# Gugu Pinyin - Private Engine — Fully offline, no tracking > Fully offline, no tracking (iPhone/iPad app by 海洋 杨.) - Source: https://appshunter.io/ios/app/gugu-pinyin-private-engine/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 - Age rating: 4+ - Requires: iOS 15.0 · 331 MB - Languages: Chinese - Released: 2026-08-12 - Data updated: 2026-09-09 - User reviews in markdown: https://appshunter.io/ios/app/gugu-pinyin-private-engine/id6788966388/reviews.md ## What is Gugu Pinyin? Gugu Pinyin 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. 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. Beautiful Themes 14 premium keyboard themes (free + Pro) - all keys change color instantly when you switch. Switch themes and all keys change color instantly. 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", Gugu Pinyin works without it. The keyboard extension has zero network capability - system-enforced isolation means your keystrokes stay on your device. Subscription & Lifetime • Yearly ¥5: Unlock popup customization, flip animations, backspace gestures • Lifetime ¥25: One-time purchase, all premium features forever Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nigoolasi.github.io/policy/pinyin-privacy.html ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | 咕咕年度会员 | $9.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 咕咕输入法一次性买断 | $5.99 | one-time | ## Version history (last 5 releases) ### 2.0.2 — 2026-08-27 • Smarter typo correction: full coverage of single-letter slip-ups (substitution / transposition / missing / extra) plus new two-letter correction — even two wrong letters get fixed to the right candidate • Better key feel: letter keys now commit on finger lift, greatly reducing accidental input • Redesigned membership center with clearer perk display • Fixed minor UI issues (e.g. logo key overflow) Always improving ### 2.0.1 — 2026-08-23 • Fixed long-input lag: 40+ letters type smoothly with synced keypress, sound and haptics • Upgraded typo correction: slip-ups like "nihap" are intelligently fixed to "你好" and pinned to the front — press space to commit • Fixed occasional keyboard crash on long input; input length capped at 60 chars for stability • Redesigned the subscription active page with a golden-crown celebration look, perks at a glance • Added a limited-time promo on Home: price adjusts on Aug 24 — subscribe now to lock in the current price • Space-bar member badge now uses brand gold, visible on every skin • Sharper app logo and refined onboarding layout Always improving ### 2.0.0 — 2026-08-23 • Fixed long-input lag: 40+ letters type smoothly with synced keypress, sound and haptics • Upgraded typo correction: slip-ups like "nihap" are intelligently fixed to "你好" and pinned to the front — press space to commit • Fixed occasional keyboard crash on long input; input length capped at 60 chars for stability • Redesigned the subscription active page with a golden-crown celebration look, perks at a glance • Added a limited-time promo on Home: price adjusts on Aug 24 — subscribe now to lock in the current price • Space-bar member badge now uses brand gold, visible on every skin • Sharper app logo and refined onboarding layout Always improving ### 1.0.3 — 2026-08-16 • Upgraded Liquid Glass skin with a real frosted-glass panel — content behind the keyboard now shows through blurred, closer to the native iOS liquid glass look • Fixed repeated key hints: each hint (emoji, punctuation, number swipe, caps, etc.) now appears at most 5 times after install, then stays quiet Always improving ### 1.0.2 — 2026-08-15 • Smoother typing: faster key response and candidate refresh • Keys now commit on press, no need to wait for release • Fixed choppy backspace sound during long press • Emoji panel now shows the most frequently used emojis, added rose • New key usage hints (punctuation swipe-up, number swipe-down, caps toggle, etc.) • Improved context-aware continuation after commit (e.g. "上"+w → 午, b → 班) • Supports abbreviated pinyin at sentence end (e.g. zhongw → 中午) • Enlarged emoji key icon, renamed to "咕咕" • Language model fully enabled for better sentence input Always improving ## More apps by 海洋 杨 - [嘎嘎笔画-隐私简单输入法](https://appshunter.io/ios/app/id6787876520) - [OneBoat - all in one](https://appshunter.io/ios/app/oneboat-all-in-one/id6792317638) - [PinShot - Watermark Cam](https://appshunter.io/ios/app/pinshot-watermark-cam/id6792954585) - [Lixing Wubi Keyboard](https://appshunter.io/ios/app/lixing-wubi-keyboard/id6794551274) All apps by 海洋 杨: https://appshunter.io/developer/1749185256 --- *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 2026-09-09.*