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.
Welcome to Psiphon, an open source application built on leading-edge, research-driven security and network technologies
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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 Psiphon VPN: Freedom Online: 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: User complaints about slow connection speeds.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited number of free servers.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Confusing settings interface.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Frequent ads for premium services.
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.
Welcome to Psiphon, an open source application built on leading-edge, research-driven security and network technologies. With over 150,000,000 downloads, Psiphon securely connects you to your apps and sites. Whether you're browsing on public Wi-Fi or looking for a more private connection, Psiphon offers a worry-free online experience with our mobile security. PSIPHON’S FEATURES: MOBILE SECURITY - MORE THAN A SECURE MOBILE AND HOTSPOT VPN - Proxy access ensures that you can browse securely - VPN enables secure and private browsing from virtually anywhere - Protect your connection across networks, including public hotspots - Hotspot VPN protection means your mobile security is safeguarded on any network PRIVATE BROWSING AND A SEAMLESS EXPERIENCE - Mobile security automatically selects protocols to provide a reliable connection - Secure VPN allows for a smooth and private browsing experience, available with multiple language options OPEN SOURCE & TRUSTED FOR SECURE BROWSING - Secure VPN established through a trusted network of constantly changing servers, designed for private access - Open source transparency ensures trust and confidence in your secure connection FAST, PRIVATE, AND RELIABLE VPN CONNECTION - Mobile security protection is maintained, even on public or unfamiliar networks - Private browsing supports users including international journalists, independent media, and NGOs - Our optimized VPN infrastructure ensures consistent and responsive connectivity - Browse securely with Psiphon, and stay protected online with just one tap ABOUT SUBSCRIPTIONS: - A subscription removes ads and allows you to surf the Internet with a faster VPN! - Payment will be charged to your iTunes Account at confirmation of purchase. - Subscriptions automatically renew 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 subscription. - No cancellation of a current subscription is allowed during the active subscription period. - Subscriptions may be managed and auto-renewal may be turned off by going to your Account Settings after purchase. - Any unused portion of a free trial period will be forfeited when you purchase a subscription. Privacy Policy: https://psiphon.ca/en/privacy.html Terms of Use: https://psiphon.ca/en/license.html
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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.