concrnt · totegamma · Aug 5, 2026 · Aug 5, 2026
diff --git a/app/public/locales/en/translation.json b/app/public/locales/en/translation.json
@@ -710,7 +710,9 @@
         "crnt12": "Communicating with emoji reactions is so smooth!",
         "crnt13": "Even if the server I’m on shuts down, <br/> I can easily move my relationships to a new server, so no worries!",
         "crnt14": "I’m hungry YO",
-        "crnt_totegamma": "This is exactly it!"
+        "crnt_totegamma": "This is exactly it!",
+        "v2NoticeTitle": "Create your account on the Concrnt v2 app",
+        "v2NoticeDescription": "Concrnt is migrating to v2, and new registrations on this site (v1) have closed. Scan the QR code below with your smartphone to get the app and create an account there. You can still log in to existing accounts here."
     },
     "mock": {
         "home": {

diff --git a/app/public/locales/ja/translation.json b/app/public/locales/ja/translation.json
@@ -709,7 +709,9 @@
         "crnt12": "絵文字リアクションでのコミュニケーションが快適！",
         "crnt13": "いまいるサーバーが閉鎖しちゃっても、<br/>関係をそのまま引っ越せるから安心！",
         "crnt14": "おなかすいたYO",
-        "crnt_totegamma": "こういうの、あれ！"
+        "crnt_totegamma": "こういうの、あれ！",
+        "v2NoticeTitle": "新規アカウント作成はConcrnt v2アプリで",
+        "v2NoticeDescription": "Concrntは現在v2への移行期間中のため、このサイト(v1)での新規登録は終了しました。お使いのスマートフォンで下のQRコードを読み取り、アプリからアカウントを作成してください。既存アカウントでのログインは引き続きこちらから可能です。"
     },
     "mock": {
         "home": {

diff --git a/app/public/locales/ko/translation.json b/app/public/locales/ko/translation.json
@@ -268,7 +268,9 @@
                 "item4": "- 다른 유저의 활동 타임라인(Timelines of Other Users' Activities)",
                 "item5": "- 기타 등등..."
             }
-        }
+        },
+        "v2NoticeTitle": "새 계정은 Concrnt v2 앱에서 만들어 주세요",
+        "v2NoticeDescription": "Concrnt는 현재 v2로 이행 중이며, 이 사이트(v1)에서의 신규 가입은 종료되었습니다. 스마트폰으로 아래 QR 코드를 스캔하여 앱을 설치하고 계정을 만들어 주세요. 기존 계정 로그인은 계속 이용할 수 있습니다."
     },
     "registration": {
         "welcome": {

diff --git a/app/public/locales/th/translation.json b/app/public/locales/th/translation.json
@@ -201,7 +201,9 @@
                 "item4": "- Timelines of Other Users' Activities",
                 "item5": "- etc..."
             }
-        }
+        },
+        "v2NoticeTitle": "สร้างบัญชีใหม่ได้ที่แอป Concrnt v2",
+        "v2NoticeDescription": "Concrnt กำลังย้ายไปยัง v2 การสมัครสมาชิกใหม่บนเว็บไซต์นี้ (v1) จึงสิ้นสุดลงแล้ว โปรดสแกน QR โค้ดด้านล่างด้วยสมาร์ตโฟนเพื่อดาวน์โหลดแอปและสร้างบัญชี ส่วนการเข้าสู่ระบบด้วยบัญชีเดิมยังใช้งานได้ตามปกติ"
     },
     "registration": {
         "welcome": {

diff --git a/app/public/locales/zh-Hans/translation.json b/app/public/locales/zh-Hans/translation.json
@@ -707,7 +707,9 @@
         "crnt12": "用表情反应交流真是顺畅！",
         "crnt13": "即使我所在的服务器关闭了，<br/> 我也可以轻松将关系转移到新服务器，所以不用担心！",
         "crnt14": "饿了 YO",
-        "crnt_totegamma": "就是这个！"
+        "crnt_totegamma": "就是这个！",
+        "v2NoticeTitle": "请在 Concrnt v2 应用中创建新账号",
+        "v2NoticeDescription": "Concrnt 正在迁移至 v2，本站（v1）的新用户注册已经停止。请用智能手机扫描下方二维码获取应用并在其中创建账号。已有账号仍可继续在此登录。"
     },
     "mock": {
         "home": {

