英語救星 EnglishSaver
英語救星是一款 AI 英文學習 App，幫助使用者從想表達的中文出發，練習英文句子、獲得提示與答案解析，並把學過的單字延伸成英文故事與插圖。
使用者可以輸入想表達的想法與英文嘗試，App 會逐步提供 AI 提示、正解解析與朗讀練習文本，幫助使用者理解如何自然地用英文表達。練習過程中累積的單字會被保存，之後可用來生成主題英文故事、閱讀理解題與插圖，讓單次練習延伸成可反覆回顧的學習素材。
App 支援練習紀錄與故事書收藏，方便使用者回頭查看句子、提示、朗讀內容、故事與插圖。iOS 版本以行動練習為主，visionOS 版本則將練習紀錄、故事與插圖整理成更沉浸式的學習空間。
主要功能
- 英文練習：輸入中文想法與英文嘗試，逐步查看 AI 提示、答案解析與口說朗讀內容。
- 語音輸入與朗讀：支援語音輸入，並可朗讀提示、答案、口說文本與故事。
- 練習紀錄：保存每次練習的原始輸入、AI 提示、答案與朗讀內容。
- 單字累積：從練習中擷取近期單字，作為後續故事生成素材。
- AI 故事生成：選擇故事主題，用近期學過的單字生成英文故事。
- 故事插圖：根據故事內容產生插圖，並可收藏到故事書。
- 互動字典：閱讀故事時可點選英文單字查詢解釋與例句。
- 閱讀理解：故事可搭配閱讀理解題，幫助檢查理解程度。
- AI 模型設定：預設使用 On-Device AI，也支援 Gemini 與 Groq 的 BYOK 外部文字模型。
- 多語系介面：目前支援繁體中文、日文、韓文、越南文與英文介面。
平台與版本資訊
- iOS App：EnglishSaver，Bundle ID com.YuHsiangChang.EnglishSaver，目前專案版本 1.41。
- visionOS App：EnglishSaverVision，同 Bundle ID 設定為 com.YuHsiangChang.EnglishSaver，目前專案版本 1.2。
- 主要技術：SwiftUI、Apple Foundation Models / On-Device AI、Image Playground / ImageCreator、Speech、AVFoundation。
隱私
此 App 不會透過開發者營運的伺服器向使用者蒐集個人資料。若使用者自行設定外部 AI 文字模型，資料處理方式則依所選服務提供者的政策為準。
English Saver
English Saver is an AI-powered English learning app that helps learners start from the idea they want to express in Chinese, practice English sentences, receive hints and answer explanations, then turn learned vocabulary into English stories and illustrations.
Learners can enter a Chinese thought and their own English attempt. The app provides step-by-step AI hints, a correct-answer explanation, and read-aloud practice text so learners can understand how to express the idea naturally in English. Vocabulary gathered during practice is saved and can later become the material for themed English stories, reading comprehension questions, and illustrations.
Practice records and storybook collections make it easy to revisit sentences, hints, read-aloud content, stories, and artwork. The iOS version focuses on mobile practice, while the visionOS version organizes practice records, stories, and illustrations into a more immersive learning space.
Key Features
- English practice: Enter a Chinese idea and an English attempt, then review AI hints, answer explanations, and speaking practice text.
- Voice input and read-aloud: Use voice input and listen to hints, answers, speaking text, and stories.
- Practice history: Save original inputs, AI hints, answers, and read-aloud content from each session.
- Vocabulary building: Extract recent vocabulary from practice sessions for future story generation.
- AI story generation: Choose a story theme and generate English stories from recently learned words.
- Story illustrations: Generate illustrations from story content and save them to the storybook.
- Interactive dictionary: Tap English words in stories to view explanations and example sentences.
- Reading comprehension: Pair stories with comprehension questions to check understanding.
- AI model settings: Uses On-Device AI by default, with BYOK options for Gemini and Groq external text models.
- Multilingual interface: Currently supports Traditional Chinese, Japanese, Korean, Vietnamese, and English.
Platforms and Versions
- iOS app: EnglishSaver, Bundle ID com.YuHsiangChang.EnglishSaver, current project version 1.41.
- visionOS app: EnglishSaverVision, Bundle ID also set to com.YuHsiangChang.EnglishSaver, current project version 1.2.
- Main technologies: SwiftUI, Apple Foundation Models / On-Device AI, Image Playground / ImageCreator, Speech, and AVFoundation.
Privacy
This app does not collect personal data through developer-operated servers. If a learner configures an external AI text model, data handling depends on the selected service provider's policy.