卡價通 — 隱私權政策
最後更新：2026 年 9 月 25 日
卡價通（以下稱「本 App」）由 Studio WJ 提供，用相機讀卡片上的編號，查詢日本二手市場的成交行情。這一頁說明你使用本 App 時，我們收集哪些資料、怎麼使用、存在哪裡，以及怎麼刪除。
簡單說
- 不用註冊就能用。第一次打開時，本 App 會建立一個匿名帳號（一串隨機產生的 ID），你的收藏和提醒都存在這個帳號底下。
- 沒有廣告，不追蹤你，也不賣任何資料。
- 相機畫面只在手機上辨識卡片編號，不會上傳或保存。
- 在「設定」裡可以隨時刪除帳號，伺服器上的資料會立刻一起刪除。
我們收集的資料
- 匿名帳號 ID：隨機產生，用來分辨是誰的收藏、提醒和訂閱。
- 收藏與價格提醒：你加進收藏的卡片、張數，以及你設定的價格提醒。
- 今天看過的卡：免費版每天可以看一定張數的價格，所以會記錄你當天看了哪幾張卡。這筆紀錄兩天後自動刪除。
- Apple／Google 登入（選用）：如果你綁定 Apple 或 Google 帳號，我們會保存該帳號的識別碼和電子郵件（Apple 的「隱藏我的電子郵件」地址也可以），用來在換手機時找回你的帳號。
- 推播通知（選用）：如果你允許通知，我們會保存這支手機的推播識別碼、語言和你選的幣別，用來送出價格提醒。
- 訂閱狀態：付款由 App Store 或 Google Play 處理，我們拿不到你的付款資料。我們透過 RevenueCat 確認你的匿名帳號是不是付費會員、到期時間是什麼時候。
- IP 位址：為了防止有人大量建立帳號，建立匿名帳號時會記錄 IP 位址的雜湊值（不是 IP 本身），兩天後刪除。
相機
本 App 只在「掃描」畫面使用相機，用手機上的文字辨識讀出卡片左下角的系列代號和卡號。畫面不會上傳、不會存檔，也不會讀取你的相簿。
卡圖與價格
卡片圖片直接從卡牌官方網站和二手交易平台的圖片網址載入；載入時，你的手機會連到這些網站，它們會看到你的 IP 位址，依照它們自己的隱私權政策處理。價格資料由我們的伺服器整理後提供，你查詢價格不會把你的資料傳給這些平台。
資料存在哪裡、誰會處理
- Cloudflare：本 App 的伺服器和資料庫（亞太區）。
- Google Firebase Cloud Messaging：送出推播通知。
- RevenueCat：確認訂閱狀態。
- Apple、Google：處理登入和付款。
這些服務商只依我們的指示處理資料，不會拿去做廣告或其他用途。
保存期間與刪除
帳號存在期間，我們會保存上面列的資料。在「設定 › 刪除帳號」可以隨時刪除帳號，收藏、提醒、推播識別碼、登入資料和查詢紀錄會立刻從伺服器刪除，無法復原。訂閱要另外在 App Store 或 Google Play 取消；刪除帳號不會自動取消訂閱。
如果你登出，帳號和資料會保留，之後用同一個 Apple 或 Google 帳號登入就能找回來。
兒童
本 App 不是專為 13 歲以下兒童設計，也不會刻意收集兒童的資料。
政策變更
這份政策有變更時，我們會更新這一頁和上面的日期；重大變更會在 App 裡通知。
聯絡我們
Studio WJ r22723575@gmail.com
CardPrice Go — Privacy Policy
Last updated: September 25, 2026
CardPrice Go (the “App”) is provided by Studio WJ. It reads the code printed on a trading card with your camera and shows recent sale prices from Japan’s second-hand market. This page explains what data we collect, how we use it, where it is stored, and how to delete it.
In short
- No sign-up is required. On first launch the App creates an anonymous account (a randomly generated ID) that holds your collection and alerts.
- No ads, no tracking, and we never sell data.
- The camera image is processed on your device to read the card code. It is never uploaded or saved.
- You can delete your account at any time in Settings; your data on our server is deleted immediately.
Data we collect
- Anonymous account ID: randomly generated, used to associate your collection, alerts and subscription.
- Collection and price alerts: the cards and quantities you add, and the alerts you set.
- Cards viewed today: the free plan includes a daily number of price lookups, so we record which cards you viewed that day. These records are deleted after two days.
- Sign in with Apple / Google (optional): if you link an account, we store its identifier and email address (a private relay address is fine) so you can recover your account on a new device.
- Push notifications (optional): if you allow notifications, we store your device’s push token, language and chosen currency to send price alerts.
- Subscription status: payments are handled by the App Store or Google Play and we never receive your payment details. We use RevenueCat to check whether your anonymous account has an active subscription and when it expires.
- IP address: to prevent mass account creation, we store a hash of your IP address (not the address itself) when an anonymous account is created, and delete it after two days.
Camera
The App uses the camera only on the Scan screen, reading the set code and card number with on-device text recognition. Camera images are not uploaded or saved, and the App does not access your photo library.
Card images and prices
Card images are loaded directly from the official card database and marketplace image URLs; when they load, your device connects to those sites, which can see your IP address and handle it under their own privacy policies. Price data is compiled by our server; looking up a price does not send your data to those platforms.
Where data is stored and who processes it
- Cloudflare: the App’s servers and database (Asia-Pacific region).
- Google Firebase Cloud Messaging: delivers push notifications.
- RevenueCat: checks subscription status.
- Apple and Google: sign-in and payments.
These providers process data only on our instructions and do not use it for advertising or other purposes.
Retention and deletion
We keep the data above while your account exists. You can delete your account at any time in Settings › Delete account; your collection, alerts, push tokens, sign-in data and lookup records are deleted from our server immediately and cannot be recovered. Subscriptions must be cancelled separately in the App Store or Google Play; deleting your account does not cancel them.
If you sign out, your account and data are kept, and you can get them back by signing in with the same Apple or Google account.
Children
The App is not directed to children under 13 and does not knowingly collect their data.
Changes
If this policy changes, we will update this page and the date above, and notify you in the App of significant changes.
Contact
Studio WJ r22723575@gmail.com