ZeroOne Keyboard

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