Pricing
Monthly
$12.99/month
full access, month to month
no commitment, switch anytime
Annual
$89.99/year
about $7.50 a month
42% off, compared to monthly
Billed through your Apple ID. Cancel anytime.
Prices in US dollars; your App Store shows the exact price in your local currency.
Free trial
Every new account starts with a 7-day full-access trial: the complete dictionary, the AI tutor, and the adaptive study engine. No payment information is required to start, and nothing is charged during the trial.
Everything included, in every plan
There's only one duiduidui!. Both plans unlock the whole app:
- The complete 200,000-entry dictionary
- Fully offline, anywhere in the world
- The adaptive study engine and flashcards
- Our built-in AI tutor
- Natural Mandarin speech for every entry
- A personal phrasebook
- Smart search: characters, pinyin, or English
- Progress sharing with your teacher, friends, and family
- Connect your own AI through our MCP server
How subscribing works
Download duiduidui! from the App Store and subscribe from inside the app. Billing is handled entirely by Apple: you can change plans or cancel anytime in your device's subscription settings, and your access continues until the end of the current billing period. See the support page for details.