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
SystemBatteryAnalysis
System Battery Analysis is a professional iOS system management tool that integrates multiple functions such as battery status monitoring, mobile phone configuration query, device performance detection, in-depth batte...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.6
14 ratings · Top 50%
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/
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 SystemBatteryAnalysis: 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
Provide more detailed analytics and recommendations.
Assumption to check: Limited insights into battery health compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Simplify interface and focus on key metrics.
Assumption to check: Cluttered UI with too many stats
Validate with people who use this workflow before building.
Hypothesis 3
Optimize data fetching and rendering processes.
Assumption to check: Performance issues with data loading
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize what data they want to see.
Assumption to check: Lack of customization options for users
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
System Battery Analysis is a professional iOS system management tool that integrates multiple functions such as battery status monitoring, mobile phone configuration query, device performance detection, in-depth battery life analysis, charging power detection, and application lag troubleshooting, comprehensively safeguarding the battery and system status of devices. Battery health: Real-time monitoring of core indicators such as battery capacity, cycle times, and temperature, automatically generating weekly and monthly reports to make the battery status clearly visible. Configuration Query: Precisely query mobile phone configuration records and provide more dimensional system analysis based on big data. Performance analysis: Intelligently parse application lag data, accurately identify performance risks, and help improve the smoothness of device operation. Battery World: Share battery usage experiences, exchange maintenance tips, join the battery community, and discover more like-minded people. Trend tracking: Retain historical detection data, visually present change curves, and continuously monitor the health trend of batteries. Battery Life Analysis: Multi-dimensional dissection of battery life performance, in-depth analysis of power consumption details; Support exclusive battery life data analysis for watches and adapt to more usage scenarios. Battery traceability: Intelligently determine the original or replacement source of the battery, helping to understand the real condition of the device's battery. Charging power: Real-time calibration of charging power, automatic generation of visual data charts, and clear charging speed at a glance.
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.
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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.
