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
Secure XLSX 2 SQLite Converter
Introducing Our Data Converter: Your Versatile Offline File Converter
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.0
2 ratings · Below Average
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 included17 files
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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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 Secure XLSX 2 SQLite Converter: map the core Developer Tools 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 include other file formats like CSV.
Assumption to check: Limited file type support; only XLSX.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize conversion algorithms for faster processing.
Assumption to check: Conversion speed may be slow.
Validate with people who use this workflow before building.
Hypothesis 3
Implement thorough testing and improve app stability.
Assumption to check: Poor user reviews about crashes.
Validate with people who use this workflow before building.
Hypothesis 4
Add options to export to other formats or directly to cloud services.
Assumption to check: Lack of export options for SQLite files.
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
Introducing Our Data Converter: Your Versatile Offline File Converter Effortlessly convert your Excel (.xlsx) and CSV files to SQLite databases, and vice versa, directly on your iPhone, iPad, or iMac. No internet connection needed. Keep your sensitive data safe and secure, always under your control. Key Features: True Offline Conversion: Complete privacy and control over your data. Uncompromising Security: Your files are protected at all times. Lifetime Access: One-time purchase for unlimited conversions. Intuitive Design: Easy-to-use interface for seamless conversions. Rapid Performance: Quick results, even with large files. How it Works: Choose Your File: Select your Excel, CSV, or SQLite file from your device. Start Conversion: Initiate the conversion process with a simple tap. Access Converted File: Instantly view and use your converted file. Ideal For: Developers and data analysts working on the go. Businesses managing data securely on their devices. Individuals seeking a convenient offline file conversion solution. Take control of your data today with DataBridge! This app lets you: Convert Excel to SQLite on your iPhone, iPad, or iMac. Convert CSV to SQLite on your iPhone, iPad, or iMac. Convert SQLite to CSV and Excel offline on your iPhone, iPad, or iMac. 100% offline. Totally secure. No subscriptions. Key Benefits: Ultimate Portability: Convert files anytime, anywhere on your Apple device. Enhanced Security: Protect sensitive data from online threats. Cost-Effective: One-time purchase, no recurring fees. Time-Saving: Rapid conversions boost productivity. Versatile Compatibility: Works seamlessly with various file formats. Experience the DataBridge difference today! Additional Considerations: Screen Capture: Include screenshots showcasing the app's interface and features. App Store Optimization: Incorporate relevant keywords (e.g., "offline file converter," "Excel to SQLite," "iPhone data management") for better search visibility. User Testimonials: Add quotes from satisfied users to build trust. Free Trial: Consider offering a limited free trial to encourage downloads. By emphasizing the app's portability, security, and convenience, you can effectively target iPhone, iPad, and iMac users seeking a reliable offline file conversion solution.
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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
@react-native-community/progress-bar
expo-file-system
react-native-share
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.
