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
VChate - мессенджер для ВК
ВЧате - это первый клиент для ВКонтакте под Apple Watch®! Это приложение позволит вам просматривать новостную ленту, диалоги и отвечать на сообщения прямо со своих часов.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
4 ratings · Below Average
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/
Preview a sample Build Kit No email needed
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for VChate - мессенджер для ВК: map the core Social Networking 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
Focus on unique features like VK integration and community building.
Assumption to check: Limited features compared to larger messaging apps
Validate with people who use this workflow before building.
Hypothesis 2
Optimize message loading and rendering.
Assumption to check: Performance issues with large chats
Validate with people who use this workflow before building.
Hypothesis 3
Implement end-to-end encryption for messages.
Assumption to check: Lack of security features
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
ВЧате - это первый клиент для ВКонтакте под Apple Watch®! Это приложение позволит вам просматривать новостную ленту, диалоги и отвечать на сообщения прямо со своих часов. Популярные вопросы: Как включить голосовой ввод на русском языке? Необходимо нажать кнопку "Написать", далее в окне с быстрыми вариантами ответа сильно нажать на экран (Force Touch) и выбрать русский язык. Оставайтесь всегда на связи, где бы вы ни были. Основные возможности приложения: - Просмотр новостной ленты - Просматривать диалоги - Просмотр чатов с пользователями - Просмотр картинок, которые вам прислали - Поддержка групповых бесед - Отправка сообщений - Просмотр комментариев к постам - Отправка комментариев Внимание! Для данного приложения требуется наличие Apple Watch®!
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
Zustand
React Navigation
react-native-reanimated
BUILD KIT DIFFICULTY
Expert
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.
