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
AdBlock Pro for Safari
Since 2015, AdBlock Pro for Safari has been trusted by millions of users and featured by Apple multiple times
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
71,176 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's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 AdBlock Pro for Safari: 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
Implement a more intuitive whitelist management system.
Assumption to check: Difficulty whitelisting certain sites
Validate with people who use this workflow before building.
Hypothesis 2
Enhance algorithms for better ad detection.
Assumption to check: Inconsistent ad blocking efficacy
Validate with people who use this workflow before building.
Hypothesis 3
Provide more detailed reporting and feedback mechanisms.
Assumption to check: Limited reporting options for users
Validate with people who use this workflow before building.
Hypothesis 4
Simplify UI elements and improve user guidance.
Assumption to check: User interface can be confusing
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
Since 2015, AdBlock Pro for Safari has been trusted by millions of users and featured by Apple multiple times. Enhance your browsing experience on iPhone, iPad, Mac, and Vision Pro with our powerful ad-blocking solution. Core Features: • Block Ads: Eliminate pop-ups, banners, autoplay videos, and more. • Preserve Privacy: Block trackers that collect your data online. • Speed up Browsing: Load pages 2-4x faster and save up to 60% data. • Save Battery: Extend battery life by reducing resource usage. • Eliminate Annoyances: Remove cookie prompts and similar distractions. Additional Features: • iCloud Sync: Seamlessly sync settings across all your devices. • Family Sharing: Share the app with up to 5 family members. • HTTPS Only Mode: Ensure all your connections are secure. • Quick Access: Use the built-in Safari shortcut for easy adjustments. • Custom Blocking: Select and hide specific elements on websites. • Picture-in-Picture: Watch videos while multitasking. • Block Miners: Prevent cryptocurrency mining scripts from running. • Blocking Scripts: Disable unwanted JavaScript. • Block Adult Content: Make browsing safer for kids. • Frequent Updates: Enjoy regular performance improvements. • Helpful Support: Access a dedicated support team for assistance. • Localized: Fully translated UI in 60+ languages. • And more... Supported Language Ad Filters: • English, Japanese, Indonesian, Russian, Persian, Latvian, Romanian, Bulgarian, Finnish, Korean, Swedish, Italian, French, Polish, Dutch, Estonian, Hebrew, Icelandic, Lithuanian, Danish, Greek, Turkish, Spanish, Portuguese, Czech, Slovak, Norwegian, Hungarian, Chinese, German, Vietnamese, Arabic. How It Works: • Our app uses Apple’s native Content Blocking API to feed blocking rules to Safari without accessing your browsing data. Compatibility: • Available for iOS, iPadOS, macOS, and visionOS. Report Ads: • Help us improve by reporting ads within the app. Join the Movement: • Love the app? Leave a review and share with friends! Premium and Terms: AdBlock Pro for Safari is free to download and includes powerful ad blocking for Safari. Premium unlocks enhanced country-specific ad blocking, additional blocking categories, and automatic filter updates. Premium may be available as a subscription or one-time purchase depending on your region and current App Store offer. Current pricing, trial availability, and renewal terms are shown in the App Store purchase sheet before confirmation. Subscriptions renew automatically unless canceled in App Store settings at least 24 hours before the end of the current period. Your Apple Account is charged after purchase confirmation. Terms of Service: https://www.adblockpro.com/terms Privacy Policy: https://www.adblockpro.com/privacy
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
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expo-notifications
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.
