Support

We're happy to help.

Contact us

Email hello@sluxstudio.com. Please include your device (iPhone, iPad or Mac), its software version, and what happened. We usually reply within two business days.

Common questions

Which books can I open?

EPUB books, and PDF files that contain real text. Scanned PDFs (pictures of pages) are not supported yet. Books protected by DRM from other stores cannot be opened.

How do word explanations work?

When you tap a word, Reader sends the sentence to an AI model, which explains the word as it is used in that sentence, in Traditional Chinese. Explanations are usually accurate but can sometimes be wrong, so treat them as a helpful guide.

Is there a daily limit?

Yes. Each account can look up a limited number of new sentences per day; sentences you have looked up before do not count. The limit resets every day at 08:00 Hong Kong time (00:00 UTC).

Does it work offline?

You can read, highlight and review saved words offline. New word explanations need an internet connection and will work again as soon as you are back online.

How do I keep my books on all my devices?

Sign in with the same account on each device. Your books, saved words, highlights and reading positions sync automatically.

How do I delete my account?

Open the app's account settings and choose Delete Account. This permanently removes your account and its synced data. See the Privacy Policy for details.

How do I cancel a subscription or get a refund?

Purchases are handled by Apple. Manage or cancel subscriptions in Settings → your name → Subscriptions on your iPhone or iPad, and request refunds at reportaproblem.apple.com.