diff --git a/app/public/locales/zh-Hant/translation.json b/app/public/locales/zh-Hant/translation.json
@@ -707,7 +707,9 @@
         "crnt12": "用表情符號回應來交流真是太順暢了！",
         "crnt13": "即使我所在的伺服器關閉了，<br/> 我也可以輕鬆地將我的關係轉移到新伺服器，所以不用擔心！",
         "crnt14": "我餓了 YO",
-        "crnt_totegamma": "就是這個！"
+        "crnt_totegamma": "就是這個！",
+        "v2NoticeTitle": "請在 Concrnt v2 應用程式中建立新帳號",
+        "v2NoticeDescription": "Concrnt 正在遷移至 v2，本站（v1）的新用戶註冊已經停止。請用智慧型手機掃描下方 QR code 取得應用程式並在其中建立帳號。既有帳號仍可繼續在此登入。"
     },
     "mock": {
         "home": {

diff --git a/app/src/components/Settings/General.tsx b/app/src/components/Settings/General.tsx
@@ -3,7 +3,6 @@ import {
     AccordionActions,
     AccordionDetails,
     AccordionSummary,
-    Alert,
     Box,
     Button,
     Checkbox,
@@ -27,7 +26,7 @@ import { usePreference } from '../../context/PreferenceContext'
 import { useClient } from '../../context/ClientContext'
 import { useEffect, useState } from 'react'
 import { useSnackbar } from 'notistack'
-import { CommunityTimelineSchema, Schemas, Timeline } from '@concrnt/worldlib'
+import { Schemas } from '@concrnt/worldlib'
 import { useTranslation } from 'react-i18next'
 import { type NotificationSubscription } from '../../model'
 import ExpandMoreIcon from '@mui/icons-material/ExpandMore'
@@ -37,7 +36,6 @@ import TextDecreaseIcon from '@mui/icons-material/TextDecrease'
 import DeleteIcon from '@mui/icons-material/Delete'
 import { CCIconButton } from '../ui/CCIconButton'
 import { ListItemTimeline } from '../ui/ListItemTimeline'
-import { TimelineSelector } from '../ui/TimelineSelector'
 
 export const GeneralSettings = (): JSX.Element => {
     const { client } = useClient()
@@ -52,8 +50,6 @@ export const GeneralSettings = (): JSX.Element => {
     const [autoSwitchMediaPostType, setAutoSwitchMediaPostType] = usePreference('autoSwitchMediaPostType')
     const [tutorialCompleted, setTutorialCompleted] = usePreference('tutorialCompleted')
     const [baseFontSize, setBaseFontSize] = usePreference('baseFontSize')
-    const [inviteComment, setInviteComment] = useState<string>('')
-    const [preferredTimeline, setPreferredTimeline] = useState<Timeline<CommunityTimelineSchema> | undefined>(undefined)
 
     const { enqueueSnackbar } = useSnackbar()
 
