountWithToken,
diff --git a/src/backend/accounts/settings.ts b/src/backend/accounts/settings.ts
new file mode 100644
index 00000000..09405a40
--- /dev/null
+++ b/src/backend/accounts/settings.ts
@@ -0,0 +1,37 @@
+import { ofetch } from "ofetch";
+
+import { getAuthHeaders } from "@/backend/accounts/auth";
+import { AccountWithToken } from "@/stores/auth";
+
+export interface SettingsInput {
+  applicationLanguage?: string;
+  applicationTheme?: string;
+  defaultSubtitleLanguage?: string;
+}
+
+export interface SettingsResponse {
+  applicationTheme?: string | null;
+  applicationLanguage?: string | null;
+  defaultSubtitleLanguage?: string | null;
+}
+
+export function updateSettings(
+  url: string,
+  account: AccountWithToken,
+  settings: SettingsInput
+) {
+  return ofetch<SettingsResponse>(`/users/${account.userId}/settings`, {
+    method: "PUT",
+    body: settings,
+    baseURL: url,
+    headers: getAuthHeaders(account.token),
+  });
+}
+
+export function getSettings(url: string, account: AccountWithToken) {
+  return ofetch<SettingsResponse>(`/users/${account.userId}/settings`, {
+    method: "GET",
+    baseURL: url,
+    headers: getAuthHeaders(account.token),
+  });
+}
diff --git a/src/hooks/auth/useAuth.ts b/src/hooks/auth/useAuth.ts
index 5f455545..ddc44a2a 100644
--- a/src/hooks/auth/useAuth.ts
+++ b/src/hooks/auth/useAuth.ts
@@ -1,5 +1,6 @@
 import { useCallback } from "react";
 
+import { bookmarkMediaToInput } from "@/backend/accounts/bookmarks";
 import {
   bytesToBase64,
   bytesToBase64Url,
@@ -7,7 +8,9 @@ import {
   keysFromMnemonic,
   signChallenge,
 } from "@/backend/accounts/crypto";
+import { importBookmarks, importProgress } from "@/backend/accounts/import";
 import { getLoginChallengeToken, loginAccount } from "@/backend/accounts/login";
+import { progressMediaItemToInputs } from "@/backend/accounts/progress";
 import {
   getRegisterChallengeToken,
   registerAccount,
@@ -16,7 +19,9 @@ import { removeSession } from "@/backend/accounts/sessions";
 import { getBookmarks, getProgress, getUser } from "@/backend/accounts/user";
 import { useAuthData } from "@/hooks/auth/useAuthData";
 import { useBackendUrl } from "@/hooks/auth/useBackendUrl";
-import { useAuthStore } from "@/stores/auth";
+import { AccountWithToken, useAuthStore } from "@/stores/auth";
+import { BookmarkMediaItem } from "@/stores/bookmarks";
+import { ProgressMediaItem } from "@/stores/progress";
 
 export interface RegistrationData {
   recaptchaToken?: string;
@@ -69,7 +74,7 @@ export function useAuth() {
 
       const user = await getUser(backendUrl, loginResult.token);
       const seedBase64 = bytesToBase64(keys.seed);
-      await userDataLogin(loginResult, user.user, user.session, seedBase64);
+      return userDataLogin(loginResult, user.user, user.session, seedBase64);
     },
     [userDataLogin, backendUrl]
   );
@@ -106,7 +111,7 @@ export function useAuth() {
         profile: registerData.userData.profile,
       });
 
-      await userDataLogin(
+      return userDataLogin(
         registerResult,
         registerResult.user,
         registerResult.session,
@@ -116,6 +121,33 @@ export function useAuth() {
     [backendUrl, userDataLogin]
   );
 
