--- title: "化合价速查与化学式练习2026 - Reviews, Revenue and Downloads in China | Apple App Store" description: "化合价速查与化学式练习是一款面向初中化学学习的离线工具，适合在预习、作业订正和考前复习时使用。 应用围绕化学式书写这一高频痛点设计，提供常见元素化合价、原子团速查、交叉法练习、正误判断和错题复习。所有内容均保存在本机，不需要登录，不联网，不收集个人数据。 核心功能： 1. 常见元素与原子团化合价速查，支持按名称、符号和分类快速查找。 2. 化学式书写练习，覆盖氧化物、酸、碱、盐等常见题型。 3" --- # 化合价速查与化学式练习2026 — China > 初中化学式书写离线训练 ![化合价速查与化学式练习2026 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/87/f9/83/87f9831d-cc26-5ed2-1aed-495b01fd1c03/AppIcon-0-0-1x_U007ephone-0-1-85-220.png/434x0w.png) **Developer:** [Nanjing Yunxiaochuang Technology Co](https://apptail.io/developer/nanjing-yunxiaochuang-technology-co-HBRIMb) (China) **Category:** Education **Rating:** N/A (0 ratings) **Price:** ¥1.00 **Bundle ID:** com.duhao.apps.valenceFormulaTrainer **Store:** Apple App Store **Country:** China **Version:** 1.1 (released 2026-08-04) **Original Release:** 2026-06-17 **Languages:** English, French, German, Japanese, Korean, Portuguese, Russian, Chinese, Spanish **App Store Link:** [Download on Apple App Store](https://apps.apple.com/cn/app/app/id6780235106) **AppTail Page:** [https://apptail.io/app/2026-xfMA/china](https://apptail.io/app/2026-xfMA/china) ## 化合价速查与化学式练习2026 Description 化合价速查与化学式练习是一款面向初中化学学习的离线工具，适合在预习、作业订正和考前复习时使用。 应用围绕化学式书写这一高频痛点设计，提供常见元素化合价、原子团速查、交叉法练习、正误判断和错题复习。所有内容均保存在本机，不需要登录，不联网，不收集个人数据。 核心功能： 1. 常见元素与原子团化合价速查，支持按名称、符号和分类快速查找。 2. 化学式书写练习，覆盖氧化物、酸、碱、盐等常见题型。 3. 交叉法步骤提示，帮助理解下标约分和正负价配平。 4. 错题本与掌握统计，自动记录薄弱元素和易错题型。 5. 离线题库与专项练习模板，适合日常刷题和考前复盘。 ## 化合价速查与化学式练习2026 Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/31/61/9a/31619aeb-3cd5-f60a-dcb4-71dd5693d5cf/219-valenceFormulaTrainer-marketing.png/1290x2796.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ae/ef/4e/aeef4e86-3229-3c40-4a8f-ba736a29c3e9/01-home.png/1290x2796.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/bf/bb/ea/bfbbead4-ab4b-a00f-efce-78cf8af486eb/02-feature.png/1290x2796.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/11/e7/5a/11e75a50-d419-671c-bda5-985a8e52f6c6/03-settings.png/1290x2796.png) ## 化合价速查与化学式练习2026 Available In - [Austria](https://apptail.io/app/2026-xfMA/austria) - [Barbados](https://apptail.io/app/2026-xfMA/barbados) - [Bermuda](https://apptail.io/app/2026-xfMA/bermuda) - [Belize](https://apptail.io/app/2026-xfMA/belize) - [China](https://apptail.io/app/2026-xfMA/china) - [Costa Rica](https://apptail.io/app/2026-xfMA/costa-rica) - [Cyprus](https://apptail.io/app/2026-xfMA/cyprus) - [Czechia](https://apptail.io/app/2026-xfMA/czechia) - [Germany](https://apptail.io/app/2026-xfMA/germany) - [Denmark](https://apptail.io/app/2026-xfMA/denmark) - [Dominican Republic](https://apptail.io/app/2026-xfMA/dominican-republic) - [Algeria](https://apptail.io/app/2026-xfMA/algeria) - [Finland](https://apptail.io/app/2026-xfMA/finland) - [France](https://apptail.io/app/2026-xfMA/france) - [Grenada](https://apptail.io/app/2026-xfMA/grenada) - [Guyana](https://apptail.io/app/2026-xfMA/guyana) - [Hong Kong SAR China](https://apptail.io/app/2026-xfMA/hong-kong) - [Hungary](https://apptail.io/app/2026-xfMA/hungary) - [Israel](https://apptail.io/app/2026-xfMA/israel) - [Jordan](https://apptail.io/app/2026-xfMA/jordan) - [Japan](https://apptail.io/app/2026-xfMA/japan) - [Kenya](https://apptail.io/app/2026-xfMA/kenya) - [Cambodia](https://apptail.io/app/2026-xfMA/cambodia) - [South Korea](https://apptail.io/app/2026-xfMA/south-korea) - [Kazakhstan](https://apptail.io/app/2026-xfMA/kazakhstan) - [Lebanon](https://apptail.io/app/2026-xfMA/lebanon) - [Lithuania](https://apptail.io/app/2026-xfMA/lithuania) - [Luxembourg](https://apptail.io/app/2026-xfMA/luxembourg) - [Macao SAR China](https://apptail.io/app/2026-xfMA/macau) - [Malta](https://apptail.io/app/2026-xfMA/malta) - [Mexico](https://apptail.io/app/2026-xfMA/mexico) - [Nicaragua](https://apptail.io/app/2026-xfMA/nicaragua) - [Norway](https://apptail.io/app/2026-xfMA/norway) - [Qatar](https://apptail.io/app/2026-xfMA/qatar) - [Russia](https://apptail.io/app/2026-xfMA/russia) - [Slovenia](https://apptail.io/app/2026-xfMA/slovenia) - [El Salvador](https://apptail.io/app/2026-xfMA/el-salvador) - [Türkiye](https://apptail.io/app/2026-xfMA/turkey) - [Uganda](https://apptail.io/app/2026-xfMA/uganda) - [Venezuela](https://apptail.io/app/2026-xfMA/venezuela) - [British Virgin Islands](https://apptail.io/app/2026-xfMA/british-virgin-islands) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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