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
Themerella: Wallpaper & Widget
Themerella: Personalize Your Home & Lock Screen with Live Wallpapers & Widgets!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
567 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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
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.
JavaScript is required to complete mailbox verification.
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 Themerella: Wallpaper & Widget: 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.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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 widget designs and customization features.
Assumption to check: Limited customization options for widgets
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more user-friendly paywall experience.
Assumption to check: In-app purchase prompts can be intrusive
Validate with people who use this workflow before building.
Hypothesis 3
Expand the variety of wallpaper categories and options.
Assumption to check: Limited wallpaper categories
Validate with people who use this workflow before building.
Hypothesis 4
Optimize image loading and caching for better performance.
Assumption to check: Performance issues with high-resolution images
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
Themerella: Personalize Your Home & Lock Screen with Live Wallpapers & Widgets! Welcome to Themerella – Your All-in-One Customization Studio for Dynamic Wallpapers, Creative Widgets, and Stunning Themes! Key Features: 1. Turn Videos into Live Wallpapers Bring your lock screen to life! Convert your favorite videos into smooth, high-quality live wallpapers and amaze every time you wake your device. 2. DIY Wallpaper Creator Unleash your inner artist! Design your own wallpapers with custom colors, text, effects, and more. Save and share your unique creations instantly. 3. Interactive Lock Screen Widgets Personalize your lock screen with stylish, functional widgets. Stay informed and express your style—right from your lock screen. 4. Huge Collection of Live & 3D Wallpapers Explore endless options with stunning live, 3D (iOS 16 ready!), and HD static wallpapers. From nature and abstract to minimal and artistic—there’s something for every mood. Subscription Info: Upgrade to Themerella Premium for uninterrupted access to all features, exclusive content, and priority updates! - Choose between weekly or annual plans. - Payment is charged to your iTunes Account after confirmation. - Manage subscriptions anytime via your Account Settings. - Auto-renewal can be turned off at least 24 hours before the current period ends. - Renewals are charged within 24 hours before each period ends. - No refunds for current subscription periods upon cancellation. - Free trial (if available) will be forfeited upon subscription. We’re constantly evolving! Help us improve by sharing your ideas and feedback. Contact us at: [email protected] Terms of Service: https://quantumirl.com/TermsofUse/1/TermsofUse.html Privacy Policy: https://quantumirl.com/TermsofUse/1/PrivacyPolicy.html Download Themerella now and transform your device into a reflection of you! Express yourself freely with wallpapers and widgets like never before.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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-navigation/native
axios
@supabase/supabase-js
react-native-reanimated
expo-image-picker
zustand
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.
