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
Offline PDF - PageForge
PageForge is the offline PDF toolkit built for people who refuse to upload sensitive documents to the cloud.
$2.99 · In-app purchases
PRICE
$2.99
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 included16 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 Offline PDF - PageForge: 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
Provide more advanced editing tools like OCR and form filling.
Assumption to check: Limited editing features compared to desktop alternatives
Validate with people who use this workflow before building.
Hypothesis 2
Implement folders or tags for better document management.
Assumption to check: Difficulty in organizing documents
Validate with people who use this workflow before building.
Hypothesis 3
Offer cloud sync to allow access across devices.
Assumption to check: No cloud sync options
Validate with people who use this workflow before building.
Hypothesis 4
Support importing from various sources such as cloud storage and email attachments.
Assumption to check: Limited file import sources
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
PageForge is the offline PDF toolkit built for people who refuse to upload sensitive documents to the cloud. Every merge, split, compress, convert, and protect operation runs 100% on your iPhone or iPad. Your files never leave your device. No account required. No tracking. No ads. Most PDF apps send your documents to remote servers. PageForge processes everything locally on your hardware—so contracts, bank statements, medical records, and personal files stay private. EDIT & ORGANIZE • Merge PDF — Combine multiple files into one document • Split PDF — Extract pages or ranges • Rotate PDF — Fix page orientation • Rearrange PDF — Drag and reorder pages • Page Numbers — Add automatic numbering • Watermark — Add custom text overlays • Signature — Sign documents electronically OPTIMIZE • Compress PDF — Reduce file size for sharing • Grayscale — Convert pages to black and white • Repair PDF — Attempt to fix corrupted files SECURE • Protect PDF — Add password encryption • Unlock PDF — Remove passwords locally • Metadata — Edit or wipe document properties CONVERT • PDF to Image — Export pages as JPG or PNG • Image to PDF — Turn photos into a PDF • Extract Images — Pull embedded images from PDFs • PDF to Text — Extract plain text from documents
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
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react-native-paper
@expo/vector-icons
react-native-community/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.