@@ -656,75 +652,6 @@ export const GeneralSettings = (): JSX.Element => {
                     </DialogActions>
                 </Dialog>
             </Box>
-            <Accordion disableGutters>
-                <AccordionSummary expandIcon={<ExpandMoreIcon />}>
-                    <Typography variant="h4">{t('invitation')}</Typography>
-                </AccordionSummary>
-                <AccordionDetails>
-                    {domainInfo?.meta?.registration == 'invite' && (
-                        <Alert severity="info" sx={{ marginBottom: 2 }}>
-                            {t('inviteNote')}
-                        </Alert>
-                    )}
-                    <Box
-                        sx={{
-                            display: 'flex',
-                            flexDirection: 'column',
-                            gap: 2
-                        }}
-                    >
-                        <TextField
-                            fullWidth
-                            label={t('inviteComment')}
-                            value={inviteComment}
-                            onChange={(e) => {
-                                setInviteComment(e.target.value)
-                            }}
-                            placeholder={'welcome'}
-                        />
-                        <TimelineSelector
-                            label={t('inviteTimeline')}
-                            selected={preferredTimeline}
-                            setSelected={setPreferredTimeline}
-                        />
-                    </Box>
-                    <Box
-                        sx={{
-                            display: 'flex',
-                            gap: 1,
-                            justifyContent: 'flex-end',
-                            marginTop: 2
-                        }}
-                    >
-                        <Button
-                            onClick={(_) => {
-                                if (client.host === undefined) {
-                                    return
-                                }
-
-                                let link = `${window.location.origin}/invitation#inviter=${client.ccid}&domain=${client.host}`
-                                if (inviteComment) link += `&comment=${encodeURIComponent(inviteComment)}`
-                                if (preferredTimeline) link += `&timeline=${preferredTimeline.id}`
-                                if (domainInfo?.meta?.registration == 'invite') {
-                                    const jwt = client.api.authProvider.issueJWT({
-                                        aud: client.host,
-                                        sub: 'CONCRNT_INVITE',
-                                        exp: Math.floor(
-                                            (new Date().getTime() + 14 * 24 * 60 * 60 * 1000) / 1000
-                                        ).toString()
-                                    })
-                                    link += `&ticket=${jwt}`
-                                }
-
-                                navigator.clipboard.writeText(link)
-                                enqueueSnackbar(t('copied'), { variant: 'success' })
-                            }}
-                        >
-                            {t('copyInviteLink')}
-                        </Button>
-                    </Box>
-                </AccordionDetails>
-            </Accordion>
         </Box>
     )
 }
diff --git a/app/src/components/welcome/AppStoreQR.tsx b/app/src/components/welcome/AppStoreQR.tsx
@@ -0,0 +1,108 @@
+import Box from '@mui/material/Box'
+import { Paper, Typography, alpha, useTheme } from '@mui/material'
+import { QRCode } from 'react-qrcode-logo'
+import { useTranslation } from 'react-i18next'
+import SmartphoneIcon from '@mui/icons-material/Smartphone'
+import appStoreBadge from '../../resources/appstore-badge.svg'
+import googlePlayBadge from '../../resources/googleplay-badge.png'
+
+const stores = [
+    {
+        label: 'Download on the App Store',
+        badge: appStoreBadge,
+        url: 'https://apps.apple.com/jp/app/concrnt-world/id6757524249'
+    },
+    {
+        label: 'Get it on Google Play',
+        badge: googlePlayBadge,
+        url: 'https://play.google.com/store/apps/details?id=world.concrnt.app'
+    }
+]
+
+export default function AppStoreQR(): JSX.Element {
+    const { t } = useTranslation('', { keyPrefix: 'welcome' })
+    const theme = useTheme()
+
+    return (
+        <Paper
+            variant="outlined"
+            sx={{
+                display: 'flex',
+                flexDirection: 'column',
+                gap: 2,
+                p: 3,
+                maxWidth: '600px',
+                width: '100%',
+                zIndex: 1,
+                backdropFilter: 'blur(2px)',
+                backgroundColor: alpha(theme.palette.background.paper, 0.8)
+            }}
+        >
+            <Box display="flex" alignItems="flex-start" gap={2}>
+                <Box
+                    sx={{
+                        width: '42px',
+                        height: '42px',
+                        borderRadius: 1,
+                        backgroundColor: alpha(theme.palette.primary.main, 0.14),
+                        color: 'primary.main',
+                        display: 'flex',
+                        alignItems: 'center',
+                        justifyContent: 'center',
+                        flexShrink: 0
+                    }}
+                >
+                    <SmartphoneIcon />
+                </Box>
+                <Box display="flex" flexDirection="column" gap={1}>
+                    <Typography fontWeight={700}>{t('v2NoticeTitle')}</Typography>
+                    <Typography variant="body2" sx={{ opacity: 0.8 }}>
+                        {t('v2NoticeDescription')}
+                    </Typography>
+                </Box>
+            </Box>
+            <Box display="flex" justifyContent="center" gap={3} flexWrap="wrap">
+                {stores.map((store) => (
+                    <Box
+                        key={store.label}
+                        component="a"
+                        href={store.url}
+                        target="_blank"
+                        rel="noopener noreferrer"
+                        sx={{
+                            display: 'flex',
+                            flexDirection: 'column',
+                            alignItems: 'center',
+                            gap: 1.5,
+                            textDecoration: 'none'
+                        }}
+                    >
+                        <Box
+                            sx={{
+                                padding: '8px',
+                                borderRadius: 1,
+                                backgroundColor: '#ffffff',
+                                display: 'flex',
+                                alignItems: 'center',
+                                justifyContent: 'center'
+                            }}
+                        >
+                            <QRCode
+                                value={store.url}
+                                size={288}
+                                ecLevel="M"
+                                quietZone={0}
+                                style={{ width: '144px', height: '144px' }}
+                                fgColor="#000000"
+                                bgColor="#ffffff"
+                                qrStyle="squares"
+                                eyeRadius={0}
+                            />
+                        </Box>
+                        <img src={store.badge} alt={store.label} style={{ height: '40px', width: 'auto' }} />
+                    </Box>
+                ))}
+            </Box>
+        </Paper>
+    )
+}
diff --git a/app/src/main.tsx b/app/src/main.tsx
@@ -19,8 +19,6 @@ import { PrivacyPolicy } from './pages/PrivacyPolicy'
 
