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
Duster - Phone Storage Cleaner
Clean Smarter
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
4,449 ratings · Top 30%
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
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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 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 Duster - Phone Storage Cleaner: 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
Add more cleaning options and customization.
Assumption to check: Limited functionality for advanced users
Validate with people who use this workflow before building.
Hypothesis 2
Focus on quality assurance and bug fixes.
Assumption to check: Low user rating due to bugs
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer information on free vs paid features.
Assumption to check: In-app purchase system can be unclear
Validate with people who use this workflow before building.
Hypothesis 4
Enhance support resources and user tutorials.
Assumption to check: Lack of user support and documentation
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
Clean Smarter. Store Better. Is your iPhone running out of space? Struggling with cluttered media, duplicate files, or slow performance? Duster helps you organize, clean, and manage your photos, videos, contacts, and files efficiently. Built with advanced AI algorithms, it accurately identifies what you no longer need and guides you through safe removal — all while keeping your data secure and under your control. Key Features: AI Photo and Video Organizer • Free up space by cleaning your photo and video libraries intelligently. • Detect and remove duplicate or similar photos • Identify blurry, low-quality, or unwanted images • Compress videos to reduce file sizes while maintaining resolution • Trim long videos automatically based on smart suggestions • Remove sensitive metadata from images before sharing Contact Management • Keep your address book accurate and streamlined. • Detect and merge duplicate contacts • Eliminate incomplete, empty, or unused entries Secure Private Vault • Store your sensitive files in a secure, encrypted location. • Lock access with Face ID, Touch ID, or passcode • Hide personal photos, videos, contacts, files and notes • No data stored in the cloud — 100% on-device privacy Visual Storage Analytics • Understand your storage at a glance with powerful visual tools. • View real-time charts and graphs of file distribution • Monitor usage across media, documents, system files, and apps • Receive personalised tips on how to optimize storage space Recycle Bin and Recovery • Accidentally deleted something important? • Restore deleted photos, videos, contacts, and other files • Items remain recoverable for up to 30 days • Built-in safeguards ensure you never lose data unintentionally Why Duster? • AI-Powered Efficiency: Duster analyses your device content intelligently so you don’t have to scroll through every file. • Complete Privacy: All operations are performed on-device. Nothing is uploaded or shared without your permission. • Fast and Simple: Clean up storage, organize files — all in a clean and user-friendly interface. • No Technical Knowledge Needed: Whether you're a casual user or a power user, Duster works for everyone. Your iPhone, Reimagined Duster gives you the tools to take control of your iPhone’s storage without stress. From cleaning and organising to privacy and recovery, everything is built to make your device run better — smoother, faster, and cleaner. Whether you’re running out of space, organising your media, or simply looking for better performance, Duster is the solution. Upgrade to Duster Premium! Unlock powerful cleaning tools with Duster Premium. If you choose to subscribe, your iTunes account will be charged, and auto-renewal will occur 24 hours before the end of the current period. You can manage your subscription anytime in your iTunes Store settings. Privacy Policy & Terms of Use: https://bodrya-hardik.blogspot.com/2025/06/privacy-policy-duster-ai-cleaner.html https://bodrya-hardik.blogspot.com/2025/06/terms-of-use-duster-ai-cleaner.html
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-native-reanimated
expo-notifications
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.
