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
Whirlwind Clean: Cleanup Space
Constantly seeing the "Storage Full" warning on your iPhone? Is your device storage clogged with thousands of duplicate and unnecessary files?
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.8
1,116 ratings · Top 5%
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.
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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 included16 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 Whirlwind Clean: Cleanup Space: 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
Competitive pricing with generous free tier
Assumption to check: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Focus on most-requested features first
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Optimize for 60fps, fast load times
Assumption to check: Poor performance
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
Constantly seeing the "Storage Full" warning on your iPhone? Is your device storage clogged with thousands of duplicate and unnecessary files? Whirlwind Clean is here to launch the "Whirlwind" mode! Get a fast, thorough, and deep clean that instantly frees up precious storage space and restores your device to peak performance. Whirlwind Clean is the specialized optimization tool designed for iOS users. We deliver a cleaning experience that is as swift and comprehensive as a whirlwind, not only solving your low storage anxiety but also efficiently organizing your contacts and calendar events. Core Cleaning Power: Like a Whirlwind, Leaving Nothing Behind ►ONE-TAP PHONE CLEANUP - Instant Space Release: Activate the smart comprehensive scan with a single tap. Quickly analyze your device and execute a deep cleanup action. Experience the rapid storage relief as your phone instantly feels lighter. ►DEEP PHOTO GALLERY CLEAN - Duplicate Photo Removal: Utilizing a high-precision algorithm, we thoroughly identify and clear all identical photos in your gallery. Reclaim the storage wasted by redundant copies. - Similar Photo Cleanup: Intelligently filter through burst shots, blurry images, and similar-angled pictures. Quickly pinpoint the clutter, allowing you to delete the unnecessary items and keep your album tidy. ►EFFICIENT CONTACTS ORGANIZER - Duplicate Contact Merge: Automatically detect contacts with matching names or phone numbers and smartly merge them into single entries. Say goodbye to a messy address book. - Incomplete Contact Cleaner: Quickly scan for "ghost" contacts lacking names or phone numbers. Batch clean these incomplete entries to streamline your contacts list. ►CALENDAR EVENT CLEANUP - Expired Event Removal: Automatically scan for and delete past or expired historical calendar events and reminders, ensuring your schedule remains current and clutter-free. Why Choose Whirlwind Clean? - Thorough & Fast: Our algorithms focus on a deep, clean sweep, addressing your storage concerns completely. - All-in-One Utility: Comprehensive management across photos, contacts, and calendar data. - Effortless: Simplified interface allows you to complete complex cleaning tasks with just one tap. Download Whirlwind Clean now and experience the storage freedom that comes with a powerful, whirlwind-style clean! Legal Information - Privacy Policy: https://iserversboost.com/privacy - Terms of Use: https://iserversboost.com/terms
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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
Supabase
RevenueCat
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.
