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
File Manager 11
File Manager - Advance File Manager and Document Reader
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
101 ratings · Top 15%
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 included19 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 File Manager 11: map the core Business 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
Implement multiple cloud integrations for better file management.
Assumption to check: Limited cloud storage options
Validate with people who use this workflow before building.
Hypothesis 2
Enhance search algorithms for faster and more accurate results.
Assumption to check: Poor file search functionality
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to select multiple files for actions like delete or share.
Assumption to check: Lack of batch file operations
Validate with people who use this workflow before building.
Hypothesis 4
Integrate viewers for more file types directly in the app.
Assumption to check: No built-in file viewer for certain formats
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
File Manager - Advance File Manager and Document Reader Manage your Documents & Files with File Manager # File Manager - Create Folder - Create new folders and sub folders - Copy - Copy files/folders between different folders - Move - Move files/folders between different folders - Delete - Select and Delete multiple files/folders - Rename - Rename a file/folder - Trash - Move files to trash recover them if required - Get Info with General and More Info of all type of document. # Read Files - PDF Files - MS Office Documents (Word, Excel and PowerPoint) - iWork Documents (Pages, Numbers and Keynotes) - Images Files (JPG, PNG, GIF, TIFF and others) - Audio Files (MP3, AAC, Apple Lossless, AIFF, WAV) - Video Files (standard iPhone format : H.264, MPEG-4) - OpenOffice Documents (Text, Spreadsheet, Presentation) basic formatting only - Plain Text and RTF (Rich Text Format) - HTML Files - ZIP Files (Uncompress Zip Archives) # Advance Document Viewers - Image Viewer - With thumbnail view - Audio Player - Audio player with different playback controls, AirPlay support, Control with Ear Phone and Ear Pods, Support playing music in background - Video Player - Air Play support and different playback controls # Make Zip - Select Multiple files/folders and make them zip # Create PDF Files - Create PDF - With Different Kind of Page Content - Rich Text Pages - Create Rich Text Pages in File Manager Rich Text Editor - Camera Snaps - Take Snap of your documents - Photos from library - Pick photos from your iPhone/iPad/iPod touch Photo Library - Map Snaps - Create Map Snap - With Address Annotation - Hand Drawing - Create Hand Drawing and add it as PDF Page # Create Protected PDF - Create Password Protected PDF - (PDF file will require password when someone want to open PDF file in any software) - Create Copy Protected PDF - End users will not be able to copy the content of PDF file. - Create Print Protected PDF - End users will not be able to Print the content of PDF file. # Text Files - Create and Edit text files # Audio Recorder - Record Audio With different qualities - Record Audio in background # Hand Drawing - Make Hand Drawing with different colors and save as image # Secure Your Documents - Private Documents Section - Protect App With Password - Touch ID Support # WiFi Sharing - Access Your FileManager Documents From Your Computer With WiFi Sharing - Upload Documents From Your Computer to FileDesk # FTP Sharing - Access Your FileDesk Documents From Your Computer With FTP Client - Upload multiple documents to FileDesk from your computer together # Cloud Share - Dropbox - Google Drive - OneDrive - Evernote - Box.net - SugarSync - WebDav Server - FTP Server - Email Files # Import Files - Photo Library (Video/Audio/Photos) - Camera Capture (Video/Photos) - Clipboard If you enjoy using File Manager, please support us by leaving review in the App Store, or updating you previous review for the new version. Each review matters a lot, and helps us grow and improve our app.
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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
React Navigation
Axios
expo-file-system
React Native Paper
BUILD KIT DIFFICULTY
Advanced
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.
