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
Package Tracker - Tracking App
our app is a powerful tool designed to simplify the process of tracking deliveries from all your favorite shipping providers in one place
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
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 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 Package Tracker - Tracking App: map the core Shopping 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 a more intuitive dashboard to view all packages together.
Assumption to check: Difficulties with tracking multiple packages at once
Validate with people who use this workflow before building.
Hypothesis 2
Expand the list of supported carriers for broader usability.
Assumption to check: Limited carrier support
Validate with people who use this workflow before building.
Hypothesis 3
Improve notification reliability and customization options.
Assumption to check: Push notification issues
Validate with people who use this workflow before building.
Hypothesis 4
Design a cleaner, more organized UI for better user experience.
Assumption to check: User interface feels cluttered
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
our app is a powerful tool designed to simplify the process of tracking deliveries from all your favorite shipping providers in one place. whether you're expecting packages from ups, fedex, dhl, amazon, or local carriers, this app consolidates all tracking information into a single, easy-to-use platform. features include: - universal tracking: supports tracking for all major carriers worldwide. - real-time notifications: receive timely alerts on your shipment's status, including out-for-delivery and delivery confirmation. - estimated delivery times: stay informed with accurate etas, so you know exactly when to expect your package. - privacy focused: data encryption ensures that your tracking details remain secure and private. with our app, you can track all your deliveries with ease, save time, and ensure you never miss a delivery again! perfect for online shoppers, business owners, and frequent travelers. unlock unlimited tracking and real-time notifications with our premium subscription for just $9.99 a year. add as many packages as you need, with instant updates on every delivery. stay organized and never miss a shipment—subscribe now for a full year of hassle-free tracking! privacy policy: https://docs.google.com/document/d/1yvbun5ngizbicrmzkggy9bylkboninvcmjbkp6nbkca/edit?usp=sharing terms of use: https://docs.google.com/document/d/1bgoefu9oanzw3rf5sd38fiostu5nqdbqtopgfjazhqg/edit?usp=sharing
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
Supabase
Axios
React Navigation
React Native Paper
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.
