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
AdGuard Ad Blocker for Safari
Block ads in Safari — including YouTube
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
18,385 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.
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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 included17 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 AdGuard Ad Blocker 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 aggressive blocking algorithm with real-time updates.
Assumption to check: Users report slow ad blocking and missed ads
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to add custom filters and rules for more control.
Assumption to check: Limited customization options for blocking rules
Validate with people who use this workflow before building.
Hypothesis 3
Redesign the settings screen for better organization and clarity.
Assumption to check: Some users find it hard to navigate settings
Validate with people who use this workflow before building.
Hypothesis 4
Optimize the app performance for various iOS devices.
Assumption to check: Inconsistent performance across different devices
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
Block ads in Safari — including YouTube. Stop trackers and protect your privacy with advanced DNS filtering. Free to use. Trusted by millions. BROWSE SAFARI WITHOUT DISTRACTION Block banners, popups, autoplay videos, and intrusive ads in Safari — including YouTube — free and without limitations. Clean up websites and stay focused on the content you actually came for. BLOCK TRACKING. PROTECT YOUR PRIVACY Stop hidden tracking scripts and digital fingerprints used by companies to track your activity. Protect your privacy while browsing and prevent personal data collection. FASTER LOADING. LESS DATA USAGE Improve page loading speed by removing ads and heavy scripts. Save mobile data and battery life when browsing, streaming, or using limited plans or roaming. DNS PROTECTION BEYOND SAFARI Encrypted DNS filtering blocks annoyances and unwanted requests system-wide — not just in Safari — and keeps your DNS queries private from ISPs, networks, and third parties watching your traffic. Secure your connection on public Wi-Fi. Use family-safe DNS to filter adult content on a child's device. FREE TO USE — WITH PRO FEATURES Free forever: Safari ad blocking + basic privacy protection. No account or registration required. Pro unlocks: advanced YouTube blocking, app protection via DNS, custom rules + security filters. 7-day free trial — upgrade seamlessly right from your live stats dashboard. SEE THE DEFENSES IN ACTION Monitor blocked ads and trackers with built-in statistics. View protection status and monitoring data in real time. FULL CONTROL WITH CUSTOM SETTINGS - Customize allowlists and blocklists - Choose DNS servers - Create user rules for filtering POWERFUL FILTERING TECHNOLOGY Advanced in-house filters and other popular filter lists. Includes protection against malvertising, phishing, and suspicious content. TRUSTED AND TRANSPARENT 17 years of experience in ad blocking. Fully open source on GitHub — inspect every line of code. No "acceptable ads" programs, no compromises. USE SAFARI THE WAY IT SHOULD BE Cleaner pages, fewer distractions, and better privacy. AdGuard for iOS gives you control over Safari browsing and DNS protection. Privacy policy: https://adguard.com/privacy.html Terms of use: https://adguard.com/eula.html Follow us on X @AdGuard Facebook: facebook.com/AdGuardEn/ Support: [email protected]
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.
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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.
