Feiyu Pinyin IME: Private

Feiyu Pinyin IME is a privacy-focused Chinese Pinyin input method powered by a self-developed local engine. It runs entirely offline with zero network access - no tracking, no data collection, no uploads.

Smart Pinyin Guidance
As you type, valid next letters are highlighted while invalid ones fade, helping you navigate the keyboard faster. Combined with phrase prediction and a large local dictionary, your typing is smooth and efficient.

Smart Correction
One or two wrong letters are still understood: missed keys, mistyped keys and fuzzy sounds are corrected on-device, using only your own dictionary, domain packs and past words. You can also turn on "Use neural network matching" to let an on-device model rank candidates, so long sentences and homophones come out in the right order - all offline.

Flow Commit (experimental)
Confirmed words commit automatically - no need to tap each candidate, and words commit as whole units instead of being split. Choose a Conservative / Standard / Aggressive tier; enable it in Settings, with a free trial for non-subscribers.

9-key (T9) & 26-key Layouts
Both a full 26-key QWERTY layout and a 9-key (T9) grid are supported - long-press the 中/En key to switch. T9 decoding runs entirely on-device, with full / abbreviated / mixed pinyin, syllable selection and segment-by-segment commit. While you type it decodes lightly and only runs full precision when you pause, so long sentences stay smooth.

Self-developed Local Engine
All pinyin conversion, phrase matching, and prediction happen on-device. No cloud dependency means zero network latency and absolute privacy.

QWERTY + Swipe Typing
Full QWERTY layout with swipe-to-type support and dual-label keys (letters + numbers). Backspace swipe gestures for clearing or batch deleting text, and swipe down to undo a deletion.

Email & URL Typing
Type @ and common suffixes such as @qq.com, @163.com and @gmail.com appear as candidates - one tap to complete. In email and URL fields, the punctuation keys switch to @ and .com.

Domain Dictionaries (membership)
Switch on any of 15 domain packs: real estate, construction, astronomy, tendering, campus, chemistry, coding, geography, history, romance, management, music, physics, comebacks, internet slang. Type the full pinyin and the word comes up directly. Packs are injected only while the keyboard is on screen - never saved to your learned words.

Advanced Features (some are membership perks, with a free trial)
• Cursor mode: long-press a trigger key (G on 26-key / ' on punctuation / 5 on 9-key) and drag to move the cursor
• Clipboard history: long-press the space bar to bring up copied text and tap to insert it
• One-handed mode: shrink the keyboard to one side; swipe the space bar to switch hands

Beautiful Themes
20 premium keyboard themes (free + membership) - all keys change color instantly when you switch.

Popup System
Long-press a/e keys for punctuation popups, l key for emoji - all in an 18-cell grid layout.

Absolute Privacy
Unlike keyboards that require "Allow Full Access", Feiyu Pinyin IME works without it. The keyboard extension has zero network capability - system-enforced isolation means your keystrokes stay on your device.

Subscription & Lifetime
• Monthly / Yearly subscription: unlock domain dictionaries, popup customization, flip animations, backspace gestures and more
• Lifetime: one-time purchase, all premium features forever

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://lanceryoung.github.io/policy/pinyin/privacy.html