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
Hawaiian Electric Mobile
The Hawaiian Electric or HECO mobile application is a great way to view information on known outages for the islands of Oahu, Maui, Hawaii, Lanai, and Molokai
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 1.9
89 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 included18 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 Hawaiian Electric Mobile: map the core Productivity 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
Focus on optimizing performance and user experience.
Assumption to check: Poor user ratings indicating dissatisfaction with app performance
Validate with people who use this workflow before building.
Hypothesis 2
Add more functionalities like energy usage statistics and alerts.
Assumption to check: Limited features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate a help center or chat support feature.
Assumption to check: Inadequate customer support options
Validate with people who use this workflow before building.
Hypothesis 4
Redesign the UI with modern aesthetics and usability enhancements.
Assumption to check: User interface appears outdated
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
The Hawaiian Electric or HECO mobile application is a great way to view information on known outages for the islands of Oahu, Maui, Hawaii, Lanai, and Molokai. Get up-to-date outage information, such as areas impacted; number of customers affected; and estimated restoration time. Receive important information from Hawaiian Electric with our alert and news notification service. Be advised of outages near your current location, using the geolocation feature on your mobile device and sign up for alerts on a specific outage. You can also report an outage directly or get access to the county-specific trouble lines from the mobile application. You can access your online account to view your electric bill, as well as stop/move your electric service if needed. Payments can be made directly from your checking account or with a credit card through Speedpay. You can also start new electrical service. In addition, you can access an interactive map to find any of our electric vehicle (EV) fast chargers across the islands we service. The map allows you to find a fast charger close to you and receive information about the charger type and location. Step-by-step driving instructions are also available to help you get to your EV fast charger quickly!
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
Zustand
React Navigation
React Native Reanimated
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.
