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
PDF Slicer
a simple to use pdf split and merge application
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 PDF Slicer: map the core Business workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
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Continue in Rork >
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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
Include options for merging or annotating PDFs.
Assumption to check: Limited functionality for editing PDF content.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize PDF handling for better performance.
Assumption to check: Potential issues with large PDF files causing slow performance.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a feedback system and customer support.
Assumption to check: No user feedback or support options available.
Validate with people who use this workflow before building.
Hypothesis 4
Offer more flexible slicing options such as custom page ranges.
Assumption to check: Lack of customizable slicing options.
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
a simple to use pdf split and merge application. pdf slicer lets you split pdf documents into several documents. now you can do this on your ios device with this quick and easy to use the app. import documents from your device storage or drive, onedrive, box, and more. once the document is inserted, long touch the pages in order to create split points and just tap split. pdf merge lets you merge pdf documents of several documents into a pdf. now you can do this on your ios device with this quick and easy to use the app. import documents from your device storage or drive, onedrive, box, and more. split pdf: split a pdf file at a particular page into multiple files. now no worries about a large file to split. merge pdf: select two or more pdf and merge into a single pdf document let us know how you'd like to improve our product. what would you like new in the application. note: as a trial, you'd be able to perform split or merge with a limit of 2 transactions combined, post which you will need to make an in-app purchase to be able to use the functionalities
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
Zustand
react-native-pdf
@react-navigation/native
expo-document-picker
BUILD KIT DIFFICULTY
Intermediate
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.
