Hopefully pretty soon on iOS; it's in beta-testing now, contact us with your name and Registration ID if you'd like a beta invite. We've designed it to be much more platform-agnostic than our current app, so it should be a pretty quick port to Android once it's ready, but we can't offer any more specifics than that.

Yes. Mac first and probably Windows later. It should enter beta-testing on macOS pretty soon, if you sign up for our mailing list you'll get a note when it's available.

We have a couple of Chinese-German and Chinese-French titles now, including the amazing "Grand Ricci." We have licensed a big new collection of other Chinese translation dictionaries that we hope to launch soon, including Spanish. We have no immediate plans to create a version of Pleco for languages other than Chinese, but we will re-evaluate this after 4.0 is released.

Yes. Just copy your Registration ID from the Pleco Registration screen on one device and enter it in the other.

Yes. It needs an internet connection for the initial download and activation, but once it's set up, all features work offline.

Yes, fully both. A couple of dictionaries and readers are traditional- or simplified-only — these are marked as such in the Add-ons screen.

On iOS, tap Import/Export in the sidebar, then Backup Database, save the file, then go into File Manager, tap the (i) button next to the file, tap "Share / Open In," and share it with whatever destination you like. On Android, tap Import/Export, Backup Database, save to your device storage, and copy from there to your computer, or just save it directly to Google Drive or another cloud storage service.