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.
Freedom to communicate on your own terms
Free · In-app purchases
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 Element X - Secure Chat & Call: 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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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: Users report issues with message delivery failures.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Privacy concerns regarding data encryption.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited customization options for user profiles.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Performance issues during high usage.
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.
Freedom to communicate on your own terms For individuals and communities - private communication between family, friends, hobby groups, clubs, etc. Element X gives you fast, secure and private instant messaging and video calls built on Matrix, the open standard for real-time communication. This is a free and open-source app maintained at https://github.com/element-hq/element-x-ios Stay in touch with friends, family and communities with: • Real time messaging & video calls • Public rooms for open group communication • Private rooms for closed group communication • Rich messaging features: emoji reactions, replies, polls, pinned messages and more. • Video calling while browsing messages. • Interoperability with other Matrix-based apps such as FluffyChat, Cinny and many more. Privacy-first Unlike some other messengers from Big Tech companies, we don’t mine your data or monitor your communications. Own your conversations Choose where to host your data - from any public server (the largest free server is matrix.org, but there are plenty of others to choose from) to creating your own personal server and hosting it on your own domain. This ability to choose a server is a large part of what differentiates us from other real time communication apps. However you host, you have ownership; it’s your data. You’re not the product. You’re in control. Communicate in real time, all the time Use Element everywhere. Stay in touch wherever you are with fully synchronised message history across all your devices, including on the web at https://app.element.io Element X is our next-generation app If you’re using the previous-generation Element Classic app, it’s time to try Element X! It’s faster, easier to use, and more powerful than the classic app. It’s better in every way and we’re adding new features all the time.
Written user reviews are not shown here. Check current App Store reviews >
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.