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
Lustra - Professional Camera
Lustra transforms your iPhone into a professional camera built for photographers who want full creative control.
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 ratings · Top 5%
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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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 included17 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 Lustra - Professional 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
Lustra can streamline tools to focus on essential editing features.
Assumption to check: Users often find photo editing apps overly complicated.
Validate with people who use this workflow before building.
Hypothesis 2
Implement clear tab navigation and gestures to switch seamlessly.
Assumption to check: Difficulty in navigating between camera and gallery.
Validate with people who use this workflow before building.
Hypothesis 3
Offer various cloud backup plans to enhance user experience.
Assumption to check: Limited cloud storage options.
Validate with people who use this workflow before building.
Hypothesis 4
Provide transparent explanations of what premium features entail to improve user trust.
Assumption to check: In-app purchases can be unclear.
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
Lustra transforms your iPhone into a professional camera built for photographers who want full creative control. Inspired by the tactile simplicity of analog cameras, Lustra puts manual controls front and center so you can focus on making images, not digging through menus. Whether you’re shooting portraits, street photography, cinematic stills, or everyday moments, Lustra gives you powerful tools with a refined shooting experience designed for professionals and enthusiasts alike. Features Professional Manual Controls * Manual focus * ISO and shutter speed control * White balance adjustment * Exposure compensation * Focus peaking * Histogram and exposure tools Shoot Like a Pro * RAW photo capture * High-resolution image processing * Depth-enabled portrait capture * Custom cinematic bokeh rendering * Save editable depth information for later adjustments Designed for Photographers * Analog-inspired interface * Fast, distraction-free shooting * Precision controls always within reach * Built for intentional photography Made for Modern iPhone Cameras Lustra is optimized for the latest iPhone camera systems to deliver professional image quality with intuitive controls and responsive performance. Perfect for photographers searching for: * professional camera app * manual camera app * DSLR camera app * RAW camera * portrait camera * pro photography app * cinematic camera app * film-inspired camera controls Download Lustra and take full control of your photography.
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
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.
