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
RouteLocker
RouteLocker
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included14 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 RouteLocker: map the core Navigation 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 robust offline maps download feature.
Assumption to check: Limited offline functionality in navigation apps
Validate with people who use this workflow before building.
Hypothesis 2
Offer enhanced organization features for saved routes.
Assumption to check: Difficulty in managing saved routes
Validate with people who use this workflow before building.
Hypothesis 3
Integrate real-time traffic data for better navigation.
Assumption to check: Lack of real-time traffic updates
Validate with people who use this workflow before building.
Hypothesis 4
Ensure high-quality voice navigation with TTS.
Assumption to check: No voice navigation in many apps
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
RouteLocker Save your destinations. Launch navigation instantly. Track your trip with precision. RouteLocker is a lightweight driving companion designed for people who frequently travel to the same locations. Save places once, then tap and go. No searching. No retyping addresses. FEATURES • Save and organize frequently visited locations • Launch navigation directly in Apple Maps, Google Maps, or Waze • Track trip distance, time, current speed, average speed, and max speed • Dynamic GPS accuracy optimized for driving efficiency • Optional auto-stop when arriving at your selected destination • Group saved locations for better organization • Choose MPH or KPH • Clean, distraction-free interface DESIGNED FOR REAL-WORLD DRIVING RouteLocker adapts GPS accuracy based on movement to balance precision and battery efficiency. Trips automatically preserve metrics when stopped, and optional arrival detection can end tracking when you reach your destination. PRIVACY BY DESIGN RouteLocker does not require an account. RouteLocker does not send your data to any server. RouteLocker does not collect, track, or store personal information. All saved locations and trip data remain on your device. SIMPLE WORKFLOW Save a location Tap Navigate Track your trip Stop automatically at arrival or manually when ready RouteLocker keeps your most important destinations one tap away.
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
axios
react-native-maps
expo-location
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.
