Privacy Policy
Effective date: October 24, 2026
| App | Cap Learning: AI Vocabulary (Android package com.pikacap, iOS bundle com.pikacap.app) |
|---|---|
| Developer | HTCuber |
| Contact | hieu.cuber@gmail.com |
This Privacy Policy explains how Cap Learning: AI Vocabulary ("Cap Learning", "the app"), published on Google Play and the App Store by HTCuber ("we", "us"), collects, uses, shares and protects information. Cap Learning was previously named "Pika Cap" / "PikaCap"; this policy applies to the app under any of these names.
1. Information we collect
You do not need to give us your name, email address or phone number. The app creates an account automatically from a random identifier on your device.
Information you or your child provide
- Learner profile: the profile name you choose, learning and native languages, daily goal, and an optional profile picture. If you upload a profile picture, it is stored on our servers.
- Photos of objects: when you take or choose a photo to learn a word, the photo is sent to our AI provider to recognise the object. A cut-out "sticker" of the object is stored on our servers as part of your word collection. The full original photo stays on your device.
- Voice recordings: in speaking practice (Free Talk), your recorded speech is sent to our speech-to-text provider to be transcribed, and the text is used to reply and give feedback. In some exercises, speech is recognised by your phone's built-in speech service (Apple or Google). We do not keep the audio after transcription.
- Learning activity: saved words, review results, exercise answers, streaks, stars, badges and avatar frames.
- Leaderboards: other learners can see your public nickname, the preset avatar or frame you chose, and your learning statistics. You can hide a profile from leaderboards in the app's settings. Leaderboards never show profile pictures.
Information collected automatically
- Device and app information: device model, operating system and app version, language, a random app/installation identifier, and a push-notification token if you allow notifications.
- Usage and diagnostics: which screens and features are used, crash reports and performance logs.
- Purchases: subscription status and purchase history, processed by Google Play / the App Store and RevenueCat. We never receive your card or payment details.
We do not collect your location, contacts or other files on your device, and the app shows no third-party advertising.
2. How we use information
- To provide the app's features: recognising objects, building your word collection, speaking practice, pronunciation audio, reviews, rewards and leaderboards.
- To manage subscriptions and unlock Premium features.
- To fix crashes and improve the app's quality and content.
- To send learning reminders, if you turn on notifications.
We do not sell personal information, and we do not use it for advertising or advertising profiles.
3. Service providers
We share information only with providers that process it on our behalf to run the app:
| Provider | Purpose | Data |
|---|---|---|
| Supabase | Account, database and file storage | Learner profile, learning data, word stickers, profile picture |
| OpenAI | Object recognition, speech-to-text, generated learning content | Photos of objects, voice recordings, learning text |
| ElevenLabs, Google Cloud Text-to-Speech, VoiceRSS, Microsoft speech services | Pronunciation audio | Words and sentences to read aloud (text only) |
| Google Firebase (Analytics, Crashlytics) | Usage statistics and crash reports | Device information, usage events, crash logs |
| Sentry | Error monitoring | Crash and error logs, device information |
| RevenueCat, Google Play, Apple App Store | Subscriptions | Purchase and subscription status |
| Expo, Firebase Cloud Messaging, Apple Push Notification service | Notifications | Push-notification token |
We may also disclose information if required by law or to protect the safety of our users.
4. Children
Cap Learning is designed for families, and learner profiles may belong to children. A parent or guardian should set up the app, create learner profiles and decide whether to add a profile picture or use speaking practice. We collect only what is needed for the learning features described above, we do not show ads, and we do not ask children for contact details.
A parent or guardian can review or delete a child's information at any time (see section 6). If you believe a child has provided information without a parent's consent, contact us at hieu.cuber@gmail.com and we will delete it.
5. Retention and security
We keep your information while your account is active. Voice recordings are processed for transcription and not stored by us. Data is sent over encrypted connections (HTTPS) and stored with access controls. When you ask us to delete your account, we delete your profile, learning data, stickers and profile pictures from our servers within 30 days, except records the law requires us to keep (for example, purchase records).
6. Your choices and rights
- Access, correction and deletion: you can change profile names and pictures in the app. To get a copy of your data or delete your account and all its data, email hieu.cuber@gmail.com with your learner profile name. We reply within 30 days.
- Leaderboards: you can hide a learner profile from leaderboards in settings.
- Notifications: you can turn notifications off in the app or in your device settings.
- Camera, photos and microphone: the app asks before using them, and you can withdraw permission in your device settings.
7. Changes to this policy
We may update this policy when the app changes. The new version will be posted at this address with a new effective date, and significant changes will be announced in the app.
8. Contact
HTCuber — hieu.cuber@gmail.com