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
iFocus Stacking
Transform your photography with iFocus Stacking, the top-grade app that combines multiple images shot at different focus distances into a single, perfectly sharp photograph
$39.99 · In-app purchases
PRICE
$39.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
2 ratings · Below Average
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/
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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 iFocus Stacking: 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
Include more advanced editing tools like AI enhancements and batch processing.
Assumption to check: Limited editing features compared to professional software
Validate with people who use this workflow before building.
Hypothesis 2
Offer more competitive subscription plans and trials.
Assumption to check: Higher price point may deter users
Validate with people who use this workflow before building.
Hypothesis 3
Integrate a cloud service for auto-saving and backup.
Assumption to check: Limited cloud backup options for projects
Validate with people who use this workflow before building.
Hypothesis 4
Simplify onboarding process and provide tutorials.
Assumption to check: User interface can be overwhelming for beginners
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
Transform your photography with iFocus Stacking, the top-grade app that combines multiple images shot at different focus distances into a single, perfectly sharp photograph. Whether you're capturing intricate macro details, expansive landscapes, or product photography, achieve unprecedented depth of field that's impossible with a single shot. ### Key Features **Advanced Focus Stacking Algorithm** • State-of-the-art algorithm for superior image quality • Intelligent processing for crisp, artifact-free results **Flexible Input Options** • Import from Photos library or Files app • Share images directly from other apps • Support for JPEG, HEIC, PNG, and other common formats • Batch processing for multiple image stacks **Seamless User Experience** • Real-time progress tracking with detailed stage information • Interactive image reordering with drag-and-drop • Thumbnail preview grid for easy image management • Comprehensive settings with helpful explanations
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
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.
