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
OverlyCam - Camera Overlay
OverlyCam – Align & Recreate Photos Perfectly
$1.99 · In-app purchases
PRICE
$1.99
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/
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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 OverlyCam - Camera Overlay: 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
Expand the library of overlays and allow user-generated content.
Assumption to check: Limited overlay options compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate editing tools for brightness, contrast, and filters.
Assumption to check: Lack of advanced editing features post-capture.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a cloud backup feature for user convenience.
Assumption to check: No cloud backup for saved photos.
Validate with people who use this workflow before building.
Hypothesis 4
Consider a flexible subscription model with trial options.
Assumption to check: High price point for additional features.
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
OverlyCam – Align & Recreate Photos Perfectly OverlyCam helps you recreate photos with precision by overlaying a reference image directly on the live camera viewfinder. Instead of showing the full photo, OverlyCam extracts contours and displays them as a semi-transparent overlay. This makes it easy to match framing, structure, and perspective without being distracted by color or lighting differences. Why you’ll love OverlyCam Whether you’re recreating old memories, capturing consistent progress shots, or matching before/after photos, OverlyCam gives you the tools to line up your shot exactly the way you want. Key Features Reference Overlay Select a reference photo and overlay it on the camera preview. Adjust the overlay intensity to suit your scene. Adaptive Viewfinder The camera viewfinder automatically adjusts its aspect ratio to match the reference image, ensuring accurate framing and composition. Live Match Score Get real-time feedback with a match score from 0–10. The score updates continuously as your camera view aligns with the reference image. Auto Shoot Enable automatic capture to take photos when the match score reaches 8 or higher. Perfect for hands-free alignment and consistency. Perfect for • Recreating old photos • Before & after comparisons • Consistent framing across shoots • Daily photo sequences for time-lapse creation • Progress photos (fitness, construction, art, etc.)
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
React Native
Expo
React Navigation
expo-camera
react-native-image-picker
@react-native-async-storage/async-storage
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.
