ZeroOne is a Chinese shuangpin keyboard built around on-device processing.
Highlights:
- Multiple shuangpin schemes (including Xiaohe-style and personal schemes) with auxiliary-code hints
- Candidates, frequency learning, and snippets stay on your device
- Full Unicode emoji categories with recents
- Type = for math, currency, base, and unit conversions
- Color lab for pick, tweak, format, and palettes
- Themes and snippets sync locally between the app and keyboard
- Optional cross-device paste via your private iCloud (off by default; auto-clears)
Privacy:
- No upload of keystrokes, candidates, host text, snippets, or learning data
- No ads, tracking, or third-party analytics
- Full Access is only for App Group sharing; basic typing works without it
Refreshed the setup guide, themes, and tools pages so common settings are easier to find.
Added a pronunciation rail to the 9-key keyboard to clarify ambiguous syllables.
Fixed missing readings and common characters when paging through compact-keyboard candidates.
Improved sentence candidate ranking for some longer input sequences.
Optimized Chinese conversion resources and repeated keyboard opening.
Version 1.2.3
The developer, 海平 吴, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
