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
Themes: Wallpaper & Widgets
Themes provides wallpaper, widget, icon packs that users can choose from and use it to customize their home screens.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
5,916 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 included17 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 Themes: Wallpaper & Widgets: 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
Provide more flexible customization features like advanced themes.
Assumption to check: Limited customization options for widgets compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Implement user ratings and reviews for wallpapers.
Assumption to check: Inconsistent quality of wallpapers.
Validate with people who use this workflow before building.
Hypothesis 3
Offer an ad-free experience with premium subscription.
Assumption to check: Frequent ads disrupting user experience.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance search with filters and category sorting.
Assumption to check: Limited search functionality.
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
Themes provides wallpaper, widget, icon packs that users can choose from and use it to customize their home screens. Main Features: 1. Provides wallpaper, widget, icon packs in various styles; 2. Supports selecting and downloading to customize the home screen background and icons; 3. Regularly updates the material library for users to browse and choose from. How to Use: 1. Browse and select your favorite wallpaper, widget, icon packs within the app; 2. Follow the instructions to apply the selected content to your device. Note: This application only provides material resources and does not directly modify the iOS system interface. If you have any questions, please feel free to contact us, and we will be happy to assist you. Need help? If you have any questions, please feel free to contact us! We are here to help you and make sure you have a good experience. Contact us: [email protected] This app is subject to Apple's Standard End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Services: https://sites.google.com/view/themes-terms-of-service Privacy Policy: https://sites.google.com/view/themes-privacy
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
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.
