Localize copies a set to another source language with the translations emptied — what carries over, what does not, and why the taught language cannot change.

Paste up to 50 words at once, choose the separators, and mark the practised word in every example with double parentheses so exercises can find it.

A word card crops every picture to 3:2 from the centre — the sizes that survive that crop, the formats it accepts and the ten-megabyte limit.

A set is private until you say otherwise — what a link and the public level really grant, and why an assigned task gives a student no access to the set.

Removing a language pair hides everything that was created inside it. Nothing is deleted — add the pair back and it all returns.

The invite button activates as you type, a comma or a space separates addresses, and an address you have already invited is quietly skipped.

A shared link never expires but dies the moment you generate a new one; an emailed invitation lasts seven days. What a student sees on a dead one.

Signing up as a teacher creates a student account beside it: one login, two separate libraries, and a switch that ends your other sessions.

Work done through a task link is recorded nowhere: the person sees their own result and the teacher sees nothing. Assign the task when you need the result.