+  const importData = useCallback(
+    async (
+      account: AccountWithToken,
+      progressItems: Record<string, ProgressMediaItem>,
+      bookmarks: Record<string, BookmarkMediaItem>
+    ) => {
+      if (
+        Object.keys(progressItems).length === 0 &&
+        Object.keys(bookmarks).length === 0
+      ) {
+        return;
+      }
+
+      const progressInputs = Object.entries(progressItems).flatMap(
+        ([tmdbId, item]) => progressMediaItemToInputs(tmdbId, item)
+      );
+
+      const bookmarkInputs = Object.entries(bookmarks).map(([tmdbId, item]) =>
+        bookmarkMediaToInput(tmdbId, item)
+      );
+
+      await importProgress(backendUrl, account, progressInputs);
+      await importBookmarks(backendUrl, account, bookmarkInputs);
+    },
+    [backendUrl]
+  );
+
   const restore = useCallback(async () => {
     if (!currentAccount) {
       return;
@@ -136,5 +168,6 @@ export function useAuth() {
     logout,
     register,
     restore,
+    importData,
   };
 }
diff --git a/src/hooks/auth/useAuthData.ts b/src/hooks/auth/useAuthData.ts
index 39c64220..9fef5839 100644
--- a/src/hooks/auth/useAuthData.ts
+++ b/src/hooks/auth/useAuthData.ts
@@ -24,19 +24,21 @@ export function useAuthData() {
 
   const login = useCallback(
     async (
-      account: LoginResponse,
+      loginResponse: LoginResponse,
       user: UserResponse,
       session: SessionResponse,
       seed: string
     ) => {
-      setAccount({
-        token: account.token,
+      const account = {
+        token: loginResponse.token,
         userId: user.id,
-        sessionId: account.session.id,
+        sessionId: loginResponse.session.id,
         deviceName: session.device,
         profile: user.profile,
         seed,
-      });
+      };
+      setAccount(account);
+      return account;
     },
     [setAccount]
   );
diff --git a/src/pages/parts/auth/LoginFormPart.tsx b/src/pages/parts/auth/LoginFormPart.tsx
index e9c4fc5d..e3ad71d2 100644
--- a/src/pages/parts/auth/LoginFormPart.tsx
+++ b/src/pages/parts/auth/LoginFormPart.tsx
@@ -11,6 +11,8 @@ import {
 } from "@/components/layout/LargeCard";
 import { AuthInputBox } from "@/components/text-inputs/AuthInputBox";
 import { useAuth } from "@/hooks/auth/useAuth";
+import { useBookmarkStore } from "@/stores/bookmarks";
+import { useProgressStore } from "@/stores/progress";
 
 interface LoginFormPartProps {
   onLogin?: () => void;
@@ -19,7 +21,9 @@ interface LoginFormPartProps {
 export function LoginFormPart(props: LoginFormPartProps) {
   const [mnemonic, setMnemonic] = useState("");
   const [device, setDevice] = useState("");
-  const { login, restore } = useAuth();
+  const { login, restore, importData } = useAuth();
+  const progressItems = useProgressStore((store) => store.items);
+  const bookmarkItems = useBookmarkStore((store) => store.bookmarks);
 
   const [result, execute] = useAsyncFn(
     async (inputMnemonic: string, inputdevice: string) => {
@@ -27,14 +31,14 @@ export function LoginFormPart(props: LoginFormPartProps) {
       if (!verifyValidMnemonic(inputMnemonic))
         throw new Error("Invalid or incomplete passphrase");
 
-      await login({
+      const account = await login({
         mnemonic: inputMnemonic,
         userData: {
           device: inputdevice,
         },
       });
 
-      // TODO import (and sort out conflicts)
+      await importData(account, progressItems, bookmarkItems);
 
       await restore();
 
diff --git a/src/pages/parts/auth/VerifyPassphrasePart.tsx b/src/pages/parts/auth/VerifyPassphrasePart.tsx
index 2506807a..6c32612a 100644
--- a/src/pages/parts/auth/VerifyPassphrasePart.tsx
+++ b/src/pages/parts/auth/VerifyPassphrasePart.tsx
@@ -2,6 +2,7 @@ import { useState } from "react";
 import { useGoogleReCaptcha } from "react-google-recaptcha-v3";
 import { useAsyncFn } from "react-use";
 
