# Feiyu Pinyin IME: Private — Fully offline, no tracking

> Offline Chinese Pinyin input method with smart guidance and privacy focus. (iPhone/iPad app by 海洋 杨.)

- Source: https://appshunter.io/ios/app/feiyu-pinyin-ime-private/id6788966388 (this page in markdown: same URL + `.md`)
- Developer: [海洋 杨](https://appshunter.io/developer/1749185256)
- Category: Productivity, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 64 MB
- Languages: Chinese (Simplified, China)
- Released: 2026-08-12
- Data updated: 2026-10-24
- Monetization: freemium

## What is Feiyu Pinyin IME?

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

## Key features

- Fully offline engine
- Smart Pinyin guidance
- Phrase prediction
- 9-key and 26-key layouts
- Swipe typing support
- Clipboard history
- Customizable themes

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| 咕咕年度会员 | $9.99 | per year |
| Gugu Monthly Membership | $0.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Membership | $19.99 | one-time |
| 咕咕输入法一次性买断 | $5.99 | one-time |


## Is Feiyu Pinyin IME safe?

Not enough ratings yet to assess Feiyu Pinyin IME.

## Is Feiyu Pinyin IME legit?

Feiyu Pinyin IME: Private appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Feiyu Pinyin IME is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Feiyu Pinyin IME

### Does Gugu Pinyin have ads?

No, Gugu Pinyin is ad-free. It prioritizes user privacy and does not display advertisements.

### What is the pricing for Gugu Pinyin?

Gugu Pinyin is free to download and use. It offers an optional yearly subscription for $9.99/P1Y which unlocks additional premium features.

### What devices does Gugu Pinyin support?

Gugu Pinyin is available for iPhone and iPod devices.

### How often is Gugu Pinyin updated?

The latest version, 3.2.0, was released on October 7, 2026, indicating regular updates to improve functionality and add features.

### What is the age rating for Gugu Pinyin?

Gugu Pinyin has an age rating of 4+, making it suitable for a wide range of users.

### Does Gugu Pinyin require full access?

No, Gugu Pinyin works without requiring 'Allow Full Access'. Its keyboard extension has zero network capability, ensuring your keystrokes remain on your device.

### What is the Flow Commit feature in Gugu Pinyin?

Flow Commit automatically commits confirmed words without needing to tap each candidate. It allows words to commit as whole units, and users can choose between Conservative, Standard, or Aggressive tiers for this feature.

### Can I customize Gugu Pinyin's appearance?

Yes, Gugu Pinyin offers 20 premium keyboard themes, with some available through membership. Themes change key colors instantly upon switching.

## Version history (last 5 releases)

### 3.5.1 — 2026-10-21

• Smoother 9-key typing: light decoding while you type, full precision when you pause - long sentences no longer stutter
• Smarter correction: missed keys, mistyped keys and fuzzy sounds are now caught, including full-pinyin words like "shurufa" or "xihuan"; fixed correction silently failing on some devices
• New "Use neural network matching" (Settings > Smart, off by default): an on-device model ranks candidates for long sentences and confusable words
• 9-key now types word + particle phrases such as "下次见吧" in one go
• Better email & URL typing: common email suffixes after @, and @ / .com keys in email and URL fields
• Cleaner candidates and sharper key labels

### 3.5.0 — 2026-10-20

• Smoother 9-key typing: light decoding while you type, full precision when you pause - long sentences no longer stutter
• Smarter correction: missed keys, mistyped keys and fuzzy sounds are now caught, including full-pinyin words like "shurufa" or "xihuan"; fixed correction silently failing on some devices
• New "Use neural network matching" (Settings > Smart, off by default): an on-device model ranks candidates for long sentences and confusable words
• 9-key now types word + particle phrases such as "下次见吧" in one go
• Better email & URL typing: common email suffixes after @, and @ / .com keys in email and URL fields
• Cleaner candidates and sharper key labels

### 3.3.2 — 2026-10-14

• The "Keyboard Layout" entry now sits at the top of Settings, with 26-key / 9-key shown as cards with mini keyboard previews — tap to jump straight into each setting
• 26-key settings consolidated: "Dim other keys", "Enlarge keys" and "Letter case" are now grouped under "Key guidance"
• Font size is unified into a single "Keycap label" slider that adjusts every key's main label at once
• 9-key layout polish: the standard bottom row is now "ABC/Chinese · punctuation · space · logo", and backspace deletes one letter at a time (fixed a bug that wiped the whole syllable)
• 9-key "Compact" is renamed "Minimal", and column widths are now evenly aligned
• Hiding secondary labels now works in 9-key too, and the candidate bar can be made even shorter
• 26-key Chinese mode now shows Chinese candidates first instead of letting English words push them down

### 3.3.1 — 2026-10-12

• New Domain Dictionaries: 15 optional word packs — real estate, architecture, coding, astronomy and more. Type the full pinyin and the term appears right away. They stay on device and never mix into your learned dictionary
• Reworked 9-key number pad: the first column is now * + /, the syllable-break key becomes minus, and the bottom-left key uses a clearer back arrow
• Number pad fixes: results now refresh after backspace, and tapping "+" no longer pops open the kaomoji panel
• The candidate bar no longer inserts stray dots — long numbers, dates and times show exactly as they are
• 26-key layout: long-press Shift to jump straight to the number pad (a "123" hint sits under the key); fixed the letter G occasionally failing to type
• Smoother typing and launch: the engine stays resident instead of rebuilding, so the keyboard appears faster and keeps up while you type
• Lighter app colors throughout, and the purchase page now shows its perks as swipeable cards so you can scan every highlight at a glance
• More flexible letter casing: new "Auto Uppercase / Auto Lowercase" options in Settings let the keys show lowercase even in Chinese mode, and Shift temporarily switches to uppercase and commits it
• The "cursor" hint under the G key on the 26-key layout is now smaller, keeping the keyboard cleaner
• The kaomoji key on the 9-key layout no longer wraps its icon in parentheses, keeping the key face cleaner

### 3.3.0 — 2026-10-11

• New Domain Dictionaries: 15 optional word packs — real estate, architecture, coding, astronomy and more. Type the full pinyin and the term appears right away. They stay on device and never mix into your learned dictionary
• Reworked 9-key number pad: the first column is now * + /, the syllable-break key becomes minus, and the bottom-left key uses a clearer back arrow
• Number pad fixes: results now refresh after backspace, and tapping "+" no longer pops open the kaomoji panel
• The candidate bar no longer inserts stray dots — long numbers, dates and times show exactly as they are
• 26-key layout: long-press Shift to jump straight to the number pad (a "123" hint sits under the key); fixed the letter G occasionally failing to type
• Smoother typing and launch: the engine stays resident instead of rebuilding, so the keyboard appears faster and keeps up while you type
• Lighter app colors throughout, and the purchase page now shows its perks as swipeable cards so you can scan every highlight at a glance

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All apps by 海洋 杨: https://appshunter.io/developer/1749185256

## Related topics

[feiyu](https://appshunter.io/ios/topics/feiyu)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*