三三輸入法

ThreeThree is a numpad input method designed for Cantonese/Traditional Chinese users. It uses the expired patent HK1035043, allowing users to select characters using only 2 to 3 number keys, combined with swipe gestures for fast and accurate typing.

【Core Functions】

• Nine-grid Chinese input: Number keys for character encoding, supports instant character selection via swipe, intuitive operation.

• Both Chinese and English support swipe input. English input uses a common vocabulary database for automatic character estimation, ensuring correct character selection even if your swipe isn't precise.

• Homophone search, related word suggestions, one-click switching between simplified and traditional Chinese.

• Automatically learns your character usage habits, prioritizing frequently used words for a smoother experience.

• Emoji search table, supports keyword search in both Chinese and English.

• Clipboard history: Long-press the paste button to retrieve previously copied content.

• AI intelligent rewriting (requires setting a Gemini API key): Select a text to rewrite or correct grammar with one click.

• Voice input

• Keyboard size, position, height, and font are all customizable; dark/light themes follow the system.

【Privacy Commitment】 All Chinese input, learning records, and clipboard history are stored only on your phone and will not be uploaded to any server. The AI ​​rewriting feature is optional; you need to manually enter your Gemini API key before the selected text is sent to the official Google API. Voice input also uses Android's built-in speech recognition service. Please see the Privacy Policy for details.

Completely free, no ads, no in-app purchases.