Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
西语背单词
西语背单词是专为西班牙语学习者设计的背单词软件。海量原声例句搭配艾宾浩斯记忆法，助你在了解单词真实语境的同时，科学高效的背单词。
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
15 ratings · Top 15%
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for 西语背单词: map the core Education workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Competitive pricing with generous free tier
Assumption to check: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Focus on most-requested features first
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Optimize for 60fps, fast load times
Assumption to check: Poor performance
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
西语背单词是专为西班牙语学习者设计的背单词软件。海量原声例句搭配艾宾浩斯记忆法，助你在了解单词真实语境的同时，科学高效的背单词。 【丰富词书】 涵盖现代西班牙语、新版现代西班牙语等主流西语教材，专四、专八、DELE等考试高频词汇，更有名人著作、动词变位等进阶课本供你挑选。你需要的西语词书，这里都有。 【原声例句】 收录《每日西语听力》中的海量原声例句，内容出自你喜欢的电影、剧集，或是Telediario、Radio ONU、Practica Español等专业新闻，助你了解单词的真实单词语境，专业高效地记忆单词。 【科学记忆】 根据艾宾浩斯记忆曲线，西语背单词内置了科学高效的记忆算法，识别你当前单词的熟悉程度，分析你的记忆遗忘曲线，在单词遗忘的临界点提醒复习，使你更多地把时间花在不熟悉的单词上，而不是一再回顾那些很熟悉的单词，从而实现背单词的高效率、抗遗忘。同时，软件会动态调整单词复习计划，助你轻松高效的完成大量单词的学习。 【详细释义】 单词释义中提供了西汉-汉西、西英词典、西西词典、近义-反义-派生词词典等众多权威词库供你查阅，更支持你随时查看Wordreference、Linguee、Spanishdict、维基等众多知名的在线西语词典，想要了解更多释义的话，快去查看这些优质的词典资源吧。 【同桌组队】 一个人背单词容易半途而废？找个同桌互相监督怎么样。在西语背单词中，你可以和其他正在背单词的小伙伴组成同桌，互相鼓励和监督，让背单词不再是一个人的坚持。 【专业统计】 软件内以图表的形式记录了你每天背单词的情况：打卡日历、日期统计、学习进度、单词学习统计，四种图表，实时更新，助你轻松浏览学习数据、清晰把握背单词进度，学习进步看得见。 【联系我们】 软件内点击 帐号 > 意见反馈 【AI超级会员订阅服务说明】 - 订阅服务：超级会员 - 订阅价格：以iAP申请信息为准 - 付款：用户确认购买并付款后计入iTunes账户 - 苹果iTunes账户会在到期前24小时内扣费，扣费成功后订阅周期顺延一个订阅周期 - 如需取消订阅，请手动打开苹果手机“设置”-->进入“iTunes Store与App Store”-->点击“Apple ID”，选择“查看Apple ID”，进入“账户设置”页面，点击“订阅”，选择对应的项目取消订阅即可。如未在订阅期结束的至少24小时前关闭订阅，此订阅将自动续订。 - 自动续费规则：https://www.eudic.net/v4/en/home/service - 隐私协议：https://www.eudic.net/v4/home/privacy - 最终用户许可协议(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
RevenueCat
BUILD KIT DIFFICULTY
Intermediate
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
