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
ThemeKit: Widget & Icon Themes
Feeling creative? Introducing ThemeKit: The Ultimate App for iPhone Themes, Widgets, and Customization! Daily updates with 5-8 content sets to make your home screen unique! Customize themes and widgets with your own p...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
26,291 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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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 included18 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 ThemeKit: Widget & Icon Themes: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Feeling creative? Introducing ThemeKit: The Ultimate App for iPhone Themes, Widgets, and Customization! Daily updates with 5-8 content sets to make your home screen unique! Customize themes and widgets with your own photos in a snap. Key Features: - Easy Editing Transform your device with ThemeKit, a powerful kit for convenience and style! Edit iPhone themes and widgets. Choose ready-made themes or create your own in a few steps. Works with iOS 18! - Rich Widgets & Themes & Lock Screen Calendar, Time, Battery, Quotes, Clock, Collage, Weather widgets...choose what you need. Use collage widgets to customize. Dynamic widgets and wallpapers for a cool screen, just for you! - HD Wallpapers & Dynamic Island Get high-quality wallpapers: Depth Effect, dynamic island, and more! Make iPhone 15 fun or match lock screen widgets. Find wallpapers in our themes! - App Icon Changer Pick from 5000+ icons - gothic, anime, minimalist, neon, sports, nature, cute, retro... Customize home screen with high-quality icons! - Festive and Featured Find Christmas, Halloween, Skull, Butterfly, and more. Themes, widgets, icons, wallpapers - all in one place. - Daily Updates New themes, widgets, icons, wallpapers daily! Endless options for you to choose from. - Match Freely Themes, widgets, icons, wallpapers - match without other apps! Customize home and lock screen. Thousands of combinations to personalize your iPhone. Download ThemeKit now and get creative! Subscription options: • Subscribe for all features. • Different plans available. Privacy Policy & Terms of Service: https://doc.ThemeKit.live/Terms-of-Service.html https://doc.ThemeKit.live/Privacy-Policy.html
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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
Offer more themes and widgets with unique designs.
Assumption to check: Limited customization options compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify and clarify subscription options with step-by-step guidance.
Assumption to check: In-app purchase process can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Implement robust testing and user feedback loops for theme compatibility.
Assumption to check: Some themes may not apply correctly across all widgets.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize image loading and caching.
Assumption to check: Performance issues with loading previews.
Validate with people who use this workflow before building.
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
Axios
React Navigation
React Native Reanimated
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.
