Privacy Policy

Effective 9 November 2026

In short: LearnBuddy helps parents run spelling and dictation practice with their children. We collect only what the app needs to work. We don’t show ads, we don’t use tracking or third-party analytics, and we never sell anyone’s information.

LearnBuddy is made by More-Thing Company Limited (“we”, “us”). This policy explains what information the LearnBuddy app collects, how we use it, and the choices you have. It applies to the LearnBuddy iPhone and iPad app and the LearnBuddy website.

Who uses LearnBuddy

A parent or guardian signs in and sets up the family. Children use LearnBuddy on a device the parent links with a QR code; children don’t sign in, and don’t give us an email address or any other contact details.

What we collect

Your account

When you sign in with Apple or Google, we receive your name, email address and an account ID from that service. If you choose “Hide My Email” with Apple, we only receive a private relay address.

Your children’s profiles and practice

The name or nickname and age you enter for each child, and the avatar they choose.
Word lists and tasks you create, practice results, scores, levels, rewards and collected avatars.
A record of which devices are linked to your family, so you can see and remove them.

Photos and handwriting

If you take or pick a photo of a spelling list, it is sent to Google’s Gemini AI service to read the words and create a task. We don’t keep the photo.
For Chinese dictation, your child’s handwriting (drawn on screen or photographed on paper) is sent to Gemini to be marked. We don’t keep the images. The marking result is kept for 7 days so it isn’t charged twice, then deleted.

AI features need your permission

The AI features below use Google’s Gemini on Vertex AI. They stay off until a parent allows them in the app, which says what is sent and to whom. You can turn them off any time in Family → AI features.
On a child’s device, AI features only work after a parent has allowed them for the family.

Lumi, the parents’ assistant

What you type, and any photo, file or voice note you send, goes to Gemini to answer you. Lumi may use your children’s names, ages and practice results to give relevant answers.
Your conversations are saved in your family’s account so you can carry on later; you can delete them in Lumi’s history. Photos, files and voice notes aren’t kept: only a short label like “photo” stays in the conversation.
Microphone: used only while you hold the talk button to record a voice note for Lumi.

Mom Circle, the parents’ community

If you join, we keep your profile (display name, handle, short bio and any school you choose to show), your posts, replies and photos, and the reports you send. Other members can see what you post.
New posts, photos and profiles are checked by Gemini for safety (for example, a child’s personal details) before or after they appear, and some are reviewed by our moderators.
If you turn on notifications, we keep your device’s push token to send Circle notifications. You can turn them off in Circle settings.
Mom Circle is for parents only. It is in the grown-ups’ area, which needs the parent PIN on a child’s device.

Voices

To read words aloud with cloud voices, the words are sent to Google Cloud Text-to-Speech. The audio clips are saved so they can be reused; they contain only the words, not who asked for them. Device voices work entirely on the device.

Subscriptions

Subscriptions are bought through Apple’s App Store. We never see your payment card details.
We use RevenueCat to check subscription status. RevenueCat receives a random family ID and your App Store purchase records, not your name or email.

Device features

Camera: used to take spelling-list photos and to scan the QR code that links a child’s device.
Motion sensor: used only on the device, to make collectible cards shine when you tilt it. Motion data is never recorded or sent anywhere.
App integrity: Firebase App Check uses Apple’s App Attest to confirm requests come from the genuine app. It doesn’t identify you.

How we use information

To run the app: keep your family’s profiles, tasks and progress in sync across your devices.
To provide AI features (reading word lists, marking handwriting, suggesting practice, the Lumi assistant and keeping Mom Circle safe), once you allow them, and cloud voices.
To manage your plan, credits and subscription, and to help you if you contact us.
To keep the service secure and prevent abuse.

We don’t use your information or your children’s information for advertising, profiling or training AI models, and we don’t sell or rent it.

Who we share it with

Only the service providers that run LearnBuddy for us, under their own privacy and security terms:

Google (Firebase and Google Cloud): sign-in, database, file storage, server functions, App Check, Gemini on Vertex AI and Text-to-Speech. Under Google Cloud’s terms, data sent to Gemini through Vertex AI isn’t used to train Google’s models.
Apple: Sign in with Apple and App Store purchases.
RevenueCat: subscription status.

We may also disclose information if the law requires it.

