Privacy

Your books and recordings

Imported audiobooks, EPUBs, PDFs and covers stay on your device. Apple reading voices process EPUB and selectable PDF text on your device. Transcription, dictation and shadowing use on-device speech recognition. Microphone audio for dictation and shadowing is processed without saving a recording.

Your account

You can read without an account. If you sign in, Supabase Auth processes your email and login credentials. Senseward stores account and device identifiers, device model, system version and app version to manage access and troubleshoot problems. Credentials on your device are protected by Apple Keychain.

Sync

Signing in enables learning sync when available. Vocabulary, review history and reading progress save on your device and sync to your account. Manage this in Settings → Sync. Transcripts are copied only if you also enable Copy transcripts to this account. Import your book files on each device you use.

Apple subscriptions and RevenueCat

Apple handles subscription payments. RevenueCat processes a custom User ID and purchase metadata including purchase history, products, transaction environment and subscription status for App Functionality and Analytics. The server maps this billing ID to your Senseward account, so these records are linked to your identity. Billing processing is independent of optional learning analytics and AI consent. We do not enable advertising attribution or tracking integrations, or send email/name attributes to RevenueCat.

Account deletion does not cancel Apple auto-renewal. Manage or cancel through Apple; immediate account deletion remains available. Application erasure proceeds independently of provider outages. RevenueCat cleanup requires verified customer ownership and retention approval; asynchronous provider acceptance is not proof of physical erasure. Supabase Auth credential erasure and legal financial/backup retention are verified separately. We do not promise a retention deadline here.

AI features

With your permission, Senseward sends the content needed for translation, explanations, summaries, questions and Practice to Alibaba Cloud Model Studio (Qwen), Xiaomi MiMo or OpenAI. OpenAI processes text only. This may include selected text, neighbouring sentences, vocabulary, book metadata and a generated practice script. Checking for a saved AI result also sends the relevant reading text. The provider and endpoint determine where processing takes place; the provider’s terms cover retention, training and international transfers. OpenAI may retain API content in abuse-monitoring logs for up to 30 days by default, subject to its retention terms.

Generated book translations and summaries may be reused across accounts when content and AI settings match exactly. Shared entries expire under the cache policy and are removed when the contributing account is deleted. Your saved copies, edits, chat and Practice remain private to your account. Successful results, including Practice lesson text, are retained for recovery until account deletion. The reusable cache expires 90 days after generation; saved results remain available. Your Practice library and recordings are stored on your device.

Withdraw AI permission in Settings → AI to stop new requests. Processing of requests already sent may finish. Sync, optional analytics and microphone permissions have separate controls.

Usage and diagnostics

Senseward records account-linked request details for provider attempts and cost estimates to operate the service and apply daily limits. These records exclude reading text, prompts and audio and are retained for 30 days. Account deletion removes individual records. Aggregate totals without account, device or request identifiers are retained for up to 90 days. Essential login, sync, export, deletion and security events are also logged.

AI operation status, charged sentence or recording units, and service outcomes are available to authorized support for up to 90 days, independently of optional learning analytics. These operational records exclude reading text, prompts and generated results.

Optional product analytics is off by default. If enabled, it records interaction counts and timestamps without reading content or audio. Senseward does not use your data for advertising tracking.

Export and deletion

In Settings → Account, you can export your account data or request account deletion. Deletion runs in the background. Local books remain until you remove them from your library; original files outside Senseward’s storage remain yours.

Contact

For privacy questions, email support@senseward.nwai.cc.