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
Pack The Bag Pro
Have you ever forgotten something really important for your trip?
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.6
48 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 included17 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 Pack The Bag Pro: map the core Travel 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 a more user-friendly interface for adding and editing categories.
Assumption to check: Users find it difficult to customize categories.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to share packing lists with friends or travel companions.
Assumption to check: Lack of collaboration features.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a reminder system for packing based on trip dates.
Assumption to check: No reminders for packing items.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate AI suggestions for common travel items based on destination.
Assumption to check: Limited item suggestions.
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
Have you ever forgotten something really important for your trip? This will never happen again with Pack The Bag! No more incomplete hand-written packlists for your upcoming journey, no more bad feelings or expensive surprises at the airport. Make your next trip the best trip ever. Pack The Bag for iOS helps you managing your packlists. You and your bag will be well-prepared, you will save the trouble of thinking about all the items that you want to carry along on your journey. Pro version: no ads, all features! Import your lists from Pack The Bag Free with only 2 clicks! - Choose from more than 700 items in 27 categories - Easily create, edit and delete items and categories - Maintain your items in the inventory list without the need to create a packlist - Assign a weight to your items to prevent expensive surprises at the airport - Create new packlists by copying from existing lists - Pack your items without running around by optionally sorting by storage locations - Send and share packlists by email - they can be imported on any other iOS device - Files support: Export and import lists via iCloud or file sharing - Airdrop support: Exchange lists with devices in your surrounding - Packing reminder push notification: Define a date when your device should remind you to start packing - Define an icon for your packlist - Sort lists by name or date or reoder them manually - Duplicate a category with all included items (e.g. child 1, child2, …) - Add a filter to display how many items are not yet packed in a list - Color schemes: Choose from different colors - or define your own color - Support for Apple Watch - pack your items on the watch - Supported Languages: English, German, Turkish You have ideas how to improve the app? You found issues? Send feedback to the Pack The Bag team directly from inside the app - your support is highly appreciated!
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
React Navigation
Formik
Yup
@react-native-async-storage
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.
