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Dehelper vs Ciyue: catalog facts
Dehelper	Ciyue
Freemium Free to download, with paid upgrades available for purchase.	Free Free and open source under the MIT licence; AI translation uses your own provider.
Windows, macOS, Linux, Android, iOS, Browser extension	Windows, Linux, Android
Large German-Chinese and Chinese-German dictionaries Full verb conjugation lookup with practice	Opens MDX and MDD dictionary files Searches multiple dictionaries at once
Interface and content aimed at Chinese speakers Some features require purchase	You supply the dictionary files yourself AI translation depends on a third-party service
Downloadable app, Browser extension	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.