+import { updateSettings } from "@/backend/accounts/settings";
 import { Button } from "@/components/Button";
 import { Icon, Icons } from "@/components/Icon";
 import {
@@ -11,7 +12,13 @@ import {
 } from "@/components/layout/LargeCard";
 import { AuthInputBox } from "@/components/text-inputs/AuthInputBox";
 import { useAuth } from "@/hooks/auth/useAuth";
+import { useBackendUrl } from "@/hooks/auth/useBackendUrl";
 import { AccountProfile } from "@/pages/parts/auth/AccountCreatePart";
+import { useBookmarkStore } from "@/stores/bookmarks";
+import { useLanguageStore } from "@/stores/language";
+import { useProgressStore } from "@/stores/progress";
+import { useSubtitleStore } from "@/stores/subtitles";
+import { useThemeStore } from "@/stores/theme";
 
 interface VerifyPassphraseProps {
   mnemonic: string | null;
@@ -22,7 +29,17 @@ interface VerifyPassphraseProps {
 
 export function VerifyPassphrase(props: VerifyPassphraseProps) {
   const [mnemonic, setMnemonic] = useState("");
-  const { register, restore } = useAuth();
+  const { register, restore, importData } = useAuth();
+  const progressItems = useProgressStore((store) => store.items);
+  const bookmarkItems = useBookmarkStore((store) => store.bookmarks);
+
+  const applicationLanguage = useLanguageStore((store) => store.language);
+  const defaultSubtitleLanguage = useSubtitleStore(
+    (store) => store.lastSelectedLanguage
+  );
+  const applicationTheme = useThemeStore((store) => store.theme);
+
+  const backendUrl = useBackendUrl();
 
   const { executeRecaptcha } = useGoogleReCaptcha();
 
@@ -42,13 +59,19 @@ export function VerifyPassphrase(props: VerifyPassphraseProps) {
       if (inputMnemonic !== props.mnemonic)
         throw new Error("Passphrase doesn't match");
 
-      await register({
+      const account = await register({
         mnemonic: inputMnemonic,
         userData: props.userData,
         recaptchaToken,
       });
 
-      // TODO import (and sort out conflicts)
+      await importData(account, progressItems, bookmarkItems);
+
+      await updateSettings(backendUrl, account, {
+        applicationLanguage,
+        defaultSubtitleLanguage: defaultSubtitleLanguage ?? undefined,
+        applicationTheme: applicationTheme ?? undefined,
+      });
 
       await restore();
 
diff --git a/src/stores/bookmarks/BookmarkSyncer.tsx b/src/stores/bookmarks/BookmarkSyncer.tsx
index 7455aa47..bd471f45 100644
--- a/src/stores/bookmarks/BookmarkSyncer.tsx
+++ b/src/stores/bookmarks/BookmarkSyncer.tsx
@@ -27,11 +27,13 @@ async function syncBookmarks(
 
       if (item.action === "add") {
         await addBookmark(url, account, {
-          poster: item.poster,
-          title: item.title ?? "",
+          meta: {
+            poster: item.poster,
+            title: item.title ?? "",
+            type: item.type ?? "",
+            year: item.year ?? NaN,
+          },
           tmdbId: item.tmdbId,
-          type: item.type ?? "",
-          year: item.year ?? NaN,
         });
         continue;
       }
diff --git a/src/stores/progress/ProgressSyncer.tsx b/src/stores/progress/ProgressSyncer.tsx
index a7910e58..974b00e3 100644
--- a/src/stores/progress/ProgressSyncer.tsx
+++ b/src/stores/progress/ProgressSyncer.tsx
@@ -1,6 +1,10 @@
 import { useEffect } from "react";
 
-import { removeProgress, setProgress } from "@/backend/accounts/progress";
+import {
+  progressUpdateItemToInput,
+  removeProgress,
+  setProgress,
+} from "@/backend/accounts/progress";
 import { useBackendUrl } from "@/hooks/auth/useBackendUrl";
 import { AccountWithToken, useAuthStore } from "@/stores/auth";
 import { ProgressUpdateItem, useProgressStore } from "@/stores/progress";
@@ -32,21 +36,7 @@ async function syncProgress(
       }
 
       if (item.action === "upsert") {
-        await setProgress(url, account, {
-          duration: item.progress?.duration ?? 0,
-          watched: item.progress?.watched ?? 0,
-          tmdbId: item.tmdbId,
-          meta: {
-            title: item.title ?? "",
-            type: item.type ?? "",
-            year: item.year ?? NaN,
-            poster: item.poster,
-          },
-          episodeId: item.episodeId,
-          seasonId: item.seasonId,
-          episodeNumber: item.episodeNumber,
-          seasonNumber: item.seasonNumber,
-        });
+        await setProgress(url, account, progressUpdateItemToInput(item));
         continue;
       }
     } catch (err) {