Englisys

KO/EN

Support

Support for the Englisys app on iOS and Android (com.sinzjang.Englisys). Last confirmed: October 14, 2026.

Contact

For accounts, study records, subscriptions, billing, the microphone, or privacy requests, email sinzjang@gmail.com. There is no phone support. We reply by email on business days.

What to include

  • The email you use to sign in (the Google or Apple address, if that is how you sign in)
  • Device: iPhone or Android, and the OS version if you have it
  • App version (profile screen, or the store listing)
  • What you were doing and what happened. For a purchase, the approximate time
  • For a privacy deletion, the subject line “Englisys account deletion”

Do not send your password, card number, or a photo of an ID. We cannot look up your password.

Sign-in

  • Sign in with email and password, Google, or Apple.
  • One email is one account. If that email already uses another sign-in method, the app asks you to use that method.
  • You can change the display name on the profile screen.
  • Sign-out ends the session on that device. It does not delete the account, study records, or the store subscription.

Delete your account

You can delete an account you created from inside the app. If you already uninstalled the app, you can request the same deletion by email.

  1. Open Englisys and sign in to the account you want to delete.
  2. Open the profile screen.
  3. Tap Leave, then confirm Delete.
  4. That device deletes the signed-in account, the password hash, review sessions, word progress, review history, and app settings.

Account and study records already synced to the cloud may survive that step. Email sinzjang@gmail.com from the account address with the subject “Englisys account deletion”. After we confirm it, we delete the cloud copy we hold within 30 days.

  • Deleted: on that device, the account identifiers, display name, sign-in identifiers, password hash, and that account’s review sessions, word progress, review history, and app settings. On request, the same account and study records in the cloud.
  • Also deleted if you uninstall: the local database on that device, including speaking and listening practice results.
  • Never held by the app: card numbers.
  • Kept separately: the App Store or Google Play subscription and receipt. The store keeps those as payment records. Deleting the account does not cancel the subscription.
  • Cannot be deleted in the app: the built-in admin session used when nobody is signed in. It is not an account you created.

The same explanation is on Delete account.

Subscriptions, cancel, and restore

  • Englisys Pro (pro_monthly) and AI Plus (ai_plus_monthly) auto-renew monthly. The price is the one shown on the App Store or Google Play purchase screen.
  • If you do not cancel, the next month is charged at least 24 hours before the period ends.
  • Cancel on iOS: Settings → Apple ID → Subscriptions → Englisys.
  • Cancel on Android: Google Play → Payments & subscriptions → Subscriptions → Englisys.
  • Deleting the app, signing out, or deleting the account does not cancel the subscription.
  • Refunds and unused days in a paid period follow Apple or Google policy. We cannot refund a store charge ourselves.
  • After a new device or a reinstall, if access is missing, use Restore on the membership screen. The device must use the same store account that paid.

What each plan includes is in Subscriptions.

Microphone and study alarms

  • Speaking, shadowing, pronunciation, and spoken AI conversation need microphone permission. If you denied it: on iOS, Settings → Englisys → Microphone; on Android, Settings → Apps → Englisys → Permissions.
  • Study alarms are scheduled only on this device. There is no remote push.
  • If an alarm does not fire, allow notifications for Englisys in system settings and save the weekday and time again in the app. Focus modes and battery restrictions can block alarms.

Study records

Records are stored on the device first. When sync runs, review sessions and settings tied to the account can match the cloud. Study continues from what is already on the device if the network is down. If another device looks empty, sign in with the same account, wait for sync, and open the app again.

Privacy requests

Ask for access, correction, deletion, or restriction at sinzjang@gmail.com. What we process, how long we keep it, and which providers receive it is in the Privacy Policy.

Please also read the Privacy Policy and Terms of Use.

Policy pages on this site

Use these URLs for the store privacy policy, support URL, and account deletion URL.