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
Selfie Light Camera
8 expertly tuned professional preset lighting effects Professional-grade lighting: Carefully calibrated presets to suit a variety of scenarios.
$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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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.
// RORK SYSTEM PROMPT
Rork plan preview for Selfie Light Camera: map the core Photo & Video 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
Offer advanced editing tools and filters.
Assumption to check: Limited editing features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement AI enhancements for better low-light performance.
Assumption to check: Poor photo quality in low light
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social sharing options for enhanced user engagement.
Assumption to check: Lack of social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Add cloud storage integration for photo backups.
Assumption to check: No cloud backup for photos
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
8 expertly tuned professional preset lighting effects Professional-grade lighting: Carefully calibrated presets to suit a variety of scenarios. 360° full-color customizable lighting Flexible customization: Freely adjust hue and brightness to create your own unique lighting effects. Precise brightness control system Smart screen brightness adjustment Convenient camera preview feature Real-time preview: Built-in camera allows instant preview of lighting effects. Screen Flickers You can use your phone screen to create colorful flash effects, turning your phone into a disco light or party flash light, while supporting the replacement of background images and flashing frequencies. Simple and intuitive user interface Easily swipe left or right to switch lighting effects — quick and user-friendly. Perfect for enhancing your beauty in selfies and lighting up your live streams effortlessly. Feedback —If you like this app, please rate it 5 stars and give us a good review. —If you have any suggestions or usage questions, please email [email protected]. Privacy policy: https://tdl229.github.io/fill_light/privacy.html
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
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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.
