SwiftKey supports Fuzzy Pinyin from version 6.5.5 onwards.
The option to enable Fuzzy Pinyin is available to all users with 'Chinese (PRC)' or 'Chinese (TW)' languages.
- Open the SwiftKey app
- Tap 'Typing'
- Tap 'Typing & Autocorrect'
- Select 'Chinese input'
- Select 'Fuzzy Pinyin'
- Change Fuzzy Pinyin mappings to suit your typing style