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
LiveConcat - Livephoto Stitch
LiveConcat is an iOS app built for Live Photo collages
$0.99
PRICE
$0.99
No 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.
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 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 LiveConcat - Livephoto Stitch: 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
No watermarks, premium for HD export only
Assumption to check: Watermarks on free tier
Validate with people who use this workflow before building.
Hypothesis 2
Chunked processing with progress indicator
Assumption to check: Crashes on large files
Validate with people who use this workflow before building.
Hypothesis 3
AI-powered filters and one-tap enhance
Assumption to check: Limited filters
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
LiveConcat is an iOS app built for Live Photo collages. Combine Live Photos and still images on a single canvas, then export a result that still plays with motion when you long-press in the Photos app. 【HIGHLIGHTS】 • Live Photo collages — merge multiple Live Photos while preserving motion • Mixed media — combine Live Photos and still images on one canvas • Rich layouts — 2-up, 4-grid, 9-grid, 3-column, 3-row, L-shape, and freeform • Canvas controls — aspect ratios (including 9:16, 9:21), 12 preset backgrounds, custom background images • Fine-tuning — cell spacing, corner radius, per-image crop and zoom • Freeform mode — drag, pinch to scale, rotate, and bring items to front • Flexible export — JPEG / HEIF stills, or a single Live Photo • Three quality tiers — Standard, High, and Original • On-device processing — all editing and export happens locally; nothing is uploaded 【HOW IT WORKS】 1. Tap Start Collage on the home screen 2. Pick a template or switch to freeform mode 3. Add Live Photos or still images from your library 4. Adjust aspect ratio, background, spacing, and corner radius 5. Long-press a filled cell to crop and reposition 6. Tap Export, choose format and quality, then save to Photos 【LAYOUTS】 • 2-up — side-by-side or stacked split • 4-grid — classic 2×2 grid • 9-grid — 3×3 grid for multi-photo sets • 3-column / 3-row — strip-style layouts • L-shape — large primary cell with two smaller cells • Freeform — place and transform images without grid constraints 【EXPORT】 • Still images: JPEG or HEIF • Live Photo: requires at least one Live Photo cell; long-press in Photos on a real device to verify motion • After export: continue editing, open Photos, or return home 【PRIVACY】 LiveConcat needs access to your photo library to import media and save your collages. The app does not collect, upload, or share your photos or videos. All processing is done on your iPhone. 【REQUIREMENTS】 • iOS 17.0 or later • Live Photo export is best verified on a physical device Questions or feedback? Reach us through the support page.
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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
React Native
FFmpeg
Supabase Storage
RevenueCat
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.
