Support
Tell us what went wrong or what you wish the app did. We answer inquiries within one business day.
Frequently asked questions
I paid but Pro is not active
Access usually turns on within seconds. A slow bank authorisation can take up to five minutes. If it is still Free after a full reload, send the account email you paid with and the time of payment. We check the transaction directly.
Why will this video not open
Langxel rebuilds sentences from the Korean captions YouTube provides. Videos without Korean captions, with auto-captions turned off, or that are private or age-restricted cannot be processed. Open the video on YouTube and check the CC button for Korean first. Korean captions exist per video, not per channel, so another upload from the same channel may work.
How do I cancel
Settings > Subscription cancels it yourself. Billing stops at the next renewal and Pro stays active until the end of the period you already paid for. See the Refund Policy for refund terms.
What do I get for free
Free covers 3 videos of your own each month (up to 20 minutes each) and 10 pronunciation checks a day. Everything in Explore, and any video already prepared, is unlimited and never counts against those. Pro removes both limits.
Who charges me, and where is my receipt
Paddle is the merchant of record. Your card statement shows Paddle, and Paddle issues the receipt and handles tax. Payment method and invoices are managed in the Paddle customer portal, reachable from Settings > Subscription.
I want to delete my account
Settings deletes it yourself. Your study history and saved sentences are erased immediately and permanently. If you have an active subscription, cancel it first so billing stops.
Contact us
We reply to the email address you enter. If the form will not open, write to zeronjang@gmail.com instead.