Contact Us
Email: arxivchat@gmail.com
Please include your device model, iOS version, app version (Settings → About → Version), the feature involved, and a screenshot. We usually reply within 3 business days.
You can also send feedback in-app: Settings → Feedback.
Frequently Asked Questions
How often is paper data updated?
App data stays in sync with the arXiv website: each site update triggers a sync that normally completes within 30 minutes. Paper dates are the arXiv submission dates. Only “previous day” submissions are updated on business days, so Friday papers appear the following Monday; there are no updates on weekends or US federal holidays.
Sign-in is failing. What should I do?
Check your connection first, then try another sign-in method (Apple, WeChat, or email code). If only one method fails, tell us the time it happened and we will check server logs. If you see “account has been merged”, that identity is already bound to another account — sign in with the original account instead.
I've used up my AI interpretation or translation quota
AI interpretation, abstract translation, PDF translation, and daily briefs have a daily quota for non-members, which resets each day. A membership unlocks unlimited use.
How long does PDF translation take, and how long is it available?
Translation jobs are queued by paper length; completion ranges from minutes to tens of minutes. Translated files have a validity period (“translation valid until” in the App). Download or save it before it expires — after that you must regenerate it.
My membership is not active, or I don't see it on a new device
Tap “Restore Purchases” on the membership page and confirm you are using the same Apple ID. If it still fails, send us a screenshot of your purchase history.
How do I cancel my subscription?
Open iOS Settings → tap your Apple ID at the top → Subscriptions → Academic Cat → Cancel Subscription. Benefits remain until the end of the current period and will not renew. Deleting the App does not cancel the subscription.
How do I request a refund?
For App Store purchases, refunds are handled by Apple. Visit reportaproblem.apple.com to submit a request. We cannot process refunds directly.
How do I get a paper PDF emailed to me?
On the PDF reader page, tap “Want to read later? Tap here to email the PDF”, or set your paper delivery email in Settings first. Check your spam folder if it does not arrive.
My favorites or reading history disappeared
Make sure you are signed in to the same account and that iCloud sync is enabled in Settings. Signing out clears the local cache; signing back in re-syncs from the server.
How do I delete my account and all data?
Open Settings → Account Management → Delete Account. Deletion is permanent and server-side data is removed within a reasonable period. Note: deleting your account does not cancel an Apple subscription — cancel it separately in iOS subscription settings.
I'm not receiving push notifications
Check iOS Settings → Notifications → Academic Cat, and make sure the relevant categories (daily updates, translation finished, trending papers) are enabled in the App's notification settings.
Which languages and devices are supported?
Simplified Chinese, Traditional Chinese, English, Japanese, Korean, and Indonesian. Works on iPhone and iPad, iOS 14 or later.