Your information is stored on Google Cloud servers, which may be outside the country where you live.

Children’s privacy

LearnBuddy is meant to be set up and managed by a parent or guardian. We collect children’s information only through the parent’s account and only to provide practice and rewards. Children can’t spend money, contact other people, or share anything publicly in the app. A parent can review, change or remove a child’s profile at any time in the app, or ask us to.

Keeping and deleting information

We keep your family’s information while your account is in use.
You can remove a child’s profile, tasks and linked devices in the app at any time.
To delete your whole account, go to Family → Delete account in the app. This deletes your family’s profiles, words, tasks, practice history, rewards and credits, unlinks and removes the kids’ devices, and deletes your sign-in account straight away. If you signed in with Apple, we also revoke LearnBuddy’s access to your Apple ID.
You can also email us from the email you signed in with and we will delete it within 30 days. Records we must keep by law, such as purchase records held by Apple, aren’t affected.
Deleting your account doesn’t cancel an App Store subscription, and cancelling a subscription doesn’t delete your account. Manage subscriptions in your Apple ID settings.

Security

Information is encrypted in transit, and access rules make sure only members of a family can read that family’s data. No system is perfectly secure, but we work to protect your information and limit who can reach it.

Your rights

Depending on where you live (for example under Hong Kong’s Personal Data (Privacy) Ordinance, the GDPR or COPPA), you may have the right to access, correct or delete your information, or to object to how it is used. Email us and we will help.

Changes to this policy

If we change this policy, we will update the date above, and tell you in the app if the change is significant.

Contact

Questions or requests: wayne.tam@more-thing.com

私隱政策

生效日期：2026 年 11 月 9 日

簡單來說：LearnBuddy 幫助家長和孩子進行默書及串字練習。我們只收集 app 運作所需的資料。我們不顯示廣告、不使用追蹤或第三方分析工具，亦絕不出售任何人的資料。

LearnBuddy 由 More-Thing Company Limited（「我們」）開發。本政策說明 LearnBuddy app 收集甚麼資料、如何使用，以及您可以作出的選擇。本政策適用於 LearnBuddy iPhone 及 iPad app 和 LearnBuddy 網站。

誰會使用 LearnBuddy

由家長或監護人登入並設定家庭。孩子使用家長以 QR code 連結的裝置；孩子無須登入，亦不會向我們提供電郵地址或任何聯絡資料。

我們收集的資料

您的帳戶

當您以 Apple 或 Google 登入時，我們會從該服務取得您的名字、電郵地址及帳戶 ID。如您在 Apple 選擇「隱藏我的電郵」，我們只會收到私人轉發地址。

孩子的檔案及練習紀錄

您為每位孩子輸入的名字或暱稱、年齡，以及孩子選擇的頭像。
您建立的字詞表及任務、練習結果、分數、等級、獎勵及收集到的頭像。
已連結到您家庭的裝置紀錄，方便您查看及移除。

相片及手寫字

如您拍攝或選擇默書範圍的相片，相片會傳送至 Google 的 Gemini AI 服務以讀取字詞並建立任務。我們不會保留相片。
中文默書時，孩子的手寫字（在螢幕上書寫或在紙上拍攝）會傳送至 Gemini 批改。我們不會保留圖片。批改結果會保留 7 日以免重複收費，之後刪除。

AI 功能須經您同意

以下 AI 功能使用 Google Vertex AI 上的 Gemini。在家長於 app 內允許之前，這些功能都會保持關閉；app 會說明會傳送甚麼及傳送給誰。您可隨時在「家庭」→「AI 功能」關閉。
在孩子的裝置上，必須先由家長為家庭允許，AI 功能才能使用。

Lumi 家長助手

您輸入的文字，以及您傳送的相片、檔案或語音訊息，會傳送至 Gemini 以回覆您。Lumi 可能會使用孩子的名字、年齡及練習結果，提供相關的回答。
對話會儲存在您的家庭帳戶，方便您稍後繼續；您可在 Lumi 的紀錄中刪除。相片、檔案及語音訊息不會保留，對話中只會留下「相片」之類的簡短標示。
咪高峰：只在您按住說話按鈕、為 Lumi 錄製語音訊息時使用。

