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
Color Widgets
Color Widgets makes it simple to add aesthetic and handy widgets to your Home Screen and Lock Screen
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
524,117 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Color Widgets: map the core Utilities 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
Offer more widget styles and customization features.
Assumption to check: Limited customization options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement fewer ads or a premium ad-free experience.
Assumption to check: Frequent ads in the free version
Validate with people who use this workflow before building.
Hypothesis 3
Optimize widget loading times and performance.
Assumption to check: Performance issues with many widgets
Validate with people who use this workflow before building.
Hypothesis 4
Add a feature to share and discover widgets created by other users.
Assumption to check: Lack of community features like sharing widgets
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
Color Widgets makes it simple to add aesthetic and handy widgets to your Home Screen and Lock Screen. Browse thousands of predesigned widgets or, better yet, design your own with the easy-to-use widget customizer. Color Widgets doesn't just stop at widgets... you can also discover endless icon packs, themes, and wallpapers to perfectly match your aesthetic and interests. From customizing your widgets to changing your app icons and wallpaper, Color Widgets is THE destination to transform your device. UNLIMITED WIDGETS Customize each widget with no limits by adding photos, selecting styles, editing fonts, crafting a unique color scheme, and so much more. Here’s a glimpse at some of our most-used widgets: ● Photo Widget ● Time, Date & Battery Widgets ● Countdown Widget ● Weather Widgets ● Apple Music & Spotify Widget ● Calendar Widgets ● Custom Text/Quote Widget ● Activity Tracking & Pedometer Widgets ● Solar & Moon Phase Widgets …and dozens more! 15,000+ THEMES & WALLPAPERS Immerse yourself in the #1 largest collection of phone themes, with thousands of user-crafted designs that blend widgets, icon packs, and wallpapers into stunning aesthetics. Set entire themes in just a few clicks to fully transform your Lock & Home Screen. Plus, with new themes published daily by users and artists around the globe, the possibilities for customization are endless! AESTHETIC ICON PACKS Customize your app icons in seconds with Color Widgets’ custom icon packs. Replace your default app icons with custom-themed icon packs in thousands of designs. Apply a custom icon pack in just a few clicks with Color Widgets’ quick setup, or save the icons to your camera roll and set them in Shortcuts. FREE Enjoy Color Widgets for free, with an optional upgrade to supercharge your experience. If you decide to go Pro, enjoy a free 3-day trial and then it renews at USD$2.50/month billed yearly. PRIVACY-FIRST We believe that customizing your device shouldn’t come at the expense of your privacy, which is why we collect and store as little personal information as possible. Read more on how we protect your data in our privacy policy & terms of service: https://colorwidgets.app/privacy. MORE Color Widgets works on all iPhones, iPads, and Macs running iOS 14 or later and macOS 11 or later. If you choose to use the health widgets, Color Widgets integrates with the iOS Health app to collect and display health data – such as daily step count or activity progress – seamlessly from your iPhone or Apple Watch.
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
@react-native-community/color-picker
expo-image-picker
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.