 const AppPage = lazy(() => import('./App'))
 const Welcome = lazy(() => import('./pages/Welcome'))
-const Invitation = lazy(() => import('./pages/Invitation'))
-const Registration = lazy(() => import('./pages/Registration'))
 const AccountImport = lazy(() => import('./pages/AccountImport'))
 const GuestTimelinePage = lazy(() => import('./pages/GuestTimeline'))
 const GuestMessagePage = lazy(() => import('./pages/GuestMessage'))
@@ -84,31 +82,9 @@ ReactDOM.createRoot(document.getElementById('root') as HTMLElement).render(
                                 </ClientProvider>
                             }
                         />
-                        {!logined ? (
-                            <>
-                                <Route
-                                    path="/register"
-                                    element={
-                                        <GA4Provider tag={tag}>
-                                            <Registration />
-                                        </GA4Provider>
-                                    }
-                                />
-                                <Route
-                                    path="/invitation"
-                                    element={
-                                        <GA4Provider tag={tag}>
-                                            <Invitation />
-                                        </GA4Provider>
-                                    }
-                                />
-                            </>
-                        ) : (
-                            <>
-                                <Route path="/register" element={<Navigate to="/" />} />
-                                <Route path="/invitation" element={<Navigate to="/" />} />
-                            </>
-                        )}
+                        {/* v1の新規登録は停止済み。アカウント作成はv2(world-app)へ誘導する */}
+                        <Route path="/register" element={<Navigate to={logined ? '/' : '/welcome'} />} />
+                        <Route path="/invitation" element={<Navigate to={logined ? '/' : '/welcome'} />} />
                         <Route
                             path="/import"
                             element={

diff --git a/app/src/pages/AccountImport.tsx b/app/src/pages/AccountImport.tsx
@@ -32,7 +32,7 @@ export default function AccountImport(): JSX.Element {
                 gap: 2
             }}
             additionalButton={
-                <Button component={Link} to="/register">
+                <Button component={Link} to="/welcome">
                     {t('getStarted')}
                 </Button>
             }

diff --git a/app/src/pages/GuestMessage.tsx b/app/src/pages/GuestMessage.tsx
@@ -111,7 +111,7 @@ export default function GuestMessagePage(): JSX.Element {
                         flex: 1
                     }}
                     additionalButton={
-                        <Button component={NavLink} to="/register">
+                        <Button component={NavLink} to="/welcome">
                             {t('getStarted')}
                         </Button>
                     }

diff --git a/app/src/pages/GuestProfile.tsx b/app/src/pages/GuestProfile.tsx
@@ -96,7 +96,7 @@ export default function GuestProfilePage(): JSX.Element {
                         flex: 1
                     }}
                     additionalButton={
-                        <Button component={NavLink} to="/register">
+                        <Button component={NavLink} to="/welcome">
                             {t('getStarted')}
                         </Button>
                     }

diff --git a/app/src/pages/GuestTimeline.tsx b/app/src/pages/GuestTimeline.tsx
@@ -66,13 +66,7 @@ export default function GuestTimelinePage(): JSX.Element {
                         flex: 1
                     }}
                     additionalButton={
-                        <Button
-                            component={NavLink}
-                            to="/register"
-                            onClick={() => {
-                                if (id) localStorage.setItem('preferredTimeline', id)
-                            }}
-                        >
+                        <Button component={NavLink} to="/welcome">
                             {t('getStarted')}
                         </Button>
                     }