Mom Circle 家長社群

如您加入，我們會保留您的個人檔案（顯示名稱、帳號名稱、簡短介紹及您選擇顯示的學校）、您的帖文、回覆及相片，以及您提交的舉報。其他會員可看到您發佈的內容。
新帖文、相片及個人檔案會由 Gemini 檢查是否安全（例如是否含有孩子的個人資料），部分會由我們的管理員審核。
如您開啟通知，我們會保留裝置的推送代碼以傳送 Circle 通知。您可在 Circle 設定中關閉。
Mom Circle 只供家長使用，位於家長區；在孩子的裝置上須輸入家長 PIN 才能進入。

讀音

使用雲端語音朗讀字詞時，字詞會傳送至 Google Cloud Text-to-Speech。音檔會被儲存以便重用；音檔只包含字詞，並不包含是誰提出要求。裝置語音則完全在裝置上運作。

裝置功能

相機：用於拍攝默書範圍相片，及掃描連結孩子裝置的 QR code。
動作感應器：只在裝置上使用，於傾斜裝置時令收藏卡發光。動作資料從不會被記錄或傳送。
App 完整性：Firebase App Check 使用 Apple 的 App Attest 確認請求來自正版 app，並不會識別您的身份。

我們如何使用資料

運作 app：在您的裝置之間同步家庭檔案、任務及進度。
在您允許後提供 AI 功能（讀取字詞表、批改手寫字、建議練習、Lumi 助手及維護 Mom Circle 安全），以及雲端語音。
管理您的計劃、點數及訂閱，並在您聯絡我們時提供協助。
保障服務安全及防止濫用。

我們不會將您或孩子的資料用於廣告、建立個人檔案或訓練 AI 模型，亦不會出售或出租資料。

我們與誰分享資料

只會與為我們運作 LearnBuddy 的服務供應商分享，並受其私隱及保安條款約束：

Google（Firebase 及 Google Cloud）：登入、資料庫、檔案儲存、伺服器功能、App Check、Vertex AI 上的 Gemini 及 Text-to-Speech。根據 Google Cloud 的條款，經 Vertex AI 傳送至 Gemini 的資料不會用於訓練 Google 的模型。
Apple：Apple 登入及 App Store 購買。
RevenueCat：訂閱狀態。

如法律要求，我們亦可能披露資料。

您的資料儲存在 Google Cloud 的伺服器，伺服器可能位於您居住的國家或地區以外。

兒童私隱

LearnBuddy 應由家長或監護人設定及管理。我們只會透過家長帳戶收集孩子的資料，並只用於提供練習及獎勵。孩子無法在 app 內付款、聯絡他人或公開分享任何內容。家長可隨時在 app 內查看、更改或移除孩子的檔案，或要求我們代為處理。

保留及刪除資料

在您的帳戶使用期間，我們會保留您家庭的資料。
您可隨時在 app 內移除孩子的檔案、任務及已連結的裝置。
如要刪除整個帳戶，請在 app 內前往「家庭」→「刪除帳戶」。這會立即刪除家庭的檔案、字詞、任務、練習紀錄、獎勵及點數，移除已連結的孩子裝置，並刪除您的登入帳戶。如您以 Apple 登入，我們亦會撤銷 LearnBuddy 對您 Apple ID 的存取權。
您亦可以用登入時使用的電郵地址電郵給我們，我們會在 30 日內刪除。法律規定須保留的紀錄（例如由 Apple 持有的購買紀錄）不受影響。
刪除帳戶不會取消 App Store 訂閱，取消訂閱亦不會刪除帳戶。請在 Apple ID 設定中管理訂閱。

保安

資料在傳輸時經過加密，存取規則確保只有家庭成員才能讀取該家庭的資料。沒有系統是絕對安全的，但我們會盡力保護您的資料並限制可接觸資料的人。

您的權利

視乎您居住的地方（例如香港《個人資料（私隱）條例》、GDPR 或 COPPA），您可能有權查閱、更正或刪除您的資料，或反對資料的使用方式。請電郵聯絡我們，我們會協助您。

政策更新

如我們修改本政策，會更新上方日期；如屬重大修改，會在 app 內通知您。

聯絡我們

如有任何問題或要求：wayne.tam@more-thing.com

本政策的中英文版本如有歧異，以英文版本為準。