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
PPL Electric
power in your hands – anytime, anywhere
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
26 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/
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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 PPL Electric: map the core Utilities 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
Add comparative analytics and predictive billing features.
Assumption to check: Limited features for bill analysis and insights.
Validate with people who use this workflow before building.
Hypothesis 2
Optimize app performance with caching and lazy loading.
Assumption to check: Slow loading times during high traffic.
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline access for recent bills and usage.
Assumption to check: No offline functionality.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to set personalized alerts based on usage or payment dates.
Assumption to check: Inadequate customization options for notifications.
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
power in your hands – anytime, anywhere. take control of your electric account with the ppl electric utilities mobile app. designed for convenience and simplicity, this app puts everything you need right at your fingertips. why you’ll love it · manage your account: view billing and payment history, make secure payments, and set up paperless billing or bill reminders in seconds. · stay informed: track your energy usage and set personalized alerts to stay on top of your consumption. · report outages fast: quickly report and check outage status. · biometric sign-in: log in securely using face id or fingerprint for instant access. · plan ahead: make payment arrangements and manage preferences without calling customer service. key benefits · convenience: everything you need, all in one place. · control: monitor and manage your energy usage anytime. · confidence: secure login and trusted ppl electric support. features include: paying your bill: · effortlessly pay your bill using your bank account, credit/debit card, paypal, venmo, apple pay or google pay · check your account balance · review payment history · manage payments – one time and auto pay outage information: · report an outage · view outage status · display outage map account details: · review your bill · check account status · review account activity · easily move between your utility accounts *use of the ppl electric mobile app requires an active account that is registered online at pplelectric.com
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
Axios
Zustand
Victory Native
React Navigation
BUILD KIT DIFFICULTY
Advanced
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.
