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
Convert XPS to PDF
The xps file format is a new document format similar to pdf, but many users still want to use the old pdf format for their daily work.
$0.99
PRICE
$0.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.7
9 ratings · Top 50%
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 included
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 Convert XPS to PDF: map the core Productivity 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
Expand to support more file types like DOCX, PPTX.
Assumption to check: Limited file format support beyond XPS
Validate with people who use this workflow before building.
Hypothesis 2
Optimize conversion algorithm for better performance.
Assumption to check: Users report slow conversion times
Validate with people who use this workflow before building.
Hypothesis 3
Integrate sharing features for users to easily share PDFs.
Assumption to check: No sharing options for converted files
Validate with people who use this workflow before building.
Hypothesis 4
Implement a help section with FAQs and user support contact.
Assumption to check: Lack of user support or FAQs
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
The xps file format is a new document format similar to pdf, but many users still want to use the old pdf format for their daily work. You dont know how to convert xps to pdf? Looking for xps to pdf converter? Because of these problems,coder TuPhan has released the "Convert xps to PDF" app completely free and easy to use. The highlight of the app "XPS to PDF - Convert your XPS to PDF" is a powerful conversion capability to convert xps to pdf. After downloading the app, you can select files from your device or from your online file storage apps. Conversion is done very quickly and simply, note that your device needs to be connected to the Internet to be able to use this app, app works online so does not require the phone or tablet must have a high profile or a large capacity to work. After successful conversion, you can view, edit, delete the converted pdf file. Since it is the first version, app is difficult to avoid unexpected errors, the author hopes to receive comments from people to improve more and more in the next version. Thank you for your support!
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
Axios
React Navigation
@react-native-community/async-storage
expo-file-system
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
