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
FE File Explorer
FE File Explorer is a file manager app on your iPhone and iPad
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
5,784 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 included18 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 FE File Explorer: map the core Utilities 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 extensive cloud service options and easier connections.
Assumption to check: Limited integration with some cloud services
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the UI to improve navigation and usability.
Assumption to check: Cluttered user interface with many options
Validate with people who use this workflow before building.
Hypothesis 3
Optimize file handling and transfer speed for better performance.
Assumption to check: Performance issues with large file transfers
Validate with people who use this workflow before building.
Hypothesis 4
Introduce customizable settings and themes for a personalized experience.
Assumption to check: Lack of customization options for users
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
FE File Explorer is a file manager app on your iPhone and iPad. It can access not only local files, but also files on your computer, NAS and cloud storages. Transfer files among those locations. Stream movies and music to your iPhone/iPad. Directly view and manage documents, photos, files on your computer and cloud without downloading to your iPhone/iPad. FEATURES: * Access network shares on macOS, Windows, Linux, Time Capsule, NAS via SMB/CIFS protocol. * Access WebDAV Server, FTP Server and SFTP Server * Access cloud storages: Google Drive, Dropbox, OneDrive, Box. * Automatically discover comptuers, NAS and servers when you setup new connections. * View, copy, move, rename and delete your files right on iPhone/iPad. * Stream movies and musics from network shares and cloud storages to iPhone/iPad. * AirPlay photos, musics and movies on Apple TV. * Sort and search files * Archive and unarchive files * Dark Mode * Multiple windows on iPad * Integrated with iOS Files app * Distribute configurations via MDM (Mobile Device Management). * Built-in FTP Server and HTTP Server * File Transfer: Copy files among servers, cloud storages, iPhone and iPad. Transfer files by drag and drop. Nearby file transfer: Directly transfer files between two nearby iOS devices. ===== CONTACT US ===== Email: [email protected] Twitter: @SkyjosApps Facebook: @SkyjosApp
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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
Supabase
@react-navigation/native
expo-file-system
react-query
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.
