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
Safety Light - Flash & Signal
Be seen
$0.99 · In-app purchases
PRICE
$0.99
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 included15 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.
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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.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Be seen. Light your way. Walk with confidence. Safety Light turns your iPhone and Apple Watch into a bright flashlight and a high-visibility colour light — so drivers, cyclists and others are far more likely to notice you in the dark. One-time purchase. No subscription, no ads, no in-app purchases, no account. Walking home after dark? Running before sunrise? Cycling an unlit road? Car broken down at night? Safety Light helps you be seen and find your way. TWO LIGHTS ON YOUR iPHONE - Rear LED torch to SEE the path ahead - The whole screen as a solid colour to BE SEEN from far away - Use them one at a time, or BOTH at once — both can flash in the same pattern iPHONE + APPLE WATCH — ONE PURCHASE - The Apple Watch app is included and works on its own — leave the phone behind - Your wrist becomes a glowing signal light COLOURS THAT GET YOU NOTICED White, Red, Amber, Green, Blue, Violet — plus a custom colour slider. - Red helps preserve your night vision - Amber, green and blue are high-visibility "notice me" colours FLASH MODES FOR EVERY SITUATION - Blink — the classic be-seen flash - Steady — a clean, constant light - Strobe — maximum attention - Beacon — a double-flash pulse - SOS — the Morse signal - Breathe — a gentle, calm glow BUILT FOR THE REAL WORLD - One big Turn on / Turn off button; glove-friendly - Instant on; the light fills the whole screen - Remembers your last colour and mode GREAT FOR Walking, running and dog-walking at night · cycling and commuting · roadside breakdowns · hiking and camping · power cuts · festivals and concerts. PRIVATE & SAFE - No login, no account - No data collected, no tracking, no ads - Works fully offline SAFETY Safety Light is a visibility aid — not a substitute for proper lights, reflective gear, or emergency services. The Strobe and Blink modes flash rapidly; if you or anyone nearby is sensitive to flashing light or has photosensitive epilepsy, please avoid them. While the light is on, the screen stays awake and uses battery, and can warm your phone during long use. PAY ONCE A single, one-time purchase unlocks everything — no subscription, no in-app purchases, no hidden fees. The same purchase covers both the iPhone and Apple Watch apps.
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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
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.
