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.
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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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Jump VPN - wind v2box wire: map the core Utilities workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Assumption to check: Connectivity issues with certain servers
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited server options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Slow performance during peak times
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of user support options
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Jump VPN is a fast, secure, and easy-to-use VPN service designed to help protect your privacy and provide a smooth internet experience. Whether you're using public Wi-Fi, traveling, or simply looking for a more private connection, Jump VPN helps keep your data secure. Key Features: One-Tap Connection: Connect to a secure VPN server instantly with a single tap. Fast & Stable Servers: Enjoy smooth browsing, streaming, and everyday internet use with optimized servers. Unlimited Usage: No limits on bandwidth or connection time. Privacy Protection: Advanced encryption technology helps protect your online activity and personal data. No Activity Logs: We do not track or store your browsing activity. Smart Server Selection: Automatically connect to the fastest available server for the best experience. Subscription Information: Jump VPN offers auto-renewable subscription options to premium features: Monthly Subscription: $4.99 / month Annual Subscription: $39.99 / year Prices are in U.S. dollars, may vary in countries other than the U.S., and are subject to change without notice. Subscription Terms & Auto-Renewal Rules: Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. No cancellation of the current subscription is allowed during the active subscription period. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy & Terms of Service (EULA): Please visit our official support page for more details: https://jump.vpnmaster.cc
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.