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
Search Ninja for Safari
Change how you browse! Save time, be more efficient and upgrade your Safari browsing experience.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.1
7 ratings · Below Average
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 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 Search Ninja for Safari: map the core Productivity 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
Allow users to add custom search engines.
Assumption to check: Limited search engine options
Validate with people who use this workflow before building.
Hypothesis 2
Introduce folders or categories for favorites.
Assumption to check: Lack of organization for favorites
Validate with people who use this workflow before building.
Hypothesis 3
Enhance UI with better visual design and animations.
Assumption to check: Basic UI design
Validate with people who use this workflow before building.
Hypothesis 4
Implement offline access for recent searches and favorites.
Assumption to check: No offline functionality
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
Change how you browse! Save time, be more efficient and upgrade your Safari browsing experience. Search Ninja is a Safari extension that has been built from the ground up to make it easy for you seamlessly switch between different search engines with preceding your search queries with a "hint". Search Ninja will do the rest. Looking for direction? Just type: "dir walmart near me" Search Ninja will automatically open Google Direction to give take you directly to the nearest Walmart. No complicated setup. Just install and use. Not just that Search Ninja comes pre-configured almost a dozen "hints". For example type "ppx how to cook sushi" and Search Ninja with use the Perplexity engine to give you an intelligent answer automatically. Do the same with other search engines like Bing, preceed b, or ddg for DuckDuckGo. Your privacy is important to us. The app does not collect, process or retain any information so use it with complete peace of mind. The app also comes with setup guide, as so setup is a breeze. Download today and see what everyone is talking about!
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
react-navigation
react-native-async-storage
react-native-paper
TypeScript
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.
