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
Image Comparator +
Image Comparator +
$3.99 · In-app purchases
PRICE
$3.99
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/
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 Image Comparator +: map the core Graphics & Design 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
Implement advanced image comparison algorithms for better accuracy.
Assumption to check: Limited image processing capabilities
Validate with people who use this workflow before building.
Hypothesis 2
Add functionality to save and manage past comparisons.
Assumption to check: No option for saving comparisons
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social sharing features for results.
Assumption to check: Lack of sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Provide tutorials or tooltips for new users.
Assumption to check: Minimal user guidance
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
Image Comparator + Compare Images Side by Side. Detect Differences Instantly. Verify Pixel Precision. Need to spot the difference between two images? Want to confirm if two screenshots are an exact match? Checking aspect ratios, dimensions, or layout alignment? Image Comparator + is a fast, professional image comparison tool built for designers, photographers, developers, and QA teams who need accurate visual verification in seconds. Compare Two Images with Precision Load Image A and Image B directly from your Photos and instantly: • Compare images side by side • Check exact image dimensions (width × height) • Analyze aspect ratios (automatically simplified to 16:9, 4:3, etc.) • Detect perfect match vs. mismatch • Inspect layout alignment and export differences No clutter. No confusion. Just clear visual answers. Powerful Image Comparison Modes Choose the comparison mode that fits your workflow: • Side-by-Side View – Fast visual inspection • Pixel-focused inspection modes for layout validation • Alignment-aware viewing for UI and screenshot comparison Whether you're validating app screenshots or reviewing edited photos, you’ll see differences instantly. Built for Creative and Technical Professionals Perfect for: • UI/UX Designers comparing export versions • Photographers reviewing edits, crops, or color adjustments • iOS & Web Developers verifying asset dimensions • QA Teams validating layout consistency across builds • Content Creators checking social media image formats If your work depends on visual accuracy, this tool belongs in your workflow. Instant Image Insights • Exact pixel dimensions • Simplified and precise aspect ratios • Clear match/mismatch status indicator • Fast image swapping • Visual confirmation when images are loaded Get answers in seconds — not minutes. Clean, Fast, and Focused • Lightning-fast performance • Large, clearly labeled IMAGE A and IMAGE B panels • Smooth animations • High-contrast, distraction-free interface • Optimized for iPhone and iPad Everything is designed to help you compare images quickly and confidently. All image processing happens locally on your device. No uploads. No cloud processing. No data tracking. Your images stay yours. Why Choose Image Comparator +? Because precision matters. When you need to confirm an exact match, validate dimensions, or spot subtle layout differences, Image Comparator + gives you clarity — instantly. Download Image Comparator + today and take control of your image comparisons. Explore more productivity apps for iPhone and iPad at nitrio.com.
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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
Expo
Zustand
react-navigation
expo-image-picker
react-native-share
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.
