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
Skywall Pro - HD+ Wallpapers
The only wallpaper app you'll ever need
$1.99
PRICE
$1.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
1,475 ratings · Top 15%
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 included
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 Skywall Pro - HD+ Wallpapers: 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
Provide user-generated categories and wallpapers.
Assumption to check: Limited wallpaper categories and selections
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced search and filtering options.
Assumption to check: Difficulty in browsing large wallpaper collections
Validate with people who use this workflow before building.
Hypothesis 3
Add user profiles for saving favorite wallpapers and preferences.
Assumption to check: Lack of personalization features
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to share their favorite wallpapers on social media.
Assumption to check: No social sharing options
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
The only wallpaper app you'll ever need. Say hello to Skywall. Explore Sift through hundreds of original wallpapers hand crafted in house by the the Skywall team. Enjoy exclusive walls designed specifically for your devices. You won't find these backgrounds in any other app. Upload You can upload as many photos as you want and store them securely in Cloud for Free Wall of the Day Come back every day for a new treat. This is where we showcase newly created Skywall, or just some of our favorites. Contact us if you want your own original work in the spotlight. Stunning UI Fall in love with an app designed with Material in mind. Open up Skywall continually for some daily eye candy. Updated Daily We'll be constantly designing new Skywall for you. This means new high quality content within the app every day. If you like Skywall please take a moment to leave a review or visit our pages: https://www.facebook.com/iSkywall/ We’re always happy to help. Thank you for using Skywall!
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
Zustand
@react-navigation/native
expo-image-picker
react-native-gesture-handler
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
